TY  - JOUR
AU  - Mihajlović, Marija
AU  - Petrović, Jelena
AU  - Kragović, Milan
AU  - Stojanović, Mirjana
AU  - Milojković, Jelena
AU  - Lopičić, Zorica
AU  - Koprivica, Marija
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/848
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  - Niš : RAD Association
T2  - RAD Journal
T1  - Effect of KOH activation on hydrochar surface: FT-IR analysis
EP  - 67
IS  - 2
SP  - 65
VL  - 1
DO  - 10.21175/RadJ.2017.01.014
ER  - 

@article{
author = "Mihajlović, Marija and Petrović, Jelena and Kragović, Milan and Stojanović, Mirjana and Milojković, Jelena and Lopičić, Zorica and Koprivica, Marija",
year = "2016",
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 = "Niš : RAD Association",
journal = "RAD Journal",
title = "Effect of KOH activation on hydrochar surface: FT-IR analysis",
pages = "67-65",
number = "2",
volume = "1",
doi = "10.21175/RadJ.2017.01.014"
}

Mihajlović, M., Petrović, J., Kragović, M., Stojanović, M., Milojković, J., Lopičić, Z.,& Koprivica, M.. (2016). Effect of KOH activation on hydrochar surface: FT-IR analysis. in RAD Journal
Niš : RAD Association., 1(2), 65-67.
https://doi.org/10.21175/RadJ.2017.01.014

Mihajlović M, Petrović J, Kragović M, Stojanović M, Milojković J, Lopičić Z, Koprivica M. Effect of KOH activation on hydrochar surface: FT-IR analysis. in RAD Journal. 2016;1(2):65-67.
doi:10.21175/RadJ.2017.01.014 .

Mihajlović, Marija, Petrović, Jelena, Kragović, Milan, Stojanović, Mirjana, Milojković, Jelena, Lopičić, Zorica, Koprivica, Marija, "Effect of KOH activation on hydrochar surface: FT-IR analysis" in RAD Journal, 1, no. 2 (2016):65-67,
https://doi.org/10.21175/RadJ.2017.01.014 . .

TY  - CONF
AU  - Ugrina, Marin
AU  - Daković, Aleksandra
AU  - Vukojević Medvidović, Nediljka
AU  - Trgo, Marina
AU  - Stojanović, Mirjana
AU  - Kragović, Milan
AU  - Nuić, Ivona
AU  - Mihajlović, Marija
AU  - Marković, Marija
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/696
AB  - Maintaining of good quality of groundwater is of great public interest worldwide.
However, this source is highly vulnerable to different pollution sources such as
industry, mining, irrigation, and so on. The pollution problems are more often
observed in Karst areas where large amounts of fresh water can be contaminated in a
short time. The application of an in situ technique for remediation of contaminated
groundwater is highly recommended due to its simplicity of performance and
economic benefit. Among in situ techniques, the permeable reactive barrier is the
most attractive method as it allows for using different materials in the barrier for
remediation of contaminated groundwater. Materials for PBR must demonstrate
good contaminant binding properties, the ability of their retention, excellent
hydraulic properties, satisfactory mechanical properties for safe performance, and
ensure a smooth flow through the barrier without disturbing the natural flow.
Nowadays the research is focused on investigation of different natural materials to
protect the environment, due to their low cost and availability in nature in large
quantities. The purpose of this work is to investigate the efficacy of various natural
materials such as natural and iron-modified zeolite, apatite, concentrated apatite,
kaolin and raw bentonite to remove heavy metals (lead and cadmium) from
contaminated groundwater using the in situ PBR. The batch test involves sorption
experiments followed by leaching experiments. In sorption experiments, the
amounts of metal removal by different sorbents were evaluated for cadmium and
lead from simulated wastewater with similar initial metal concentrations. The
leaching experiment included evaluation of metal retained by the saturated sorbents
in ultrapure water with adjusted pH values at 2.98 and 6.07. Additionally, pH values
of solutions were recorded during both experiments. Based on obtained results, the
sorbents that provide the optimal metal removal and their retaining from the
contaminated groundwater were selected.
PB  - Zagreb : University of Zagreb, Faculty of Chemical Engineering and Technology
C3  - 4TH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL MANAGEMENT TOWARDS CIRCULAR ECONOMY
T1  - Selection of low-cost sorbents as a potential possible material for a permeable reactive barrier based on a batch study
EP  - 37
SP  - 37
ER  - 

@conference{
author = "Ugrina, Marin and Daković, Aleksandra and Vukojević Medvidović, Nediljka and Trgo, Marina and Stojanović, Mirjana and Kragović, Milan and Nuić, Ivona and Mihajlović, Marija and Marković, Marija",
year = "2016",
abstract = "Maintaining of good quality of groundwater is of great public interest worldwide.
However, this source is highly vulnerable to different pollution sources such as
industry, mining, irrigation, and so on. The pollution problems are more often
observed in Karst areas where large amounts of fresh water can be contaminated in a
short time. The application of an in situ technique for remediation of contaminated
groundwater is highly recommended due to its simplicity of performance and
economic benefit. Among in situ techniques, the permeable reactive barrier is the
most attractive method as it allows for using different materials in the barrier for
remediation of contaminated groundwater. Materials for PBR must demonstrate
good contaminant binding properties, the ability of their retention, excellent
hydraulic properties, satisfactory mechanical properties for safe performance, and
ensure a smooth flow through the barrier without disturbing the natural flow.
Nowadays the research is focused on investigation of different natural materials to
protect the environment, due to their low cost and availability in nature in large
quantities. The purpose of this work is to investigate the efficacy of various natural
materials such as natural and iron-modified zeolite, apatite, concentrated apatite,
kaolin and raw bentonite to remove heavy metals (lead and cadmium) from
contaminated groundwater using the in situ PBR. The batch test involves sorption
experiments followed by leaching experiments. In sorption experiments, the
amounts of metal removal by different sorbents were evaluated for cadmium and
lead from simulated wastewater with similar initial metal concentrations. The
leaching experiment included evaluation of metal retained by the saturated sorbents
in ultrapure water with adjusted pH values at 2.98 and 6.07. Additionally, pH values
of solutions were recorded during both experiments. Based on obtained results, the
sorbents that provide the optimal metal removal and their retaining from the
contaminated groundwater were selected.",
publisher = "Zagreb : University of Zagreb, Faculty of Chemical Engineering and Technology",
journal = "4TH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL MANAGEMENT TOWARDS CIRCULAR ECONOMY",
title = "Selection of low-cost sorbents as a potential possible material for a permeable reactive barrier based on a batch study",
pages = "37-37"
}

Ugrina, M., Daković, A., Vukojević Medvidović, N., Trgo, M., Stojanović, M., Kragović, M., Nuić, I., Mihajlović, M.,& Marković, M.. (2016). Selection of low-cost sorbents as a potential possible material for a permeable reactive barrier based on a batch study. in 4TH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL MANAGEMENT TOWARDS CIRCULAR ECONOMY
Zagreb : University of Zagreb, Faculty of Chemical Engineering and Technology., 37-37.

Ugrina M, Daković A, Vukojević Medvidović N, Trgo M, Stojanović M, Kragović M, Nuić I, Mihajlović M, Marković M. Selection of low-cost sorbents as a potential possible material for a permeable reactive barrier based on a batch study. in 4TH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL MANAGEMENT TOWARDS CIRCULAR ECONOMY. 2016;:37-37..

Ugrina, Marin, Daković, Aleksandra, Vukojević Medvidović, Nediljka, Trgo, Marina, Stojanović, Mirjana, Kragović, Milan, Nuić, Ivona, Mihajlović, Marija, Marković, Marija, "Selection of low-cost sorbents as a potential possible material for a permeable reactive barrier based on a batch study" in 4TH INTERNATIONAL SYMPOSIUM ON ENVIRONMENTAL MANAGEMENT TOWARDS CIRCULAR ECONOMY (2016):37-37.