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Alkali modified hydrochar of grape pomace as a perspective adsorbent of Pb2+ from aqueous solution

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Authors
Petrović, Jelena
Stojanović, Mirjana
Milojković, Jelena
Petrović, Marija
Šoštarić, Tatjana
Lausević, Mila D.
Mihajlović, Marija
Article (Published version)
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Abstract
Hydrochar produced via hydrothermal carbonization of grape pomace was considered as novel sorbent of Pb2+ from aqueous solution. In order to enhance the adsorption capacity, hydrochar was chemically modified using 2 M KOH solution. Both materials were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction technique. Batch experiments were performed to examine the effect of sorbent dosage, pH and contact time. Obtained results showed that the KOH treatment increased the sorption capacity of hydrochar from 27.8 mg g(-1) up to 137 mg g(-1) at pH 5. Adsorption of lead 'on either of the materials was achieved through ion-exchange mechanism, chemisorption and Pb2+-Tr interaction. The Sips isotherm model gave the best fit with the experimental data obtained for Pb2+ sorption using activated hydrochar. The adsorption kinetic followed a pseudo second-order model. Thermodynamic parameters implied that the Pb2+ binding for hydrochar surface wa...s spontaneous and exothermic process. Findings from this work suggest that the hydrothermal carbonization is a promising route for production of efficient Pb2+ sorbents for wastewater treatment.

Keywords:
Mechanism / Lead removal / KOH activation / Grape pomace hydrochar / Adsorption isotherms
Source:
Journal of Environmental Management, 2016, 182, 292-300
Publisher:
  • Academic Press Ltd- Elsevier Science Ltd, London
Funding / projects:
  • Development of technologies and products based on mineral raw materials and waste biomass for protection of natural resources for safe food production (RS-31003)

DOI: 10.1016/j.jenvman.2016.07.081

ISSN: 0301-4797

PubMed: 27494605

WoS: 000383291600031

Scopus: 2-s2.0-84980409652
[ Google Scholar ]
97
21
URI
https://ritnms.itnms.ac.rs/handle/123456789/407
Collections
  • Radovi istraživača / Researchers’ publications
Institution/Community
Institut za tehnologiju nuklearnih i drugih mineralnih sirovina
TY  - JOUR
AU  - Petrović, Jelena
AU  - Stojanović, Mirjana
AU  - Milojković, Jelena
AU  - Petrović, Marija
AU  - Šoštarić, Tatjana
AU  - Lausević, Mila D.
AU  - Mihajlović, Marija
PY  - 2016
UR  - https://ritnms.itnms.ac.rs/handle/123456789/407
AB  - Hydrochar produced via hydrothermal carbonization of grape pomace was considered as novel sorbent of Pb2+ from aqueous solution. In order to enhance the adsorption capacity, hydrochar was chemically modified using 2 M KOH solution. Both materials were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction technique. Batch experiments were performed to examine the effect of sorbent dosage, pH and contact time. Obtained results showed that the KOH treatment increased the sorption capacity of hydrochar from 27.8 mg g(-1) up to 137 mg g(-1) at pH 5. Adsorption of lead 'on either of the materials was achieved through ion-exchange mechanism, chemisorption and Pb2+-Tr interaction. The Sips isotherm model gave the best fit with the experimental data obtained for Pb2+ sorption using activated hydrochar. The adsorption kinetic followed a pseudo second-order model. Thermodynamic parameters implied that the Pb2+ binding for hydrochar surface was spontaneous and exothermic process. Findings from this work suggest that the hydrothermal carbonization is a promising route for production of efficient Pb2+ sorbents for wastewater treatment.
PB  - Academic Press Ltd- Elsevier Science Ltd, London
T2  - Journal of Environmental Management
T1  - Alkali modified hydrochar of grape pomace as a perspective adsorbent of Pb2+ from aqueous solution
EP  - 300
SP  - 292
VL  - 182
DO  - 10.1016/j.jenvman.2016.07.081
UR  - conv_768
ER  - 
@article{
author = "Petrović, Jelena and Stojanović, Mirjana and Milojković, Jelena and Petrović, Marija and Šoštarić, Tatjana and Lausević, Mila D. and Mihajlović, Marija",
year = "2016",
abstract = "Hydrochar produced via hydrothermal carbonization of grape pomace was considered as novel sorbent of Pb2+ from aqueous solution. In order to enhance the adsorption capacity, hydrochar was chemically modified using 2 M KOH solution. Both materials were characterized by Fourier transform infrared spectroscopy, scanning electron microscopy and X-ray diffraction technique. Batch experiments were performed to examine the effect of sorbent dosage, pH and contact time. Obtained results showed that the KOH treatment increased the sorption capacity of hydrochar from 27.8 mg g(-1) up to 137 mg g(-1) at pH 5. Adsorption of lead 'on either of the materials was achieved through ion-exchange mechanism, chemisorption and Pb2+-Tr interaction. The Sips isotherm model gave the best fit with the experimental data obtained for Pb2+ sorption using activated hydrochar. The adsorption kinetic followed a pseudo second-order model. Thermodynamic parameters implied that the Pb2+ binding for hydrochar surface was spontaneous and exothermic process. Findings from this work suggest that the hydrothermal carbonization is a promising route for production of efficient Pb2+ sorbents for wastewater treatment.",
publisher = "Academic Press Ltd- Elsevier Science Ltd, London",
journal = "Journal of Environmental Management",
title = "Alkali modified hydrochar of grape pomace as a perspective adsorbent of Pb2+ from aqueous solution",
pages = "300-292",
volume = "182",
doi = "10.1016/j.jenvman.2016.07.081",
url = "conv_768"
}
Petrović, J., Stojanović, M., Milojković, J., Petrović, M., Šoštarić, T., Lausević, M. D.,& Mihajlović, M.. (2016). Alkali modified hydrochar of grape pomace as a perspective adsorbent of Pb2+ from aqueous solution. in Journal of Environmental Management
Academic Press Ltd- Elsevier Science Ltd, London., 182, 292-300.
https://doi.org/10.1016/j.jenvman.2016.07.081
conv_768
Petrović J, Stojanović M, Milojković J, Petrović M, Šoštarić T, Lausević MD, Mihajlović M. Alkali modified hydrochar of grape pomace as a perspective adsorbent of Pb2+ from aqueous solution. in Journal of Environmental Management. 2016;182:292-300.
doi:10.1016/j.jenvman.2016.07.081
conv_768 .
Petrović, Jelena, Stojanović, Mirjana, Milojković, Jelena, Petrović, Marija, Šoštarić, Tatjana, Lausević, Mila D., Mihajlović, Marija, "Alkali modified hydrochar of grape pomace as a perspective adsorbent of Pb2+ from aqueous solution" in Journal of Environmental Management, 182 (2016):292-300,
https://doi.org/10.1016/j.jenvman.2016.07.081 .,
conv_768 .

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