TY  - JOUR
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
AU  - Jovanović, Aleksandar
AU  - Janković Pantić, Jovana
PY  - 2024
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1220
AB  - The concept of a bio-based economy has been adopted by many advanced countries around
the world, and thermochemical conversion of waste biomass is recognized as the most effective
approach to achieve this objective. Recent studies indicate that hydrothermal carbonization (HTC)
is a promising method for the conversion of waste biomass towards novel carbonaceous materials
known as hydrochars. This cost-effective and eco-friendly process operates at moderate temperatures
(180–280 ◦C) and uses water as a reaction medium. HTC has been successfully applied to a wide
range of waste materials, including lignocellulose biomass, sewage sludge, algae, and municipal solid
waste, generating desirable carbonaceous products. This review provides an overview of the key
HTC process parameters, as well as the physical and chemical properties of the obtained hydrochar.
It also explores potential applications of produced materials and highlights the modification and
functionalization techniques that can transform these materials into game-changing solutions for a
sustainable future.
PB  - MDPI
T2  - Processes
T1  - Hydrothermal Carbonization of Waste Biomass: A Review of Hydrochar Preparation and Environmental Application
IS  - 1
SP  - 207
VL  - 12
DO  - 10.3390/pr12010207
ER  - 

@article{
author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Koprivica, Marija and Dimitrijević, Jelena and Jovanović, Aleksandar and Janković Pantić, Jovana",
year = "2024",
abstract = "The concept of a bio-based economy has been adopted by many advanced countries around
the world, and thermochemical conversion of waste biomass is recognized as the most effective
approach to achieve this objective. Recent studies indicate that hydrothermal carbonization (HTC)
is a promising method for the conversion of waste biomass towards novel carbonaceous materials
known as hydrochars. This cost-effective and eco-friendly process operates at moderate temperatures
(180–280 ◦C) and uses water as a reaction medium. HTC has been successfully applied to a wide
range of waste materials, including lignocellulose biomass, sewage sludge, algae, and municipal solid
waste, generating desirable carbonaceous products. This review provides an overview of the key
HTC process parameters, as well as the physical and chemical properties of the obtained hydrochar.
It also explores potential applications of produced materials and highlights the modification and
functionalization techniques that can transform these materials into game-changing solutions for a
sustainable future.",
publisher = "MDPI",
journal = "Processes",
title = "Hydrothermal Carbonization of Waste Biomass: A Review of Hydrochar Preparation and Environmental Application",
number = "1",
pages = "207",
volume = "12",
doi = "10.3390/pr12010207"
}

Petrović, J., Ercegović, M., Simić, M., Koprivica, M., Dimitrijević, J., Jovanović, A.,& Janković Pantić, J.. (2024). Hydrothermal Carbonization of Waste Biomass: A Review of Hydrochar Preparation and Environmental Application. in Processes
MDPI., 12(1), 207.
https://doi.org/10.3390/pr12010207

Petrović J, Ercegović M, Simić M, Koprivica M, Dimitrijević J, Jovanović A, Janković Pantić J. Hydrothermal Carbonization of Waste Biomass: A Review of Hydrochar Preparation and Environmental Application. in Processes. 2024;12(1):207.
doi:10.3390/pr12010207 .

Petrović, Jelena, Ercegović, Marija, Simić, Marija, Koprivica, Marija, Dimitrijević, Jelena, Jovanović, Aleksandar, Janković Pantić, Jovana, "Hydrothermal Carbonization of Waste Biomass: A Review of Hydrochar Preparation and Environmental Application" in Processes, 12, no. 1 (2024):207,
https://doi.org/10.3390/pr12010207 . .

TY  - CONF
AU  - Simić, Marija
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
AU  - Jovanović, Aleksandar
AU  - Milojkov, Dušan
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/680
AB  - The corn cob was investigated as available agrowaste material for the production of potential efficient material for heavy
metals removal. The hydrothermal carbonization (HTC) technology is one of the appropriate methods for biomass
transformation into high-value carbonaceous products than can be utilized as adsorbents. In this study, modified pyrohydrochar
derived from corn cob (MCC) was effectively prepared by modification with Mg-Fe solution and pyrolysis.
This material was used for Pb ions removal from aqueous solutions. The effect of solution pH, contact time and initial Pb
concentration were examined in batch system. The achieved results revealed that the most effective Pb adsorption take
place at pH 5. The experimental results were fitted to Langmuir, Freundlich, Sips and Redlich-Peterson isotherm models.
The best data fit was achieved with the Sips isotherm model with maximum adsorption capacity for Pb removal of 214.9
mg/g. Additionally, the experimentally results from kinetic study were fitted by pseudo-first and pseudo-second order
models. According to kinetic parameters, the Pb removal using MCC follows pseudo-second order model, which assumes
that chemical interaction between Pb ions and functional groups on the MCC surface was involved in metal adsorption.
According to data from this investigation and in comparisons to other adsorbents can be concluded that investigated
material can be used as potential suitable adsorbent of Pb from aqueous solutions.
PB  - Belgrade : Association of Metallurgical Engineers of Serbia
C3  - 5th Metallurgical & Materials Engineering Congress of South-East Europe
T1  - Mg/Fe-pyro-hydro char derived from corn cob as effective adsorbent of lead removal from aqueous solutions
EP  - 364
SP  - 359
ER  - 

@conference{
author = "Simić, Marija and Petrović, Jelena and Ercegović, Marija and Koprivica, Marija and Dimitrijević, Jelena and Jovanović, Aleksandar and Milojkov, Dušan",
year = "2023",
abstract = "The corn cob was investigated as available agrowaste material for the production of potential efficient material for heavy
metals removal. The hydrothermal carbonization (HTC) technology is one of the appropriate methods for biomass
transformation into high-value carbonaceous products than can be utilized as adsorbents. In this study, modified pyrohydrochar
derived from corn cob (MCC) was effectively prepared by modification with Mg-Fe solution and pyrolysis.
This material was used for Pb ions removal from aqueous solutions. The effect of solution pH, contact time and initial Pb
concentration were examined in batch system. The achieved results revealed that the most effective Pb adsorption take
place at pH 5. The experimental results were fitted to Langmuir, Freundlich, Sips and Redlich-Peterson isotherm models.
The best data fit was achieved with the Sips isotherm model with maximum adsorption capacity for Pb removal of 214.9
mg/g. Additionally, the experimentally results from kinetic study were fitted by pseudo-first and pseudo-second order
models. According to kinetic parameters, the Pb removal using MCC follows pseudo-second order model, which assumes
that chemical interaction between Pb ions and functional groups on the MCC surface was involved in metal adsorption.
According to data from this investigation and in comparisons to other adsorbents can be concluded that investigated
material can be used as potential suitable adsorbent of Pb from aqueous solutions.",
publisher = "Belgrade : Association of Metallurgical Engineers of Serbia",
journal = "5th Metallurgical & Materials Engineering Congress of South-East Europe",
title = "Mg/Fe-pyro-hydro char derived from corn cob as effective adsorbent of lead removal from aqueous solutions",
pages = "364-359"
}

Simić, M., Petrović, J., Ercegović, M., Koprivica, M., Dimitrijević, J., Jovanović, A.,& Milojkov, D.. (2023). Mg/Fe-pyro-hydro char derived from corn cob as effective adsorbent of lead removal from aqueous solutions. in 5th Metallurgical & Materials Engineering Congress of South-East Europe
Belgrade : Association of Metallurgical Engineers of Serbia., 359-364.

Simić M, Petrović J, Ercegović M, Koprivica M, Dimitrijević J, Jovanović A, Milojkov D. Mg/Fe-pyro-hydro char derived from corn cob as effective adsorbent of lead removal from aqueous solutions. in 5th Metallurgical & Materials Engineering Congress of South-East Europe. 2023;:359-364..

Simić, Marija, Petrović, Jelena, Ercegović, Marija, Koprivica, Marija, Dimitrijević, Jelena, Jovanović, Aleksandar, Milojkov, Dušan, "Mg/Fe-pyro-hydro char derived from corn cob as effective adsorbent of lead removal from aqueous solutions" in 5th Metallurgical & Materials Engineering Congress of South-East Europe (2023):359-364.

TY  - CONF
AU  - Koprivica, Marija
AU  - Petrović, Jelena
AU  - Dimitrijević, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Grubišić, Mirko
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/837
AB  - In this study, Paulownia tree leaves hydrochars (PL-HTCs) were used as potential adsorbents for
Zn(II), Cd(II) and Mn(II) ions from aqueous solution and their efficiency was investigated. The
preliminary adsorption results showed that hydrochars had better affinity for Cd(II) than for Zn(II)
and Mn(II) ions removal. In order to improve adsorption capacity, hydrochar obtained at 220°C were
activated with NaOH and further investigated only for Cd(II) removal. Alkali activated hydrochar
(AH-220) has significantly better efficiency (q=24.05 mg/g, E=52.57%) in removing Cd(II) ions than
hydrochar before modification. Adsorption kinetic studies showed that Cd(II) ions sorption at AH-220
surface followed the pseudo-second-order model. This implies that the adsorption process was mostly
controlled by the chemical binding.
Keywords: tree leaves hydrochars, adsorption, heavy metals, kinetic studies.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - "30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23"
T1  - Removal efficiency of heavy metal ions from aqueous solution with waste tree biomass hydrochars
EP  - 266
SP  - 261
ER  - 

@conference{
author = "Koprivica, Marija and Petrović, Jelena and Dimitrijević, Jelena and Ercegović, Marija and Simić, Marija and Grubišić, Mirko",
year = "2023",
abstract = "In this study, Paulownia tree leaves hydrochars (PL-HTCs) were used as potential adsorbents for
Zn(II), Cd(II) and Mn(II) ions from aqueous solution and their efficiency was investigated. The
preliminary adsorption results showed that hydrochars had better affinity for Cd(II) than for Zn(II)
and Mn(II) ions removal. In order to improve adsorption capacity, hydrochar obtained at 220°C were
activated with NaOH and further investigated only for Cd(II) removal. Alkali activated hydrochar
(AH-220) has significantly better efficiency (q=24.05 mg/g, E=52.57%) in removing Cd(II) ions than
hydrochar before modification. Adsorption kinetic studies showed that Cd(II) ions sorption at AH-220
surface followed the pseudo-second-order model. This implies that the adsorption process was mostly
controlled by the chemical binding.
Keywords: tree leaves hydrochars, adsorption, heavy metals, kinetic studies.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = ""30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23"",
title = "Removal efficiency of heavy metal ions from aqueous solution with waste tree biomass hydrochars",
pages = "266-261"
}

Koprivica, M., Petrović, J., Dimitrijević, J., Ercegović, M., Simić, M.,& Grubišić, M.. (2023). Removal efficiency of heavy metal ions from aqueous solution with waste tree biomass hydrochars. in "30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23"
Bor : University of Belgrade, Technical Faculty in Bor., 261-266.

Koprivica M, Petrović J, Dimitrijević J, Ercegović M, Simić M, Grubišić M. Removal efficiency of heavy metal ions from aqueous solution with waste tree biomass hydrochars. in "30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23". 2023;:261-266..

Koprivica, Marija, Petrović, Jelena, Dimitrijević, Jelena, Ercegović, Marija, Simić, Marija, Grubišić, Mirko, "Removal efficiency of heavy metal ions from aqueous solution with waste tree biomass hydrochars" in "30th INTERNATIONAL CONFERENCE ECOLOGICAL TRUTH AND ENVIRONMENTAL RESEARCH – EcoTER’23" (2023):261-266.

TY  - JOUR
AU  - Koprivica, Marija
AU  - Simić, Marija
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Dimitrijević, Jelena
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/844
AB  - In this study, hydrothermal carbonization (HTC) at five temperatures (180, 200, 220, 240,
and 260  C) was applied to transform Paulownia leaves (PL) into a carbonaceous sorbent of Pb(II)
from aqueous solutions. To enhance the adsorption efficiency of the obtained hydrochar (PH),
subsequent alkali activation was performed using NaOH. Preliminary results of the Pb(II) adsorption
(CPb = 200 mg/L) showed removal coefficients after 48 h of 73.44 mg/g, 82.37 mg/g, and 110.9 mg/g
for PL, PH-220, and MPH-220, respectively. The selected hydrochar (PH-220) and modified hydrochar
(MPH-220) were further investigated by scanning electron microscopy (SEM) and Fourier transform
infrared spectroscopy (FTIR). The results revealed that alkali treatment changed the hydrochar
structure and, thus, improved its adsorption performance. The kinetic parameters showed that
the Pb(II) sorption onto MPH-220 followed a pseudo-second-order model, while the intra-particle
diffusion went through two simultaneous stages. The Langmuir isotherm model best described the
experimental data and indicated the value of 174.75 mg Pb(II)/g as the maximum adsorption capacity.
The two possible mechanisms of Pb(II) binding were complexation and/or Pb-  electron interaction.
The obtained results indicate the great potential of MPH-220 for Pb(II) removal from aqueous media
and its potential utilization as an effective adsorbent for wastewater purification.
PB  - MDPI
T2  - Processes
T1  - Evaluation of Adsorption Efficiency on Pb(II) Ions Removal Using Alkali-Modified Hydrochar from Paulownia Leaves
IS  - 5
VL  - 11
DO  - 10.3390/pr11051327
ER  - 

@article{
author = "Koprivica, Marija and Simić, Marija and Petrović, Jelena and Ercegović, Marija and Dimitrijević, Jelena",
year = "2023",
abstract = "In this study, hydrothermal carbonization (HTC) at five temperatures (180, 200, 220, 240,
and 260  C) was applied to transform Paulownia leaves (PL) into a carbonaceous sorbent of Pb(II)
from aqueous solutions. To enhance the adsorption efficiency of the obtained hydrochar (PH),
subsequent alkali activation was performed using NaOH. Preliminary results of the Pb(II) adsorption
(CPb = 200 mg/L) showed removal coefficients after 48 h of 73.44 mg/g, 82.37 mg/g, and 110.9 mg/g
for PL, PH-220, and MPH-220, respectively. The selected hydrochar (PH-220) and modified hydrochar
(MPH-220) were further investigated by scanning electron microscopy (SEM) and Fourier transform
infrared spectroscopy (FTIR). The results revealed that alkali treatment changed the hydrochar
structure and, thus, improved its adsorption performance. The kinetic parameters showed that
the Pb(II) sorption onto MPH-220 followed a pseudo-second-order model, while the intra-particle
diffusion went through two simultaneous stages. The Langmuir isotherm model best described the
experimental data and indicated the value of 174.75 mg Pb(II)/g as the maximum adsorption capacity.
The two possible mechanisms of Pb(II) binding were complexation and/or Pb-  electron interaction.
The obtained results indicate the great potential of MPH-220 for Pb(II) removal from aqueous media
and its potential utilization as an effective adsorbent for wastewater purification.",
publisher = "MDPI",
journal = "Processes",
title = "Evaluation of Adsorption Efficiency on Pb(II) Ions Removal Using Alkali-Modified Hydrochar from Paulownia Leaves",
number = "5",
volume = "11",
doi = "10.3390/pr11051327"
}

Koprivica, M., Simić, M., Petrović, J., Ercegović, M.,& Dimitrijević, J.. (2023). Evaluation of Adsorption Efficiency on Pb(II) Ions Removal Using Alkali-Modified Hydrochar from Paulownia Leaves. in Processes
MDPI., 11(5).
https://doi.org/10.3390/pr11051327

Koprivica M, Simić M, Petrović J, Ercegović M, Dimitrijević J. Evaluation of Adsorption Efficiency on Pb(II) Ions Removal Using Alkali-Modified Hydrochar from Paulownia Leaves. in Processes. 2023;11(5).
doi:10.3390/pr11051327 .

Koprivica, Marija, Simić, Marija, Petrović, Jelena, Ercegović, Marija, Dimitrijević, Jelena, "Evaluation of Adsorption Efficiency on Pb(II) Ions Removal Using Alkali-Modified Hydrochar from Paulownia Leaves" in Processes, 11, no. 5 (2023),
https://doi.org/10.3390/pr11051327 . .

TY  - CONF
AU  - Dimitrijević, Jelena
AU  - Jevtić, Sanja
AU  - Marinković, Aleksandar
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Petrović, Jelena
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/832
AB  - In this paper, the ability of waste biomass as an adsorbent was investigated. Oat straw was chosen as the starting raw material. In order to improve the adsorption capacity this material was modified with selected deep eutectic solvent (DES). Changes in the structure of the native and modified samples were examined using the SEM analysis. The efficiency of the adsorption of heavy metal ions from a multimetal solution was tested on the modified oat straw. The maximum obtained capacities of lead, copper and zinc ions were 77mg/g, 29.5mg/g and 44.1mg/g, respectively. The obtained results showed that adsorption follows pseudo-second-order kinetics model that imply chemisorption as a rate controlling step.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - XV International Mineral Processing and Recycling Conference
T1  - Removal of heavy metal ions from multimetallic solution by modified oat straw
EP  - 253
SP  - 248
ER  - 

@conference{
author = "Dimitrijević, Jelena and Jevtić, Sanja and Marinković, Aleksandar and Simić, Marija and Koprivica, Marija and Petrović, Jelena",
year = "2023",
abstract = "In this paper, the ability of waste biomass as an adsorbent was investigated. Oat straw was chosen as the starting raw material. In order to improve the adsorption capacity this material was modified with selected deep eutectic solvent (DES). Changes in the structure of the native and modified samples were examined using the SEM analysis. The efficiency of the adsorption of heavy metal ions from a multimetal solution was tested on the modified oat straw. The maximum obtained capacities of lead, copper and zinc ions were 77mg/g, 29.5mg/g and 44.1mg/g, respectively. The obtained results showed that adsorption follows pseudo-second-order kinetics model that imply chemisorption as a rate controlling step.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "XV International Mineral Processing and Recycling Conference",
title = "Removal of heavy metal ions from multimetallic solution by modified oat straw",
pages = "253-248"
}

Dimitrijević, J., Jevtić, S., Marinković, A., Simić, M., Koprivica, M.,& Petrović, J.. (2023). Removal of heavy metal ions from multimetallic solution by modified oat straw. in XV International Mineral Processing and Recycling Conference
Bor : University of Belgrade, Technical Faculty in Bor., 248-253.

Dimitrijević J, Jevtić S, Marinković A, Simić M, Koprivica M, Petrović J. Removal of heavy metal ions from multimetallic solution by modified oat straw. in XV International Mineral Processing and Recycling Conference. 2023;:248-253..

Dimitrijević, Jelena, Jevtić, Sanja, Marinković, Aleksandar, Simić, Marija, Koprivica, Marija, Petrović, Jelena, "Removal of heavy metal ions from multimetallic solution by modified oat straw" in XV International Mineral Processing and Recycling Conference (2023):248-253.

TY  - CONF
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
AU  - Marković, Marija
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/974
AB  - This study examined Mg/Fe-pyro-hydrochar produced from grape pomace as potential sorbent for Cu2+
ions. Obtained results show that the Mg/Fe-modification increases the adsorption capacity for five times.
To evaluate the effectiveness of produced sorbent, Langmuir, Freundlich, Sips and Redlich-Peterson
isotherm models were applied to batch adsorption results. According to applied models Cu2+ adsorption at
equilibrium fitted the Sips isotherm model, with a maximum achieved capacity of 75 mg/g. Spectroscopic
analysis reveal that oxygenated active sites and aromatic groups on pyro-hydrochar surface participate in
Cu2+ions binding. In general, preliminary findings from this paper offers perspective to effective utilization
of waste biomass as an efficient adsorbents for Cu2+ ions removal.
PB  - Bor : University of Belgrade, Technical Faculty in Bor
C3  - 54th International October Conference on Mining and Metallurgy
T1  - Mg/Fe-modified hydrochar with promoted adsorption performances
EP  - 273
SP  - 270
ER  - 

@conference{
author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Koprivica, Marija and Dimitrijević, Jelena and Marković, Marija",
year = "2023",
abstract = "This study examined Mg/Fe-pyro-hydrochar produced from grape pomace as potential sorbent for Cu2+
ions. Obtained results show that the Mg/Fe-modification increases the adsorption capacity for five times.
To evaluate the effectiveness of produced sorbent, Langmuir, Freundlich, Sips and Redlich-Peterson
isotherm models were applied to batch adsorption results. According to applied models Cu2+ adsorption at
equilibrium fitted the Sips isotherm model, with a maximum achieved capacity of 75 mg/g. Spectroscopic
analysis reveal that oxygenated active sites and aromatic groups on pyro-hydrochar surface participate in
Cu2+ions binding. In general, preliminary findings from this paper offers perspective to effective utilization
of waste biomass as an efficient adsorbents for Cu2+ ions removal.",
publisher = "Bor : University of Belgrade, Technical Faculty in Bor",
journal = "54th International October Conference on Mining and Metallurgy",
title = "Mg/Fe-modified hydrochar with promoted adsorption performances",
pages = "273-270"
}

Petrović, J., Ercegović, M., Simić, M., Koprivica, M., Dimitrijević, J.,& Marković, M.. (2023). Mg/Fe-modified hydrochar with promoted adsorption performances. in 54th International October Conference on Mining and Metallurgy
Bor : University of Belgrade, Technical Faculty in Bor., 270-273.

Petrović J, Ercegović M, Simić M, Koprivica M, Dimitrijević J, Marković M. Mg/Fe-modified hydrochar with promoted adsorption performances. in 54th International October Conference on Mining and Metallurgy. 2023;:270-273..

Petrović, Jelena, Ercegović, Marija, Simić, Marija, Koprivica, Marija, Dimitrijević, Jelena, Marković, Marija, "Mg/Fe-modified hydrochar with promoted adsorption performances" in 54th International October Conference on Mining and Metallurgy (2023):270-273.

TY  - CONF
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Ercegović, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/975
AB  - Glavni cilj ove studije jeste priprema Fe/Mg-modifikovane hidročađi komine grožđa i ispitivanje uticaja dvostepenog termohemijskog tretmana na efikasnost uklanjanja jona cinka. Preliminarni adsorpcioni test je ukazao na višestruko poboljšanje kapaciteta sorpcije nakon modifikacije. Detaljniji uvid u adsorpcioni proces je ispitan kroz uticaj vremena kontakta i kinetičku studiju. Dobijeni rezultati su pokazali da uklanjanje jona cinka primenom Fe/Mg-hidročađi sledi kinetički model pseudo-drugog reda. Ovaj model pretpostavlja hemijsku interakciju između jona metala i funcionalnih grupa na površini hidročađi kao glavni mehanizam vezivanja. Sumiranjem zaključaka se može istaći da Fe/Mg-hidročađ pokazuje efikasno adsorpciono ponašanje i može se razmatrati kao nova opcija valorizacije agro-otpada.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 44. Međunarodna konferencija VODOVOD I KANALIZACIJA '23
T1  - Dvostepena termohemijska modifikacija otpadne biomase kao pravac dobijanja visokoefikasnih adsorbenasa
EP  - 264
SP  - 258
ER  - 

@conference{
author = "Petrović, Jelena and Simić, Marija and Ercegović, Marija and Koprivica, Marija and Dimitrijević, Jelena",
year = "2023",
abstract = "Glavni cilj ove studije jeste priprema Fe/Mg-modifikovane hidročađi komine grožđa i ispitivanje uticaja dvostepenog termohemijskog tretmana na efikasnost uklanjanja jona cinka. Preliminarni adsorpcioni test je ukazao na višestruko poboljšanje kapaciteta sorpcije nakon modifikacije. Detaljniji uvid u adsorpcioni proces je ispitan kroz uticaj vremena kontakta i kinetičku studiju. Dobijeni rezultati su pokazali da uklanjanje jona cinka primenom Fe/Mg-hidročađi sledi kinetički model pseudo-drugog reda. Ovaj model pretpostavlja hemijsku interakciju između jona metala i funcionalnih grupa na površini hidročađi kao glavni mehanizam vezivanja. Sumiranjem zaključaka se može istaći da Fe/Mg-hidročađ pokazuje efikasno adsorpciono ponašanje i može se razmatrati kao nova opcija valorizacije agro-otpada.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "44. Međunarodna konferencija VODOVOD I KANALIZACIJA '23",
title = "Dvostepena termohemijska modifikacija otpadne biomase kao pravac dobijanja visokoefikasnih adsorbenasa",
pages = "264-258"
}

Petrović, J., Simić, M., Ercegović, M., Koprivica, M.,& Dimitrijević, J.. (2023). Dvostepena termohemijska modifikacija otpadne biomase kao pravac dobijanja visokoefikasnih adsorbenasa. in 44. Međunarodna konferencija VODOVOD I KANALIZACIJA '23
Beograd : Savez inženjera i tehničara Srbije., 258-264.

Petrović J, Simić M, Ercegović M, Koprivica M, Dimitrijević J. Dvostepena termohemijska modifikacija otpadne biomase kao pravac dobijanja visokoefikasnih adsorbenasa. in 44. Međunarodna konferencija VODOVOD I KANALIZACIJA '23. 2023;:258-264..

Petrović, Jelena, Simić, Marija, Ercegović, Marija, Koprivica, Marija, Dimitrijević, Jelena, "Dvostepena termohemijska modifikacija otpadne biomase kao pravac dobijanja visokoefikasnih adsorbenasa" in 44. Međunarodna konferencija VODOVOD I KANALIZACIJA '23 (2023):258-264.

TY  - CONF
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
PY  - 2023
UR  - https://www.cpcmconf.org/
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1215
AB  - Water pollution caused by industrial effluents without prior purification treatment represents one of the serious environmental concerns in contemporary times. Lately, due to its surface characteristics, pronounced chemical reactivity, and efficient regeneration ability, hydrochar obtained by hydrothermal carbonization of waste biomass has been explored as sustainable adsorbents for the removal of different pollutants. Besides, potential disadvantages of this material, such as low specific surface area and porosity, are easily overcome by surface modifications and composites synthesis. Previous reported studies have shown that chemical methods that include hydrogen peroxide or alkalis treatment, and incorporation of metals onto hydrochar surface can significantly improve its adsorption performances. Within this study, the potential application of hydrochars from different precursors and its composites as efficient sorbents of organic dyes and heavy metals from aqueous solutions will be discussed. Special attention will be directed towards structural changes caused by modification, achieved adsorption capacities and potential adsorption mechanisms. In general, the valorisation of hydrochar as a polluter sorbent solves the problems of sustainable and efficient material for purification and disposal of waste with permanent consequences to the environment.
C3  - The 10th Global Conference on Polymer and Composite Materials (PCM 2023)
T1  - Hydrochar and Its Composites for Highly Efficient Pollutant Removal
EP  - 15
SP  - 14
ER  - 

@conference{
author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Koprivica, Marija and Dimitrijević, Jelena",
year = "2023",
abstract = "Water pollution caused by industrial effluents without prior purification treatment represents one of the serious environmental concerns in contemporary times. Lately, due to its surface characteristics, pronounced chemical reactivity, and efficient regeneration ability, hydrochar obtained by hydrothermal carbonization of waste biomass has been explored as sustainable adsorbents for the removal of different pollutants. Besides, potential disadvantages of this material, such as low specific surface area and porosity, are easily overcome by surface modifications and composites synthesis. Previous reported studies have shown that chemical methods that include hydrogen peroxide or alkalis treatment, and incorporation of metals onto hydrochar surface can significantly improve its adsorption performances. Within this study, the potential application of hydrochars from different precursors and its composites as efficient sorbents of organic dyes and heavy metals from aqueous solutions will be discussed. Special attention will be directed towards structural changes caused by modification, achieved adsorption capacities and potential adsorption mechanisms. In general, the valorisation of hydrochar as a polluter sorbent solves the problems of sustainable and efficient material for purification and disposal of waste with permanent consequences to the environment.",
journal = "The 10th Global Conference on Polymer and Composite Materials (PCM 2023)",
title = "Hydrochar and Its Composites for Highly Efficient Pollutant Removal",
pages = "15-14"
}

Petrović, J., Ercegović, M., Simić, M., Koprivica, M.,& Dimitrijević, J.. (2023). Hydrochar and Its Composites for Highly Efficient Pollutant Removal. in The 10th Global Conference on Polymer and Composite Materials (PCM 2023), 14-15.

Petrović J, Ercegović M, Simić M, Koprivica M, Dimitrijević J. Hydrochar and Its Composites for Highly Efficient Pollutant Removal. in The 10th Global Conference on Polymer and Composite Materials (PCM 2023). 2023;:14-15..

Petrović, Jelena, Ercegović, Marija, Simić, Marija, Koprivica, Marija, Dimitrijević, Jelena, "Hydrochar and Its Composites for Highly Efficient Pollutant Removal" in The 10th Global Conference on Polymer and Composite Materials (PCM 2023) (2023):14-15.

TY  - JOUR
AU  - Dimitrijević, Jelena
AU  - Jevtić, Sanja
AU  - Marinković, Aleksandar
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Petrović, Jelena
PY  - 2023
UR  - http://TechnoRep.tmf.bg.ac.rs/handle/123456789/6463
UR  - https://ritnms.itnms.ac.rs/handle/123456789/661
AB  - In the proposed study, agro-waste biomass oat straw (OS) was considered a potential adsorbent for Cu(II), Zn(II), and Se(IV) removal from aqueous solutions. In order to obtain material with better adsorption abilities, the OS was modified by a deep eutectic solvent (DES). Structural changes caused by the applied modification route were considered by pHpzc, SEM, FTIR, and DSC/TG analysis. These methods discovered that lignocellulosic biomass degradation and material functionalization were achieved by DES treatment. Preliminary adsorption tests showed an over fourfold increase in capacity upon modification. The kinetic parameters implied that adsorption on modified material followed the pseudo-second-order kinetic model. Different isotherm models were applied to experimental data, while the Sips isotherm model best describes the equilibrium of the adsorption process on the tested modified material. According to this isotherm model, the maximum achieved adsorption capacities of Cu(II), Zn(II), and Se(IV) were 48.21, 55.06, and 87.85 mg/g, respectively. The summarized experimental results revealed that the adsorption process of selected cations on modified OS was predominantly caused by chemisorption, while, in addition to chemisorption, electrostatic forces were also responsible for Se(IV) removal. Desorption test showed that the prepared material could be reused for at least 3 cycles, with minimal efficiency loss. Briefly, this study reinforces that DES-modified agro-waste biomass could be used as a promising adsorbent for cations and oxyanions from wastewater.
PB  - MDPI
T2  - Processes
T1  - Ability of Deep Eutectic Solvent Modified Oat Straw for Cu(II), Zn(II), and Se(IV) Ions Removal
IS  - 5
SP  - 1308
VL  - 11
DO  - 10.3390/pr11051308
ER  - 

@article{
author = "Dimitrijević, Jelena and Jevtić, Sanja and Marinković, Aleksandar and Simić, Marija and Koprivica, Marija and Petrović, Jelena",
year = "2023",
abstract = "In the proposed study, agro-waste biomass oat straw (OS) was considered a potential adsorbent for Cu(II), Zn(II), and Se(IV) removal from aqueous solutions. In order to obtain material with better adsorption abilities, the OS was modified by a deep eutectic solvent (DES). Structural changes caused by the applied modification route were considered by pHpzc, SEM, FTIR, and DSC/TG analysis. These methods discovered that lignocellulosic biomass degradation and material functionalization were achieved by DES treatment. Preliminary adsorption tests showed an over fourfold increase in capacity upon modification. The kinetic parameters implied that adsorption on modified material followed the pseudo-second-order kinetic model. Different isotherm models were applied to experimental data, while the Sips isotherm model best describes the equilibrium of the adsorption process on the tested modified material. According to this isotherm model, the maximum achieved adsorption capacities of Cu(II), Zn(II), and Se(IV) were 48.21, 55.06, and 87.85 mg/g, respectively. The summarized experimental results revealed that the adsorption process of selected cations on modified OS was predominantly caused by chemisorption, while, in addition to chemisorption, electrostatic forces were also responsible for Se(IV) removal. Desorption test showed that the prepared material could be reused for at least 3 cycles, with minimal efficiency loss. Briefly, this study reinforces that DES-modified agro-waste biomass could be used as a promising adsorbent for cations and oxyanions from wastewater.",
publisher = "MDPI",
journal = "Processes",
title = "Ability of Deep Eutectic Solvent Modified Oat Straw for Cu(II), Zn(II), and Se(IV) Ions Removal",
number = "5",
pages = "1308",
volume = "11",
doi = "10.3390/pr11051308"
}

Dimitrijević, J., Jevtić, S., Marinković, A., Simić, M., Koprivica, M.,& Petrović, J.. (2023). Ability of Deep Eutectic Solvent Modified Oat Straw for Cu(II), Zn(II), and Se(IV) Ions Removal. in Processes
MDPI., 11(5), 1308.
https://doi.org/10.3390/pr11051308

Dimitrijević J, Jevtić S, Marinković A, Simić M, Koprivica M, Petrović J. Ability of Deep Eutectic Solvent Modified Oat Straw for Cu(II), Zn(II), and Se(IV) Ions Removal. in Processes. 2023;11(5):1308.
doi:10.3390/pr11051308 .

Dimitrijević, Jelena, Jevtić, Sanja, Marinković, Aleksandar, Simić, Marija, Koprivica, Marija, Petrović, Jelena, "Ability of Deep Eutectic Solvent Modified Oat Straw for Cu(II), Zn(II), and Se(IV) Ions Removal" in Processes, 11, no. 5 (2023):1308,
https://doi.org/10.3390/pr11051308 . .

TY  - JOUR
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Kalderis, Dimitrios
AU  - Koprivica, Marija
AU  - Milojković, Jelena
AU  - Radulović, Dragan
PY  - 2023
UR  - https://ritnms.itnms.ac.rs/handle/123456789/646
AB  - In this study, Mg-based pyro-hydrochars derived from waste grape pomace (Mg-GP), corn cob (Mg-CC), and Miscanthus x giganteus (Mg-MIS) were successfully prepared applying one-step hydrothermal carbonization followed by pyrolysis. The structural characteristics and surface analysis of the prepared materials were characterized by various techniques, while its adsorption ability was examined through remediation of methylene blue (MB) under batch adsorption experiments. The obtained results revealed that pyro-hydrochars are highly effective adsorbents of MB with achieved capacities of 289.65 mg g(-1), 262.30 mg g(-1), and 232.48 mg g(-1) for Mg-GP, Mg-CC and Mg-MIS, respectively. The binding of MB to the surface on either of the tested material was achieved by a complex mechanism that unifies electro-static interaction, hydrogen bonding, pi-pi interaction, surface complexation, and ion-exchange mechanism. The kinetic study display that the adsorption process onto used Mg-doped pyro-hydrochars is favorable and follows pseudo-second order kinetics, while the isotherm equilibriums were determined by Sips isotherm model. Tested materials can be effectively reused for at least 3 cycles, with minimal loss of efficiency. Overall, findings from this work promote Mg-doped pyro-hydrochars form different precursors as promising, sustainable, and efficient adsorbents of MB from polluted wastewaters.
PB  - Elsevier, Amsterdam
T2  - Journal of Molecular Liquids
T1  - Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism
VL  - 376
DO  - 10.1016/j.molliq.2023.121424
UR  - conv_965
ER  - 

@article{
author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Kalderis, Dimitrios and Koprivica, Marija and Milojković, Jelena and Radulović, Dragan",
year = "2023",
abstract = "In this study, Mg-based pyro-hydrochars derived from waste grape pomace (Mg-GP), corn cob (Mg-CC), and Miscanthus x giganteus (Mg-MIS) were successfully prepared applying one-step hydrothermal carbonization followed by pyrolysis. The structural characteristics and surface analysis of the prepared materials were characterized by various techniques, while its adsorption ability was examined through remediation of methylene blue (MB) under batch adsorption experiments. The obtained results revealed that pyro-hydrochars are highly effective adsorbents of MB with achieved capacities of 289.65 mg g(-1), 262.30 mg g(-1), and 232.48 mg g(-1) for Mg-GP, Mg-CC and Mg-MIS, respectively. The binding of MB to the surface on either of the tested material was achieved by a complex mechanism that unifies electro-static interaction, hydrogen bonding, pi-pi interaction, surface complexation, and ion-exchange mechanism. The kinetic study display that the adsorption process onto used Mg-doped pyro-hydrochars is favorable and follows pseudo-second order kinetics, while the isotherm equilibriums were determined by Sips isotherm model. Tested materials can be effectively reused for at least 3 cycles, with minimal loss of efficiency. Overall, findings from this work promote Mg-doped pyro-hydrochars form different precursors as promising, sustainable, and efficient adsorbents of MB from polluted wastewaters.",
publisher = "Elsevier, Amsterdam",
journal = "Journal of Molecular Liquids",
title = "Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism",
volume = "376",
doi = "10.1016/j.molliq.2023.121424",
url = "conv_965"
}

Petrović, J., Ercegović, M., Simić, M., Kalderis, D., Koprivica, M., Milojković, J.,& Radulović, D.. (2023). Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism. in Journal of Molecular Liquids
Elsevier, Amsterdam., 376.
https://doi.org/10.1016/j.molliq.2023.121424
conv_965

Petrović J, Ercegović M, Simić M, Kalderis D, Koprivica M, Milojković J, Radulović D. Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism. in Journal of Molecular Liquids. 2023;376.
doi:10.1016/j.molliq.2023.121424
conv_965 .

Petrović, Jelena, Ercegović, Marija, Simić, Marija, Kalderis, Dimitrios, Koprivica, Marija, Milojković, Jelena, Radulović, Dragan, "Novel Mg-doped pyro-hydrochars as methylene blue adsorbents: Adsorption behavior and mechanism" in Journal of Molecular Liquids, 376 (2023),
https://doi.org/10.1016/j.molliq.2023.121424 .,
conv_965 .

TY  - CONF
AU  - Simić, Marija
AU  - Petrović, Jelena
AU  - Šoštarić, Tatjana
AU  - Ercegović, Marija
AU  - Milojković, Jelena
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/869
AB  - U okviru ovog rada ispitana je mogućnost upotrebe agroindustrijskog otpada, oklaska kukuruza (OK) i kukuruzne svile (KS), za uklanjanje teških metala iz vodenih rastvora i uzoraka otpadne vode. Karakterizacija OK i KS vršena je hemijskom i elementalnom analizom, određivanjem kapaciteta katjonske izmene, SEM-EDX i FTIR spektroskopijom. U cilju poređenja adsorpcionog afiniteta ova dva materijal, eks- perimenti su rađeni u šaržnom sistemu. Maksimalni adsorpcioni kapaciteti OK za uklanjanje Pb(II), Cu(II) i Zn() jona iznosili su 0,027; 0,0413 i 0,019 mmol g respektivno, dok su maksimalni adsorpcioni kapaciteti KS za uklaljalje Pb(II) Cu() n() ona iznosili 0,400; 0,20 0,190 mmol g“, respektivno. Kako bi se is- i i pitala mogućnost upotrebe OK i KS za uklanjanje teških metala iz realnih otpadnih voda, ovi materijali su primenjeni u svrhu prečišćavanja otpadne vode atomskog apsorpcionog spektrofotometra. Oba ispitivana materijala su pokazala dobre adsorpcione karakteristike i afinitetu ka adsorpciji metala na svoju površinu a samim tim i njihovom uklanjanju iz otpadne vode. Rezultati prikazanu u ovoj studiji ukazuju na to da ispitani agroindustrijski otpadni materijali (OK i KS) mogu naći potencijalnu primenu kao adsorbensi u postrojenjima za prečišćavanje otpadnih voda.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22
T1  - Potencijalna upotreba agroindustrijskog otpada za uklanjanje teških metala iz otpadnih voda
EP  - 24
SP  - 19
ER  - 

@conference{
author = "Simić, Marija and Petrović, Jelena and Šoštarić, Tatjana and Ercegović, Marija and Milojković, Jelena and Koprivica, Marija and Dimitrijević, Jelena",
year = "2022",
abstract = "U okviru ovog rada ispitana je mogućnost upotrebe agroindustrijskog otpada, oklaska kukuruza (OK) i kukuruzne svile (KS), za uklanjanje teških metala iz vodenih rastvora i uzoraka otpadne vode. Karakterizacija OK i KS vršena je hemijskom i elementalnom analizom, određivanjem kapaciteta katjonske izmene, SEM-EDX i FTIR spektroskopijom. U cilju poređenja adsorpcionog afiniteta ova dva materijal, eks- perimenti su rađeni u šaržnom sistemu. Maksimalni adsorpcioni kapaciteti OK za uklanjanje Pb(II), Cu(II) i Zn() jona iznosili su 0,027; 0,0413 i 0,019 mmol g respektivno, dok su maksimalni adsorpcioni kapaciteti KS za uklaljalje Pb(II) Cu() n() ona iznosili 0,400; 0,20 0,190 mmol g“, respektivno. Kako bi se is- i i pitala mogućnost upotrebe OK i KS za uklanjanje teških metala iz realnih otpadnih voda, ovi materijali su primenjeni u svrhu prečišćavanja otpadne vode atomskog apsorpcionog spektrofotometra. Oba ispitivana materijala su pokazala dobre adsorpcione karakteristike i afinitetu ka adsorpciji metala na svoju površinu a samim tim i njihovom uklanjanju iz otpadne vode. Rezultati prikazanu u ovoj studiji ukazuju na to da ispitani agroindustrijski otpadni materijali (OK i KS) mogu naći potencijalnu primenu kao adsorbensi u postrojenjima za prečišćavanje otpadnih voda.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22",
title = "Potencijalna upotreba agroindustrijskog otpada za uklanjanje teških metala iz otpadnih voda",
pages = "24-19"
}

Simić, M., Petrović, J., Šoštarić, T., Ercegović, M., Milojković, J., Koprivica, M.,& Dimitrijević, J.. (2022). Potencijalna upotreba agroindustrijskog otpada za uklanjanje teških metala iz otpadnih voda. in 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22
Beograd : Savez inženjera i tehničara Srbije., 19-24.

Simić M, Petrović J, Šoštarić T, Ercegović M, Milojković J, Koprivica M, Dimitrijević J. Potencijalna upotreba agroindustrijskog otpada za uklanjanje teških metala iz otpadnih voda. in 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22. 2022;:19-24..

Simić, Marija, Petrović, Jelena, Šoštarić, Tatjana, Ercegović, Marija, Milojković, Jelena, Koprivica, Marija, Dimitrijević, Jelena, "Potencijalna upotreba agroindustrijskog otpada za uklanjanje teških metala iz otpadnih voda" in 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22 (2022):19-24.

TY  - CONF
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Ercegović, Marija
AU  - Koprivica, Marija
AU  - Kojić, Marija
AU  - Milojković, Jelena
AU  - Dimitrijević, Jelena
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/905
AB  - Poslednjih decenija, masovno iskorišćenje i eksploatacija fosilnih goriva dovodi do brojnih negatinih uticaja na životnu sredinu. Iz ovog razloga se se sve više teži ka implementaciji tehnologija koje bi omogućile proizvodnju biogoriva iz obnovljivih izvora. Hidrotermalna karbonizacija (HTC) je prepoznata kao jedna od visoko efikasnih i perspektivnih tehnologija za valorizaciju otpadne biomase kroz proizvodnju ugljeničnih materijala (hidročadi) široke upotrebne vrednosti. U okviru ovog rada komina grožđa je podvrgnuta HTC tretmanu na različitim temperaturama i izvršeno je ispitivanje gorivnih karakteristika dobijenih hidročadi. Rezultati su pokazali da sa porastom temperature karbonizacije rastu gornja i donja toplotna moć (od 20,40 do 26,78 MJ/kg i od 18,80 do 25,36 MJ/kg, redom), kao i energetska gustina u dobijenim hidročadima, dok istvoremeno atomski O/C i H/C odnosi, isparljive materije (sa 75,50 % na 61,22 %), i energetski prinos opadaju. Preliminarni rezultati ove studije sugerišu da dobijene hidroćadi pokazuju poboljšana gorivna svojstva u odnosu na kominu grožđa i da konverzija primenom HTC-a može biti korisna metoda za upravljanje otpadom i povrat energije iz otpadne biomase.
PB  - Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
C3  - 13. Simpozijum sa međunarodnim učešćem – Rudarstvo 22- Održivi razvoj u rudarstvu i energetici
T1  - Proizvodnja čvrstog biogoriva iz otpadne biomase postupkom hidrotermalne karbonizacije
EP  - 26
SP  - 23
ER  - 

@conference{
author = "Petrović, Jelena and Simić, Marija and Ercegović, Marija and Koprivica, Marija and Kojić, Marija and Milojković, Jelena and Dimitrijević, Jelena",
year = "2022",
abstract = "Poslednjih decenija, masovno iskorišćenje i eksploatacija fosilnih goriva dovodi do brojnih negatinih uticaja na životnu sredinu. Iz ovog razloga se se sve više teži ka implementaciji tehnologija koje bi omogućile proizvodnju biogoriva iz obnovljivih izvora. Hidrotermalna karbonizacija (HTC) je prepoznata kao jedna od visoko efikasnih i perspektivnih tehnologija za valorizaciju otpadne biomase kroz proizvodnju ugljeničnih materijala (hidročadi) široke upotrebne vrednosti. U okviru ovog rada komina grožđa je podvrgnuta HTC tretmanu na različitim temperaturama i izvršeno je ispitivanje gorivnih karakteristika dobijenih hidročadi. Rezultati su pokazali da sa porastom temperature karbonizacije rastu gornja i donja toplotna moć (od 20,40 do 26,78 MJ/kg i od 18,80 do 25,36 MJ/kg, redom), kao i energetska gustina u dobijenim hidročadima, dok istvoremeno atomski O/C i H/C odnosi, isparljive materije (sa 75,50 % na 61,22 %), i energetski prinos opadaju. Preliminarni rezultati ove studije sugerišu da dobijene hidroćadi pokazuju poboljšana gorivna svojstva u odnosu na kominu grožđa i da konverzija primenom HTC-a može biti korisna metoda za upravljanje otpadom i povrat energije iz otpadne biomase.",
publisher = "Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina",
journal = "13. Simpozijum sa međunarodnim učešćem – Rudarstvo 22- Održivi razvoj u rudarstvu i energetici",
title = "Proizvodnja čvrstog biogoriva iz otpadne biomase postupkom hidrotermalne karbonizacije",
pages = "26-23"
}

Petrović, J., Simić, M., Ercegović, M., Koprivica, M., Kojić, M., Milojković, J.,& Dimitrijević, J.. (2022). Proizvodnja čvrstog biogoriva iz otpadne biomase postupkom hidrotermalne karbonizacije. in 13. Simpozijum sa međunarodnim učešćem – Rudarstvo 22- Održivi razvoj u rudarstvu i energetici
Beograd : Institut za tehnologiju nuklearnih i drugih mineralnih sirovina., 23-26.

Petrović J, Simić M, Ercegović M, Koprivica M, Kojić M, Milojković J, Dimitrijević J. Proizvodnja čvrstog biogoriva iz otpadne biomase postupkom hidrotermalne karbonizacije. in 13. Simpozijum sa međunarodnim učešćem – Rudarstvo 22- Održivi razvoj u rudarstvu i energetici. 2022;:23-26..

Petrović, Jelena, Simić, Marija, Ercegović, Marija, Koprivica, Marija, Kojić, Marija, Milojković, Jelena, Dimitrijević, Jelena, "Proizvodnja čvrstog biogoriva iz otpadne biomase postupkom hidrotermalne karbonizacije" in 13. Simpozijum sa međunarodnim učešćem – Rudarstvo 22- Održivi razvoj u rudarstvu i energetici (2022):23-26.

TY  - CONF
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Kojić, Marija
AU  - Dimitrijević, Jelena
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/861
AB  - Background: Over the years, the mass utilization of fossil fuels causes numerous harmful effects on the
environment. Therefore, great attention is paid to the implementation of technologies that would enable
the production of biofuels from renewable sources. Hydrothermal carbonization (HTC) is recognized as
one of the highly efficient and promising technologies for the production of value-added materials from
wet and waste biomass.
Objective: The main goal of this study is the valorization of waste grape pomace (GP) using HTC
technology. Emphasis will be placed on the examination of the influence of process temperature on the
selected structural and fuel characteristics of the obtained solids (hydrochars).
Methods: For the preparation of hydrochars 10g of GP and 150 mL of ultrapure water were carbonized
using laboratory autoclave (Carl Roth, Model II). Carbonization was carried out at 180, 200, 220, 240
and 260 °C within 1 h. Obtained hydrochars (H180, H200, H220, H240 and H260) were separated from
process water, rinsed and dried to constant weight. Elemental content of solid` (C, H, N, S) was performed
using Vario EL III; C, H, N, S/O Elemental Analyzer, while O contents and HHV were calculated.
Results: Obtained results showed that carbonization temperature significantly influences the structural
characteristics of produced hydrochars. The C content was increased from 48.9% (GP), up to 69.9%
(H260) with the temperature increase, while the content of other elements was decreased. Observed
changes in elemental composition are caused by dehydration and decarboxylation of biomass during the
HTC process. Additionally, the HHV of GP was 21.64 MJ/kg, while it was increased upon carbonization
up to 26.78 MJ/kg (H260).
Conclusion: Preliminary results of this study determined that implementation of HTC technology
improves fuel characteristics of GP and may represent a suitable route for the utilization of waste
biomass.
PB  - Coalesce Research Group
C3  - 3rd Online International Webinar on Renewable Energy and Sustainable Technologies
T1  - Hydrothermal carbonization of grape pomace-form waste to potential biofuel
EP  - 6
SP  - 6
ER  - 

@conference{
author = "Petrović, Jelena and Ercegović, Marija and Simić, Marija and Koprivica, Marija and Kojić, Marija and Dimitrijević, Jelena",
year = "2022",
abstract = "Background: Over the years, the mass utilization of fossil fuels causes numerous harmful effects on the
environment. Therefore, great attention is paid to the implementation of technologies that would enable
the production of biofuels from renewable sources. Hydrothermal carbonization (HTC) is recognized as
one of the highly efficient and promising technologies for the production of value-added materials from
wet and waste biomass.
Objective: The main goal of this study is the valorization of waste grape pomace (GP) using HTC
technology. Emphasis will be placed on the examination of the influence of process temperature on the
selected structural and fuel characteristics of the obtained solids (hydrochars).
Methods: For the preparation of hydrochars 10g of GP and 150 mL of ultrapure water were carbonized
using laboratory autoclave (Carl Roth, Model II). Carbonization was carried out at 180, 200, 220, 240
and 260 °C within 1 h. Obtained hydrochars (H180, H200, H220, H240 and H260) were separated from
process water, rinsed and dried to constant weight. Elemental content of solid` (C, H, N, S) was performed
using Vario EL III; C, H, N, S/O Elemental Analyzer, while O contents and HHV were calculated.
Results: Obtained results showed that carbonization temperature significantly influences the structural
characteristics of produced hydrochars. The C content was increased from 48.9% (GP), up to 69.9%
(H260) with the temperature increase, while the content of other elements was decreased. Observed
changes in elemental composition are caused by dehydration and decarboxylation of biomass during the
HTC process. Additionally, the HHV of GP was 21.64 MJ/kg, while it was increased upon carbonization
up to 26.78 MJ/kg (H260).
Conclusion: Preliminary results of this study determined that implementation of HTC technology
improves fuel characteristics of GP and may represent a suitable route for the utilization of waste
biomass.",
publisher = "Coalesce Research Group",
journal = "3rd Online International Webinar on Renewable Energy and Sustainable Technologies",
title = "Hydrothermal carbonization of grape pomace-form waste to potential biofuel",
pages = "6-6"
}

Petrović, J., Ercegović, M., Simić, M., Koprivica, M., Kojić, M.,& Dimitrijević, J.. (2022). Hydrothermal carbonization of grape pomace-form waste to potential biofuel. in 3rd Online International Webinar on Renewable Energy and Sustainable Technologies
Coalesce Research Group., 6-6.

Petrović J, Ercegović M, Simić M, Koprivica M, Kojić M, Dimitrijević J. Hydrothermal carbonization of grape pomace-form waste to potential biofuel. in 3rd Online International Webinar on Renewable Energy and Sustainable Technologies. 2022;:6-6..

Petrović, Jelena, Ercegović, Marija, Simić, Marija, Koprivica, Marija, Kojić, Marija, Dimitrijević, Jelena, "Hydrothermal carbonization of grape pomace-form waste to potential biofuel" in 3rd Online International Webinar on Renewable Energy and Sustainable Technologies (2022):6-6.

TY  - CONF
AU  - Ercegović, Marija
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Kojić, Marija
AU  - Kalderis, Dimitrios
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/906
AB  - Primenom zelene tehnologije hidrotermalne karbonizacije (HTC) vlažna tpadna biomasa može se efikasno konvertovati u hidročađ (HC), proizvod sličan uglju, odličnih adsorpcionih karakteristika. HC iako niže poroznosti u odnosu na omercijalne biougljeve, veoma su bogate reaktivnim kiseoničnim funkcionalnim rupama (KFG) koje imaju značajnu ulogu u adsorpciji neorganskih polutanata. Adsorpcija primenom HC miskantusa dobijene HTC-om na 180°S je ispitivana klanjanjem Cu+2, i NH4+ iz vodenih rastvora pri čemu su postignuti maksimalni apaciteti uklanjanja od 310 i 71 mg/g, respektivno. Da bi se dodatno poboljšala posobnost sorpcije teških metala, ispitivane su različite metode aktivacije sovršinske strukture HC. Alkalni tretman HC komine grožđa dobijene HTC-om na 20°S poboljšao je kapacitet uklanjanja Pb+2,Cd+2 i Cu+2 iz vodenog rastvora pet puta, a 137, 49.3 i 38.2 mg/g, respektivno. Kalcifikacijom HC supstrata za gajenje gljiva, obijene HTC-om na 200°S, dizajniran je nov adsorbent Sa-piro-HC za Pb+2 i Cd+2 297 mg/g i 131 mg/g, respektivno). Dobijanjem visoko efikasnih adsorbenata iz tpadne biomase primenom HTC, može se podstaći saniranje problema zagađenja vode, zemlje, i vazduha u Srbiji.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22
T1  - Valorizacija otpadne biomase za proizvodnju efikasnih adsorbenata teških metala hidrotermalnom karbonizacijom
EP  - 18
SP  - 13
ER  - 

@conference{
author = "Ercegović, Marija and Petrović, Jelena and Simić, Marija and Koprivica, Marija and Kojić, Marija and Kalderis, Dimitrios",
year = "2022",
abstract = "Primenom zelene tehnologije hidrotermalne karbonizacije (HTC) vlažna tpadna biomasa može se efikasno konvertovati u hidročađ (HC), proizvod sličan uglju, odličnih adsorpcionih karakteristika. HC iako niže poroznosti u odnosu na omercijalne biougljeve, veoma su bogate reaktivnim kiseoničnim funkcionalnim rupama (KFG) koje imaju značajnu ulogu u adsorpciji neorganskih polutanata. Adsorpcija primenom HC miskantusa dobijene HTC-om na 180°S je ispitivana klanjanjem Cu+2, i NH4+ iz vodenih rastvora pri čemu su postignuti maksimalni apaciteti uklanjanja od 310 i 71 mg/g, respektivno. Da bi se dodatno poboljšala posobnost sorpcije teških metala, ispitivane su različite metode aktivacije sovršinske strukture HC. Alkalni tretman HC komine grožđa dobijene HTC-om na 20°S poboljšao je kapacitet uklanjanja Pb+2,Cd+2 i Cu+2 iz vodenog rastvora pet puta, a 137, 49.3 i 38.2 mg/g, respektivno. Kalcifikacijom HC supstrata za gajenje gljiva, obijene HTC-om na 200°S, dizajniran je nov adsorbent Sa-piro-HC za Pb+2 i Cd+2 297 mg/g i 131 mg/g, respektivno). Dobijanjem visoko efikasnih adsorbenata iz tpadne biomase primenom HTC, može se podstaći saniranje problema zagađenja vode, zemlje, i vazduha u Srbiji.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22",
title = "Valorizacija otpadne biomase za proizvodnju efikasnih adsorbenata teških metala hidrotermalnom karbonizacijom",
pages = "18-13"
}

Ercegović, M., Petrović, J., Simić, M., Koprivica, M., Kojić, M.,& Kalderis, D.. (2022). Valorizacija otpadne biomase za proizvodnju efikasnih adsorbenata teških metala hidrotermalnom karbonizacijom. in 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22
Beograd : Savez inženjera i tehničara Srbije., 13-18.

Ercegović M, Petrović J, Simić M, Koprivica M, Kojić M, Kalderis D. Valorizacija otpadne biomase za proizvodnju efikasnih adsorbenata teških metala hidrotermalnom karbonizacijom. in 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22. 2022;:13-18..

Ercegović, Marija, Petrović, Jelena, Simić, Marija, Koprivica, Marija, Kojić, Marija, Kalderis, Dimitrios, "Valorizacija otpadne biomase za proizvodnju efikasnih adsorbenata teških metala hidrotermalnom karbonizacijom" in 43. Međunarodna konferencija VODOVOD I KANALIZACIJA '22 (2022):13-18.

TY  - JOUR
AU  - Koprivica, Marija
AU  - Milojković-Opsenica, Dušanka
AU  - Fotirić-Aksić, Milica
AU  - Dramicanin, Aleksandra
AU  - Lazarević, Kristina
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/636
AB  - The peach stones and kernels are easily available biowaste which could be useful for the extraction of nutritionally important compounds such as fatty acids. Except in industry, characterization of stones and kernels could be useful in pomology to describe different cultivars, and for selecting new parents in a breeding program. A total of 25 samples of stones and kernels from various peach cultivars that differed in origin and ripening time, but growing in the same climatic conditions, were characterized by fatty acids composition and physical properties. This work confirmed that unsaturated fatty acids (oleic and linoleic fatty acids) were the most represented in peach kernel oil and their content depended of peach genotype. Additionally, the fatty acids in combination with length, weight, and moisture of peach kernels could be used as a parameter of authenticity assessment. This research may contribute for the peach cultivar discrimination and recommendation of cultivars/genotypes with high kernel quality which could be used for the extractions of oil rich in unsaturated fatty acids and further use in food, pharmaceutical and cosmetic industry. Besides, selected cultivars could be used in breeding programs, for creating new genotypes for oil production.
PB  - Springer, New York
T2  - European Food Research and Technology
T1  - Fatty acids composition and physical properties of stones and kernels from different peach cultivars as biomarker of origin and ripening time
EP  - 2482
IS  - 10
SP  - 2471
VL  - 248
DO  - 10.1007/s00217-022-04062-3
UR  - conv_944
ER  - 

@article{
author = "Koprivica, Marija and Milojković-Opsenica, Dušanka and Fotirić-Aksić, Milica and Dramicanin, Aleksandra and Lazarević, Kristina",
year = "2022",
abstract = "The peach stones and kernels are easily available biowaste which could be useful for the extraction of nutritionally important compounds such as fatty acids. Except in industry, characterization of stones and kernels could be useful in pomology to describe different cultivars, and for selecting new parents in a breeding program. A total of 25 samples of stones and kernels from various peach cultivars that differed in origin and ripening time, but growing in the same climatic conditions, were characterized by fatty acids composition and physical properties. This work confirmed that unsaturated fatty acids (oleic and linoleic fatty acids) were the most represented in peach kernel oil and their content depended of peach genotype. Additionally, the fatty acids in combination with length, weight, and moisture of peach kernels could be used as a parameter of authenticity assessment. This research may contribute for the peach cultivar discrimination and recommendation of cultivars/genotypes with high kernel quality which could be used for the extractions of oil rich in unsaturated fatty acids and further use in food, pharmaceutical and cosmetic industry. Besides, selected cultivars could be used in breeding programs, for creating new genotypes for oil production.",
publisher = "Springer, New York",
journal = "European Food Research and Technology",
title = "Fatty acids composition and physical properties of stones and kernels from different peach cultivars as biomarker of origin and ripening time",
pages = "2482-2471",
number = "10",
volume = "248",
doi = "10.1007/s00217-022-04062-3",
url = "conv_944"
}

Koprivica, M., Milojković-Opsenica, D., Fotirić-Aksić, M., Dramicanin, A.,& Lazarević, K.. (2022). Fatty acids composition and physical properties of stones and kernels from different peach cultivars as biomarker of origin and ripening time. in European Food Research and Technology
Springer, New York., 248(10), 2471-2482.
https://doi.org/10.1007/s00217-022-04062-3
conv_944

Koprivica M, Milojković-Opsenica D, Fotirić-Aksić M, Dramicanin A, Lazarević K. Fatty acids composition and physical properties of stones and kernels from different peach cultivars as biomarker of origin and ripening time. in European Food Research and Technology. 2022;248(10):2471-2482.
doi:10.1007/s00217-022-04062-3
conv_944 .

Koprivica, Marija, Milojković-Opsenica, Dušanka, Fotirić-Aksić, Milica, Dramicanin, Aleksandra, Lazarević, Kristina, "Fatty acids composition and physical properties of stones and kernels from different peach cultivars as biomarker of origin and ripening time" in European Food Research and Technology, 248, no. 10 (2022):2471-2482,
https://doi.org/10.1007/s00217-022-04062-3 .,
conv_944 .

TY  - JOUR
AU  - Koprivica, Marija
AU  - Petrović, Jelena
AU  - Ercegović, Marija
AU  - Simić, Marija
AU  - Milojković, Jelena
AU  - Šoštarić, Tatjana
AU  - Dimitrijević, Jelena
PY  - 2022
UR  - https://ritnms.itnms.ac.rs/handle/123456789/22
AB  - The Paulownia leaves (PL) was used for the first time as feedstock for the potential production of novel carbon-rich materials applying hydrothermal carbonization (HTC) technology. The HTC is one of the suitable methods for converting biomass into high-value carbonaceous products that could replace existing fossil fuels or be used for some other application. In this study, hydrochars of PL were obtained at five different temperatures (180, 200, 220, 240, and 260 degrees C), and the influence of temperature on hydrochar structures was analyzed. Physicochemical composition, structural, and combustion properties were estimated for hydrochar efficient characterization. The results showed that tested hydrochars had lower moisture, volatiles, oxygen, and sulfur content compared to PL biomass. Also, the HTC process increases carbon content and created high-energy C-C bond structures in hydrochars which improved fuel ratio (FR), energy density (ED), higher heat value (HHV), and lower heating value (LHV). However, hydrochar mass yields were significantly low, which affected the lower heating value (EY). The spectroscopic and thermal analysis confirmed the formation of new aromatic structures in hydrochars and enhancement of their thermal stability and combustion ability, respectively. Before hydrochar practice, in order to enhance their mass yields, it is necessary to further analyze the influence of the HTC parameters or hydrothermal co-carbonization with other biomass should be taken into concern. The results showed that HTC could be an efficient method to improve the combustion properties of PL biomass.
PB  - Springer Heidelberg, Heidelberg
T2  - Biomass Conversion and Biorefinery
T1  - Improvement of combustible characteristics of Paulownia leaves via hydrothermal carbonization
DO  - 10.1007/s13399-022-02619-6
UR  - conv_939
ER  - 

@article{
author = "Koprivica, Marija and Petrović, Jelena and Ercegović, Marija and Simić, Marija and Milojković, Jelena and Šoštarić, Tatjana and Dimitrijević, Jelena",
year = "2022",
abstract = "The Paulownia leaves (PL) was used for the first time as feedstock for the potential production of novel carbon-rich materials applying hydrothermal carbonization (HTC) technology. The HTC is one of the suitable methods for converting biomass into high-value carbonaceous products that could replace existing fossil fuels or be used for some other application. In this study, hydrochars of PL were obtained at five different temperatures (180, 200, 220, 240, and 260 degrees C), and the influence of temperature on hydrochar structures was analyzed. Physicochemical composition, structural, and combustion properties were estimated for hydrochar efficient characterization. The results showed that tested hydrochars had lower moisture, volatiles, oxygen, and sulfur content compared to PL biomass. Also, the HTC process increases carbon content and created high-energy C-C bond structures in hydrochars which improved fuel ratio (FR), energy density (ED), higher heat value (HHV), and lower heating value (LHV). However, hydrochar mass yields were significantly low, which affected the lower heating value (EY). The spectroscopic and thermal analysis confirmed the formation of new aromatic structures in hydrochars and enhancement of their thermal stability and combustion ability, respectively. Before hydrochar practice, in order to enhance their mass yields, it is necessary to further analyze the influence of the HTC parameters or hydrothermal co-carbonization with other biomass should be taken into concern. The results showed that HTC could be an efficient method to improve the combustion properties of PL biomass.",
publisher = "Springer Heidelberg, Heidelberg",
journal = "Biomass Conversion and Biorefinery",
title = "Improvement of combustible characteristics of Paulownia leaves via hydrothermal carbonization",
doi = "10.1007/s13399-022-02619-6",
url = "conv_939"
}

Koprivica, M., Petrović, J., Ercegović, M., Simić, M., Milojković, J., Šoštarić, T.,& Dimitrijević, J.. (2022). Improvement of combustible characteristics of Paulownia leaves via hydrothermal carbonization. in Biomass Conversion and Biorefinery
Springer Heidelberg, Heidelberg..
https://doi.org/10.1007/s13399-022-02619-6
conv_939

Koprivica M, Petrović J, Ercegović M, Simić M, Milojković J, Šoštarić T, Dimitrijević J. Improvement of combustible characteristics of Paulownia leaves via hydrothermal carbonization. in Biomass Conversion and Biorefinery. 2022;.
doi:10.1007/s13399-022-02619-6
conv_939 .

Koprivica, Marija, Petrović, Jelena, Ercegović, Marija, Simić, Marija, Milojković, Jelena, Šoštarić, Tatjana, Dimitrijević, Jelena, "Improvement of combustible characteristics of Paulownia leaves via hydrothermal carbonization" in Biomass Conversion and Biorefinery (2022),
https://doi.org/10.1007/s13399-022-02619-6 .,
conv_939 .

TY  - CONF
AU  - Dimitrijević, Jelena
AU  - Jevtić, Sanja
AU  - Petrović, Jelena
AU  - Koprivica, Marija
AU  - Kovačina, Jovanka
AU  - Marinković, Aleksandar
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/874
AB  - U ovom radu proučavana je primena adsorbenasa na bazi modifikovanog
sintetskog zeolita - mordenita za uklanjanje jona Cu 2+ i Pb 2+ iz vodenih rastvora. U
cilju poboljšavanja njegovih adsorpcionih svojstava zeolit je modifikovan
korišćenjem (3-aminopropil)trietoksisilana. Preliminarni rezultati pokazali su da
modifikovani mordenit postiže adsorpcioni kapacitet od 21,0 i 63,2 mg/g za Cu 2+ i
Pb 2+ , redom. Adsorpcija oba jona prati kinetiku modela pseudo-drugog reda. Ovaj
model podrazumeva hemijsku interakciju između jona metala i funkcionalnih
grupa na površini silanizovanog mordenita. Dobijeni rezultati ukazuju da je
mordenit modifikovan silanima pogodan adsorbens za potencijalno uklanjanje
jona teških metala iz otpadnih voda.
PB  - Beograd : Srpsko društvo za zaštitu voda
C3  - Voda2021
T1  - Modifikovani sintetski zeolit - mordenit kao adsorbens Cu 2+ i Pb 2+ jona iz vodenih rastvora
EP  - 358
SP  - 353
ER  - 

@conference{
author = "Dimitrijević, Jelena and Jevtić, Sanja and Petrović, Jelena and Koprivica, Marija and Kovačina, Jovanka and Marinković, Aleksandar",
year = "2021",
abstract = "U ovom radu proučavana je primena adsorbenasa na bazi modifikovanog
sintetskog zeolita - mordenita za uklanjanje jona Cu 2+ i Pb 2+ iz vodenih rastvora. U
cilju poboljšavanja njegovih adsorpcionih svojstava zeolit je modifikovan
korišćenjem (3-aminopropil)trietoksisilana. Preliminarni rezultati pokazali su da
modifikovani mordenit postiže adsorpcioni kapacitet od 21,0 i 63,2 mg/g za Cu 2+ i
Pb 2+ , redom. Adsorpcija oba jona prati kinetiku modela pseudo-drugog reda. Ovaj
model podrazumeva hemijsku interakciju između jona metala i funkcionalnih
grupa na površini silanizovanog mordenita. Dobijeni rezultati ukazuju da je
mordenit modifikovan silanima pogodan adsorbens za potencijalno uklanjanje
jona teških metala iz otpadnih voda.",
publisher = "Beograd : Srpsko društvo za zaštitu voda",
journal = "Voda2021",
title = "Modifikovani sintetski zeolit - mordenit kao adsorbens Cu 2+ i Pb 2+ jona iz vodenih rastvora",
pages = "358-353"
}

Dimitrijević, J., Jevtić, S., Petrović, J., Koprivica, M., Kovačina, J.,& Marinković, A.. (2021). Modifikovani sintetski zeolit - mordenit kao adsorbens Cu 2+ i Pb 2+ jona iz vodenih rastvora. in Voda2021
Beograd : Srpsko društvo za zaštitu voda., 353-358.

Dimitrijević J, Jevtić S, Petrović J, Koprivica M, Kovačina J, Marinković A. Modifikovani sintetski zeolit - mordenit kao adsorbens Cu 2+ i Pb 2+ jona iz vodenih rastvora. in Voda2021. 2021;:353-358..

Dimitrijević, Jelena, Jevtić, Sanja, Petrović, Jelena, Koprivica, Marija, Kovačina, Jovanka, Marinković, Aleksandar, "Modifikovani sintetski zeolit - mordenit kao adsorbens Cu 2+ i Pb 2+ jona iz vodenih rastvora" in Voda2021 (2021):353-358.

TY  - CONF
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Mihajlović, Marija
AU  - Koprivica, Marija
AU  - Kojić, Marija
AU  - Nuić, Ivona
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/858
AB  - "
In recent decades, the massive exploitation of fossil fuels, with a detrimental impact on the environment, caused a growing demand for the production of energies from renewable sources. One of the researchers' solutions was the application of waste biomass, but there are many disadvantages of its direct utilization, that include high moisture content, low energy content, high volatiles content, etc. In order to overcome these disadvantages, attention has been focused toward development of technologies for conversion of biomass into a multi-functional products. Hydrothermal carbonization (HTC) has recognized as highly effective technology for production of carbon rich material, hydrochar, from wet and waste biomass. Hydrochar possess a great potential for application as an energy source, for environmental protection, in agriculture. In this paper, three selected biomasses (corn cob (CC), Paulownia leafs (PL) and olive pomace (OP)) were hydrothermally carbonized at different temperatures (180, 220 and 260°C). The main goal of this study was to examine the influence of temperature on the structure and fuel characteristics of the obtained products and to compare it with the precursor. The results showed that the solid yiels decreases significantly with increasing temperature in all samples. On the other hand, C content increase upon temperature increment and reach the highest values in hydrochars obtained at 260°C (69.30% for CC, 64.54% for PL and 70.97% for OP). Also, a decrease in O/C and H/C atomic ratios with increasing temperature was observed. The results are shown in the Van Krevelen diagram, which reveals the transformation of precursors during carbonization from the biomass to the lignite region. Furthermore, with decrease of O/C and H/C ratio, higher heating value (HHV) was increasing and reaches the maximum values for hydrochars prepared at 260°C (27.33 MJ/kg for CC, 28.06 MJ/kg for PL and 30.55 MJ/kg for OP). The same trend is noticeable with ED contents. Also, the content of volatile matter (VM) was determined in all samples. VM decreases (from 90.45 to 55.42% for CC, from 76.70 to 62.10% for PL, from 82.86 to 66.77% for OP) with temperature contributes to less evaporation and pollutant emission during direct combustion. According to results, can be concluded that temperature has a great influence on the structure and characteristics of the obtained products, that dehydration and decarboxylation during HTC provoke intensive biomass carbonization and that hydrochars obtained at higher temperatures have significantly enhanced fuel properties and less volatiles compared to the biomass."
PB  - Zvornik : University of East Sarajevo, Faculty of Technology
C3  - VII International Congress “Engineering, Environment and Materials in Process Industry“
T1  - Upgrading of a fuel potential of waste biomass via hydrothermal carbonization
EP  - 76
SP  - 76
ER  - 

@conference{
author = "Petrović, Jelena and Simić, Marija and Mihajlović, Marija and Koprivica, Marija and Kojić, Marija and Nuić, Ivona",
year = "2021",
abstract = ""
In recent decades, the massive exploitation of fossil fuels, with a detrimental impact on the environment, caused a growing demand for the production of energies from renewable sources. One of the researchers' solutions was the application of waste biomass, but there are many disadvantages of its direct utilization, that include high moisture content, low energy content, high volatiles content, etc. In order to overcome these disadvantages, attention has been focused toward development of technologies for conversion of biomass into a multi-functional products. Hydrothermal carbonization (HTC) has recognized as highly effective technology for production of carbon rich material, hydrochar, from wet and waste biomass. Hydrochar possess a great potential for application as an energy source, for environmental protection, in agriculture. In this paper, three selected biomasses (corn cob (CC), Paulownia leafs (PL) and olive pomace (OP)) were hydrothermally carbonized at different temperatures (180, 220 and 260°C). The main goal of this study was to examine the influence of temperature on the structure and fuel characteristics of the obtained products and to compare it with the precursor. The results showed that the solid yiels decreases significantly with increasing temperature in all samples. On the other hand, C content increase upon temperature increment and reach the highest values in hydrochars obtained at 260°C (69.30% for CC, 64.54% for PL and 70.97% for OP). Also, a decrease in O/C and H/C atomic ratios with increasing temperature was observed. The results are shown in the Van Krevelen diagram, which reveals the transformation of precursors during carbonization from the biomass to the lignite region. Furthermore, with decrease of O/C and H/C ratio, higher heating value (HHV) was increasing and reaches the maximum values for hydrochars prepared at 260°C (27.33 MJ/kg for CC, 28.06 MJ/kg for PL and 30.55 MJ/kg for OP). The same trend is noticeable with ED contents. Also, the content of volatile matter (VM) was determined in all samples. VM decreases (from 90.45 to 55.42% for CC, from 76.70 to 62.10% for PL, from 82.86 to 66.77% for OP) with temperature contributes to less evaporation and pollutant emission during direct combustion. According to results, can be concluded that temperature has a great influence on the structure and characteristics of the obtained products, that dehydration and decarboxylation during HTC provoke intensive biomass carbonization and that hydrochars obtained at higher temperatures have significantly enhanced fuel properties and less volatiles compared to the biomass."",
publisher = "Zvornik : University of East Sarajevo, Faculty of Technology",
journal = "VII International Congress “Engineering, Environment and Materials in Process Industry“",
title = "Upgrading of a fuel potential of waste biomass via hydrothermal carbonization",
pages = "76-76"
}

Petrović, J., Simić, M., Mihajlović, M., Koprivica, M., Kojić, M.,& Nuić, I.. (2021). Upgrading of a fuel potential of waste biomass via hydrothermal carbonization. in VII International Congress “Engineering, Environment and Materials in Process Industry“
Zvornik : University of East Sarajevo, Faculty of Technology., 76-76.

Petrović J, Simić M, Mihajlović M, Koprivica M, Kojić M, Nuić I. Upgrading of a fuel potential of waste biomass via hydrothermal carbonization. in VII International Congress “Engineering, Environment and Materials in Process Industry“. 2021;:76-76..

Petrović, Jelena, Simić, Marija, Mihajlović, Marija, Koprivica, Marija, Kojić, Marija, Nuić, Ivona, "Upgrading of a fuel potential of waste biomass via hydrothermal carbonization" in VII International Congress “Engineering, Environment and Materials in Process Industry“ (2021):76-76.

TY  - JOUR
AU  - Simić, Marija
AU  - Petrović, Jelena
AU  - Šoštarić, Tatjana
AU  - Mihajlović, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
AU  - Milojković, Jelena
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/843
AB  - In this study, the minimization of heavy metal pollution was investigated. Accordingly, potential of corn silk as biosorbent of Pb, Zn and Cu from multimetal solution was considered in batch and fixed-bed column experiments. Structural changes of corn silk before and after heavy metal removal were determined using SEM-EDX and FTIR analyses. For investigation of biosorption performance the Langmuir and Freundlich isotherm models were applied at batch experimental results. Fast biosorption process and high adsorption capacity (0.382; 0.200 and 0.171 mmol g-1 for Pb2+, Cu2+ and Zn2+, respectively) confirmed that the corn silk is suitable for heavy metals removal. In order to produce a novel and improved column package for fixed-column bed study implementation, the corn silk was immobilized with alginate. The fixed-bed column was saturated with Pb-Cu-Zn multimetal solution. The breaktrought time is 95, 100 and 90 min for Pb2+, Cu2+ and Zn2+ respectively, where 87.5, 81.9 and 95.5% Pb2+, Cu2+ and Zn2+ was removed, respectively. Desorption sudy was performed in HNO3 (p.a.) solution where high desorption efficiency (>94%) confirmed that imobilized corn silk can be used as alternative material for metal adsorption and could be applied in purification systems.
PB  - International Research Journal of Pure & Applied Chemistry
T2  - International Research Journal of Pure & Applied Chemistry
T1  - Corn Silk as Biosorbent for Pb, Zn and Cu Removal: Batch and Fixed-bed Column Study
EP  - 11
IS  - 12
SP  - 1
VL  - 22
DO  - 10.9734/IRJPAC/2021/v22i1230447
ER  - 

@article{
author = "Simić, Marija and Petrović, Jelena and Šoštarić, Tatjana and Mihajlović, Marija and Koprivica, Marija and Dimitrijević, Jelena and Milojković, Jelena",
year = "2021",
abstract = "In this study, the minimization of heavy metal pollution was investigated. Accordingly, potential of corn silk as biosorbent of Pb, Zn and Cu from multimetal solution was considered in batch and fixed-bed column experiments. Structural changes of corn silk before and after heavy metal removal were determined using SEM-EDX and FTIR analyses. For investigation of biosorption performance the Langmuir and Freundlich isotherm models were applied at batch experimental results. Fast biosorption process and high adsorption capacity (0.382; 0.200 and 0.171 mmol g-1 for Pb2+, Cu2+ and Zn2+, respectively) confirmed that the corn silk is suitable for heavy metals removal. In order to produce a novel and improved column package for fixed-column bed study implementation, the corn silk was immobilized with alginate. The fixed-bed column was saturated with Pb-Cu-Zn multimetal solution. The breaktrought time is 95, 100 and 90 min for Pb2+, Cu2+ and Zn2+ respectively, where 87.5, 81.9 and 95.5% Pb2+, Cu2+ and Zn2+ was removed, respectively. Desorption sudy was performed in HNO3 (p.a.) solution where high desorption efficiency (>94%) confirmed that imobilized corn silk can be used as alternative material for metal adsorption and could be applied in purification systems.",
publisher = "International Research Journal of Pure & Applied Chemistry",
journal = "International Research Journal of Pure & Applied Chemistry",
title = "Corn Silk as Biosorbent for Pb, Zn and Cu Removal: Batch and Fixed-bed Column Study",
pages = "11-1",
number = "12",
volume = "22",
doi = "10.9734/IRJPAC/2021/v22i1230447"
}

Simić, M., Petrović, J., Šoštarić, T., Mihajlović, M., Koprivica, M., Dimitrijević, J.,& Milojković, J.. (2021). Corn Silk as Biosorbent for Pb, Zn and Cu Removal: Batch and Fixed-bed Column Study. in International Research Journal of Pure & Applied Chemistry
International Research Journal of Pure & Applied Chemistry., 22(12), 1-11.
https://doi.org/10.9734/IRJPAC/2021/v22i1230447

Simić M, Petrović J, Šoštarić T, Mihajlović M, Koprivica M, Dimitrijević J, Milojković J. Corn Silk as Biosorbent for Pb, Zn and Cu Removal: Batch and Fixed-bed Column Study. in International Research Journal of Pure & Applied Chemistry. 2021;22(12):1-11.
doi:10.9734/IRJPAC/2021/v22i1230447 .

Simić, Marija, Petrović, Jelena, Šoštarić, Tatjana, Mihajlović, Marija, Koprivica, Marija, Dimitrijević, Jelena, Milojković, Jelena, "Corn Silk as Biosorbent for Pb, Zn and Cu Removal: Batch and Fixed-bed Column Study" in International Research Journal of Pure & Applied Chemistry, 22, no. 12 (2021):1-11,
https://doi.org/10.9734/IRJPAC/2021/v22i1230447 . .

TY  - CONF
AU  - Petrović, Jelena
AU  - Mihajlović, Marija
AU  - Simić, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
AU  - Milojković, Jelena
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/873
AB  - U okviru ove studije hidročađ komine grožđa ispitana je kao potencijalni adsorbens jona cinka i organskih boja iz vodenih rastvora. Hidročađ pripremljena hidrotermalnom karbonizacijom (HTC) na 20°S, je naknadno alkalno modifikovana v u cilju pospešenja njene sposobnost za uklanjanje ispitivanih polutanata. Pre liminarni adsorpcioni rezultati su pokazali da modifikovana hidročađ pokazuje nešto niži procenat uklanjanja mureksida (14,2%), dok su procenti uklanjanja za cink, metil-crveno i metil-ljubičasto znatno veći (80,68%, 46,53% i 51,23%, redom). Rezultati naše studije su pokazali da komina grožđa može biti razmatrana kom prekursor za proizvodnju efikasnih adsorbenasa primenom HTC procesa.
Ključne reči: hidrotermalna karbonizacija, komina grožđa, cink, organske tretman otpadne vode.
boje.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21
T1  - Modifikovana hidročađ komine grožđa kao potencijalni adsorbens jona cinka i organskih boja
EP  - 15
SP  - 12
ER  - 

@conference{
author = "Petrović, Jelena and Mihajlović, Marija and Simić, Marija and Koprivica, Marija and Dimitrijević, Jelena and Milojković, Jelena",
year = "2021",
abstract = "U okviru ove studije hidročađ komine grožđa ispitana je kao potencijalni adsorbens jona cinka i organskih boja iz vodenih rastvora. Hidročađ pripremljena hidrotermalnom karbonizacijom (HTC) na 20°S, je naknadno alkalno modifikovana v u cilju pospešenja njene sposobnost za uklanjanje ispitivanih polutanata. Pre liminarni adsorpcioni rezultati su pokazali da modifikovana hidročađ pokazuje nešto niži procenat uklanjanja mureksida (14,2%), dok su procenti uklanjanja za cink, metil-crveno i metil-ljubičasto znatno veći (80,68%, 46,53% i 51,23%, redom). Rezultati naše studije su pokazali da komina grožđa može biti razmatrana kom prekursor za proizvodnju efikasnih adsorbenasa primenom HTC procesa.
Ključne reči: hidrotermalna karbonizacija, komina grožđa, cink, organske tretman otpadne vode.
boje.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21",
title = "Modifikovana hidročađ komine grožđa kao potencijalni adsorbens jona cinka i organskih boja",
pages = "15-12"
}

Petrović, J., Mihajlović, M., Simić, M., Koprivica, M., Dimitrijević, J.,& Milojković, J.. (2021). Modifikovana hidročađ komine grožđa kao potencijalni adsorbens jona cinka i organskih boja. in 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21
Beograd : Savez inženjera i tehničara Srbije., 12-15.

Petrović J, Mihajlović M, Simić M, Koprivica M, Dimitrijević J, Milojković J. Modifikovana hidročađ komine grožđa kao potencijalni adsorbens jona cinka i organskih boja. in 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21. 2021;:12-15..

Petrović, Jelena, Mihajlović, Marija, Simić, Marija, Koprivica, Marija, Dimitrijević, Jelena, Milojković, Jelena, "Modifikovana hidročađ komine grožđa kao potencijalni adsorbens jona cinka i organskih boja" in 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21 (2021):12-15.

TY  - CONF
AU  - Koprivica, Marija
AU  - Mihajlović, Marija
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Šoštarić, Tatjana
AU  - Lopičić, Zorica
AU  - Dimitrijević, Jelena
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/870
AB  - Adsorpcija predstavlja korisnu metodu za uklanjanje zagađivača rastvorenih u vodi. U drvnoj industriji, list paulovnije je bio-otpad koji se dalje može iskoristiti kao biosorbent ili kao izvor za efikasne adsorpcione proizvode. List paulovnije i njegove hidročađi dobijene hidrotermalnom karbonizacijom na tempe- raturama 180, 200 i 220°S su proučavani kao potencijalni adsorbenti jona bakra iz vodenih rastvora. U preliminarnim adsorbcionim testovima je primećeno da je list bez prethodnog tretmana bio efikasniji adsorbent nego njegove hidročađi (qPL=14,75 mg/g; EpL=48,44%). Kinetika adsorbcije korišćenjem lista sledila je model pseudo- drugog reda (R2=0,9984), koji podrazumeva da brzinu procesa kontroliše hemijska adsorpcija.
PB  - Beograd : Savez inženjera i tehničara Srbije
C3  - 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21
T1  - List paulovnije i njegove hidročađi kao potencijalni adsorbenti za uklanjanje jona bakra iz vodenih rastvora
EP  - 15
SP  - 12
ER  - 

@conference{
author = "Koprivica, Marija and Mihajlović, Marija and Petrović, Jelena and Simić, Marija and Šoštarić, Tatjana and Lopičić, Zorica and Dimitrijević, Jelena",
year = "2021",
abstract = "Adsorpcija predstavlja korisnu metodu za uklanjanje zagađivača rastvorenih u vodi. U drvnoj industriji, list paulovnije je bio-otpad koji se dalje može iskoristiti kao biosorbent ili kao izvor za efikasne adsorpcione proizvode. List paulovnije i njegove hidročađi dobijene hidrotermalnom karbonizacijom na tempe- raturama 180, 200 i 220°S su proučavani kao potencijalni adsorbenti jona bakra iz vodenih rastvora. U preliminarnim adsorbcionim testovima je primećeno da je list bez prethodnog tretmana bio efikasniji adsorbent nego njegove hidročađi (qPL=14,75 mg/g; EpL=48,44%). Kinetika adsorbcije korišćenjem lista sledila je model pseudo- drugog reda (R2=0,9984), koji podrazumeva da brzinu procesa kontroliše hemijska adsorpcija.",
publisher = "Beograd : Savez inženjera i tehničara Srbije",
journal = "42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21",
title = "List paulovnije i njegove hidročađi kao potencijalni adsorbenti za uklanjanje jona bakra iz vodenih rastvora",
pages = "15-12"
}

Koprivica, M., Mihajlović, M., Petrović, J., Simić, M., Šoštarić, T., Lopičić, Z.,& Dimitrijević, J.. (2021). List paulovnije i njegove hidročađi kao potencijalni adsorbenti za uklanjanje jona bakra iz vodenih rastvora. in 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21
Beograd : Savez inženjera i tehničara Srbije., 12-15.

Koprivica M, Mihajlović M, Petrović J, Simić M, Šoštarić T, Lopičić Z, Dimitrijević J. List paulovnije i njegove hidročađi kao potencijalni adsorbenti za uklanjanje jona bakra iz vodenih rastvora. in 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21. 2021;:12-15..

Koprivica, Marija, Mihajlović, Marija, Petrović, Jelena, Simić, Marija, Šoštarić, Tatjana, Lopičić, Zorica, Dimitrijević, Jelena, "List paulovnije i njegove hidročađi kao potencijalni adsorbenti za uklanjanje jona bakra iz vodenih rastvora" in 42. Međunarodna konferencija VODOVOD I KANALIZACIJA '21 (2021):12-15.

TY  - CONF
AU  - Lopičić, Zorica
AU  - Milojković, Jelena
AU  - Šoštarić, Tatjana
AU  - Antanasković, Anja
AU  - Koprivica, Marija
AU  - Adamović, Vladimir
AU  - Mitić, Linda
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/1204
AB  - Fruit processing industries generate millions of tons of
organic waste annually, often improperly disposed of at
open landfills. Based on the circular economy and waste
management concepts, reusing these bio-waste materials
is one of the future sustainable demands. Furthermore,
recent investigations have shown that this material type
can be reused as high-quality sorbents, with certain
modifications that should be applied. Considering this,
we have investigated the possible application of lignocellulosic
waste-peach stones (Prunus Persica L.),
immobilized in sodium alginate, as heavy metals sorbent.
The immobilized particles (IPS) were utilized to
remove metals from synthetic water solutions. Among
all metals (Pb, Cu, Cd, and Zn), IPS has shown superior
performance in Pb removal, governing further investigations.
Dried IPS spheres were characterized by FTIR,
SEM/EDX, and TG techniques. The batch reaction system
investigated the effects of the contact time, initial
Pb concentration, and mass-to-volume ratio. Optimized
operational parameters were used in kinetic and isotherm
studies. Obtained data were modeled using a
nonlinear form of pseudo-first, pseudo-second, Elovich,
Freundlich, and Langmuir equations. The results showed
pseudo-second-order kinetics with Freundlich isotherm
fitting Pb removal, indicating a heterogeneous IPS surface
with the multilayer adsorption and adsorbed molecule
interaction. As obtained from Langmuir isotherm,
IPS particles have removed Pb by saturation capacity of80.40 mg Pb/g. These preliminary results indicate that
IPS can be applied to purify waters contaminated with
lead metal.
PB  - Springer
C3  - Advances in Science, Technology & Innovation, Proceedings of the 1st MedGU
T1  - Lead Removal from Water Solutions Using Alginate-Immobilized Peach Stone Particles
EP  - 36
SP  - 33
VL  - 4
DO  - 10.1007/978-3-031-42917-0
ER  - 

@conference{
author = "Lopičić, Zorica and Milojković, Jelena and Šoštarić, Tatjana and Antanasković, Anja and Koprivica, Marija and Adamović, Vladimir and Mitić, Linda",
year = "2021",
abstract = "Fruit processing industries generate millions of tons of
organic waste annually, often improperly disposed of at
open landfills. Based on the circular economy and waste
management concepts, reusing these bio-waste materials
is one of the future sustainable demands. Furthermore,
recent investigations have shown that this material type
can be reused as high-quality sorbents, with certain
modifications that should be applied. Considering this,
we have investigated the possible application of lignocellulosic
waste-peach stones (Prunus Persica L.),
immobilized in sodium alginate, as heavy metals sorbent.
The immobilized particles (IPS) were utilized to
remove metals from synthetic water solutions. Among
all metals (Pb, Cu, Cd, and Zn), IPS has shown superior
performance in Pb removal, governing further investigations.
Dried IPS spheres were characterized by FTIR,
SEM/EDX, and TG techniques. The batch reaction system
investigated the effects of the contact time, initial
Pb concentration, and mass-to-volume ratio. Optimized
operational parameters were used in kinetic and isotherm
studies. Obtained data were modeled using a
nonlinear form of pseudo-first, pseudo-second, Elovich,
Freundlich, and Langmuir equations. The results showed
pseudo-second-order kinetics with Freundlich isotherm
fitting Pb removal, indicating a heterogeneous IPS surface
with the multilayer adsorption and adsorbed molecule
interaction. As obtained from Langmuir isotherm,
IPS particles have removed Pb by saturation capacity of80.40 mg Pb/g. These preliminary results indicate that
IPS can be applied to purify waters contaminated with
lead metal.",
publisher = "Springer",
journal = "Advances in Science, Technology & Innovation, Proceedings of the 1st MedGU",
title = "Lead Removal from Water Solutions Using Alginate-Immobilized Peach Stone Particles",
pages = "36-33",
volume = "4",
doi = "10.1007/978-3-031-42917-0"
}

Lopičić, Z., Milojković, J., Šoštarić, T., Antanasković, A., Koprivica, M., Adamović, V.,& Mitić, L.. (2021). Lead Removal from Water Solutions Using Alginate-Immobilized Peach Stone Particles. in Advances in Science, Technology & Innovation, Proceedings of the 1st MedGU
Springer., 4, 33-36.
https://doi.org/10.1007/978-3-031-42917-0

Lopičić Z, Milojković J, Šoštarić T, Antanasković A, Koprivica M, Adamović V, Mitić L. Lead Removal from Water Solutions Using Alginate-Immobilized Peach Stone Particles. in Advances in Science, Technology & Innovation, Proceedings of the 1st MedGU. 2021;4:33-36.
doi:10.1007/978-3-031-42917-0 .

Lopičić, Zorica, Milojković, Jelena, Šoštarić, Tatjana, Antanasković, Anja, Koprivica, Marija, Adamović, Vladimir, Mitić, Linda, "Lead Removal from Water Solutions Using Alginate-Immobilized Peach Stone Particles" in Advances in Science, Technology & Innovation, Proceedings of the 1st MedGU, 4 (2021):33-36,
https://doi.org/10.1007/978-3-031-42917-0 . .

TY  - CONF
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Mihajlović, Marija
AU  - Koprivica, Marija
AU  - Dimitrijević, Jelena
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/859
AB  - Within this study, the potential application of grape pomace hydrochar as a potential adsorbent of lead ions from aqueous
solutions will be investigated for the first time. For preparation of hydrochar, the grape pomace was hydrothermally carbonized in aqueous medium at 220 °C within 1 h. Obtained material was further modified with Mg and Fe salts in order to improve its adsorption properties. Preliminary adsorption results showed that the modified hydrochar exhibited significantly higher adsorption capacity (139.5 mg g-1) compared to the unmodified one (27.8 mg g-1). Further examination of the effects of different adsorption parameters (initial pH value and contact time) using modified and unmodified hydrochar, defined
their optimum values for the most effective lead removal. The obtained results showed that the most efficient removal of lead ions occurs in solutions with pH 5. Furthermore, the examination of the influence of time on the adsorption processdemonstrated that in the beginning the adsorption takes place quickly. The reason for this is the large number of availableactive centres on the hydrochar surface that can bind lead ions. However, as the number of these centres is occupied by a longer contact time, the binding rate decreases and after 240 minutes the equilibrium is reached. Kinetic models of pseudo-first and pseudo-second order were applied to the results of the influence of contact time. The kinetic study implied that the removal of lead ions on modified hydrochars follows pseudo-second order model. This model assumes a chemical interaction between
lead ions and groups on the surface of hydrochar as the main binding mechanism. Based on the above it can be concluded thatthe hydrothermal carbonization is very efficient technology for conversion of waste biomass into highly valuable products. In order to examine in more detail the binding mechanism and the process of metal adsorption using modified hydrochars, additional analyzes will be part of our future research.
PB  - Magnus Group
C3  - 9th Edition of International Conference on Catalysis, Chemical Engineering and Technology
T1  - Efficient adsorption of lead ions from aqueous solution using Fe/Mg modified grape pomace hydrochar
EP  - 51
SP  - 51
ER  - 

@conference{
author = "Petrović, Jelena and Simić, Marija and Mihajlović, Marija and Koprivica, Marija and Dimitrijević, Jelena",
year = "2021",
abstract = "Within this study, the potential application of grape pomace hydrochar as a potential adsorbent of lead ions from aqueous
solutions will be investigated for the first time. For preparation of hydrochar, the grape pomace was hydrothermally carbonized in aqueous medium at 220 °C within 1 h. Obtained material was further modified with Mg and Fe salts in order to improve its adsorption properties. Preliminary adsorption results showed that the modified hydrochar exhibited significantly higher adsorption capacity (139.5 mg g-1) compared to the unmodified one (27.8 mg g-1). Further examination of the effects of different adsorption parameters (initial pH value and contact time) using modified and unmodified hydrochar, defined
their optimum values for the most effective lead removal. The obtained results showed that the most efficient removal of lead ions occurs in solutions with pH 5. Furthermore, the examination of the influence of time on the adsorption processdemonstrated that in the beginning the adsorption takes place quickly. The reason for this is the large number of availableactive centres on the hydrochar surface that can bind lead ions. However, as the number of these centres is occupied by a longer contact time, the binding rate decreases and after 240 minutes the equilibrium is reached. Kinetic models of pseudo-first and pseudo-second order were applied to the results of the influence of contact time. The kinetic study implied that the removal of lead ions on modified hydrochars follows pseudo-second order model. This model assumes a chemical interaction between
lead ions and groups on the surface of hydrochar as the main binding mechanism. Based on the above it can be concluded thatthe hydrothermal carbonization is very efficient technology for conversion of waste biomass into highly valuable products. In order to examine in more detail the binding mechanism and the process of metal adsorption using modified hydrochars, additional analyzes will be part of our future research.",
publisher = "Magnus Group",
journal = "9th Edition of International Conference on Catalysis, Chemical Engineering and Technology",
title = "Efficient adsorption of lead ions from aqueous solution using Fe/Mg modified grape pomace hydrochar",
pages = "51-51"
}

Petrović, J., Simić, M., Mihajlović, M., Koprivica, M.,& Dimitrijević, J.. (2021). Efficient adsorption of lead ions from aqueous solution using Fe/Mg modified grape pomace hydrochar. in 9th Edition of International Conference on Catalysis, Chemical Engineering and Technology
Magnus Group., 51-51.

Petrović J, Simić M, Mihajlović M, Koprivica M, Dimitrijević J. Efficient adsorption of lead ions from aqueous solution using Fe/Mg modified grape pomace hydrochar. in 9th Edition of International Conference on Catalysis, Chemical Engineering and Technology. 2021;:51-51..

Petrović, Jelena, Simić, Marija, Mihajlović, Marija, Koprivica, Marija, Dimitrijević, Jelena, "Efficient adsorption of lead ions from aqueous solution using Fe/Mg modified grape pomace hydrochar" in 9th Edition of International Conference on Catalysis, Chemical Engineering and Technology (2021):51-51.

TY  - JOUR
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Mihajlović, Marija
AU  - Koprivica, Marija
AU  - Kojić, Marija
AU  - Nuić, Ivona
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/580
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Upgrading fuel potentials of waste biomass via hydrothermal carbonization (vol 75, pg 297, 2021)
EP  - 381
IS  - 6
SP  - 381
VL  - 75
DO  - 10.2298/HEMIND211227032P
UR  - conv_933
ER  - 

@article{
author = "Petrović, Jelena and Simić, Marija and Mihajlović, Marija and Koprivica, Marija and Kojić, Marija and Nuić, Ivona",
year = "2021",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Upgrading fuel potentials of waste biomass via hydrothermal carbonization (vol 75, pg 297, 2021)",
pages = "381-381",
number = "6",
volume = "75",
doi = "10.2298/HEMIND211227032P",
url = "conv_933"
}

Petrović, J., Simić, M., Mihajlović, M., Koprivica, M., Kojić, M.,& Nuić, I.. (2021). Upgrading fuel potentials of waste biomass via hydrothermal carbonization (vol 75, pg 297, 2021). in Hemijska industrija
Savez hemijskih inženjera, Beograd., 75(6), 381-381.
https://doi.org/10.2298/HEMIND211227032P
conv_933

Petrović J, Simić M, Mihajlović M, Koprivica M, Kojić M, Nuić I. Upgrading fuel potentials of waste biomass via hydrothermal carbonization (vol 75, pg 297, 2021). in Hemijska industrija. 2021;75(6):381-381.
doi:10.2298/HEMIND211227032P
conv_933 .

Petrović, Jelena, Simić, Marija, Mihajlović, Marija, Koprivica, Marija, Kojić, Marija, Nuić, Ivona, "Upgrading fuel potentials of waste biomass via hydrothermal carbonization (vol 75, pg 297, 2021)" in Hemijska industrija, 75, no. 6 (2021):381-381,
https://doi.org/10.2298/HEMIND211227032P .,
conv_933 .

TY  - JOUR
AU  - Petrović, Jelena
AU  - Simić, Marija
AU  - Mihajlović, Marija
AU  - Koprivica, Marija
AU  - Kojić, Marija
AU  - Nuić, Ivona
PY  - 2021
UR  - https://ritnms.itnms.ac.rs/handle/123456789/574
AB  - In recent decades, massive exploitation of fossil fuels caused a growing demand for the production of energies from renewable sources. Hydrochar obtained from waste biomass via hydrothermal carbonization (HTC) possesses good potentials as a biofuel. Therefore, we performed HTC of corn cob, paulownia leaves, and olive pomace at different temperatures (180, 220, and 260 degrees C). The main goal of this study was to comparatively evaluate the influence of HTC conditions on the structure and fuel characteristics of the obtained solids. The results showed that the yields of hydrochar decrease significantly with increasing temperature in all samples. The carbon content and higher heating value increased and reached the highest values in hydrochars obtained at 260 degrees C, while the content of volatile matter decreased. Furthermore, the Van Krevelen diagram reveals that the transformation of feedstock to lignite-like products upon HTC was achieved. In this study, the results showed that processes of dehydration and decarboxylation during HTC provoke intensive biomass transformation and that hydrochars obtained at higher temperatures have significantly enhanced fuel properties and fewer volatiles compared to the feedstock.
PB  - Savez hemijskih inženjera, Beograd
T2  - Hemijska industrija
T1  - Upgrading fuel potentials of waste biomass via hydrothermal carbonization
EP  - 305
IS  - 5
SP  - 297
VL  - 75
DO  - 10.2298/HEMIND210507025P
UR  - conv_923
ER  - 

@article{
author = "Petrović, Jelena and Simić, Marija and Mihajlović, Marija and Koprivica, Marija and Kojić, Marija and Nuić, Ivona",
year = "2021",
abstract = "In recent decades, massive exploitation of fossil fuels caused a growing demand for the production of energies from renewable sources. Hydrochar obtained from waste biomass via hydrothermal carbonization (HTC) possesses good potentials as a biofuel. Therefore, we performed HTC of corn cob, paulownia leaves, and olive pomace at different temperatures (180, 220, and 260 degrees C). The main goal of this study was to comparatively evaluate the influence of HTC conditions on the structure and fuel characteristics of the obtained solids. The results showed that the yields of hydrochar decrease significantly with increasing temperature in all samples. The carbon content and higher heating value increased and reached the highest values in hydrochars obtained at 260 degrees C, while the content of volatile matter decreased. Furthermore, the Van Krevelen diagram reveals that the transformation of feedstock to lignite-like products upon HTC was achieved. In this study, the results showed that processes of dehydration and decarboxylation during HTC provoke intensive biomass transformation and that hydrochars obtained at higher temperatures have significantly enhanced fuel properties and fewer volatiles compared to the feedstock.",
publisher = "Savez hemijskih inženjera, Beograd",
journal = "Hemijska industrija",
title = "Upgrading fuel potentials of waste biomass via hydrothermal carbonization",
pages = "305-297",
number = "5",
volume = "75",
doi = "10.2298/HEMIND210507025P",
url = "conv_923"
}

Petrović, J., Simić, M., Mihajlović, M., Koprivica, M., Kojić, M.,& Nuić, I.. (2021). Upgrading fuel potentials of waste biomass via hydrothermal carbonization. in Hemijska industrija
Savez hemijskih inženjera, Beograd., 75(5), 297-305.
https://doi.org/10.2298/HEMIND210507025P
conv_923

Petrović J, Simić M, Mihajlović M, Koprivica M, Kojić M, Nuić I. Upgrading fuel potentials of waste biomass via hydrothermal carbonization. in Hemijska industrija. 2021;75(5):297-305.
doi:10.2298/HEMIND210507025P
conv_923 .

Petrović, Jelena, Simić, Marija, Mihajlović, Marija, Koprivica, Marija, Kojić, Marija, Nuić, Ivona, "Upgrading fuel potentials of waste biomass via hydrothermal carbonization" in Hemijska industrija, 75, no. 5 (2021):297-305,
https://doi.org/10.2298/HEMIND210507025P .,
conv_923 .