Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport
Нема приказа
Аутори
Vukčević, MarijaPejić, Biljana
Kalijadis, Ana
Pajić-Lijaković, Ivana
Kostić, Mirjana M.
Laušević, Zoran
Laušević, Mila D.
Чланак у часопису
Метаподаци
Приказ свих података о документуАпстракт
Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was tested through the adsorption of lead ions as a heavy metal model ion. Although changes in carbon precursor structure, induced by chemical modification, affect the sorption process and sorption capacity of carbonized hemp fibers, all carbonized hemp fibers samples show good adsorption properties toward lead ions. Obtained experimental data was used for development of the mathematical model that describes both the phenomenon of metal ions transport through the porous sorbent matrices, and the structure of carbonized hemp fibers. Effective diffusion coefficient, damping coefficient and the lead ion concentration profile within the carbonized hemp fibers, obtained as results of proposed mathematical model, give the insight in the mechanism and the rate of adsorption pro...cess, while average tortuosity connected the sorbent structure and ions transport through the sorbent. A good agreement between model prediction for both structural and ion transport model parameters and the experimental data, indicates that the proposed mathematical model can be successfully used for optimization of heavy metal ions adsorption process by correlating the model parameters to the carbonized hemp fibers performances. (C) 2013 Elsevier B.V. All rights reserved.
Кључне речи:
Heavy metals / Sorption / Waste biomass / Carbonization / Mathematical modelИзвор:
Chemical Engineering Journal, 2014, 235, 284-292Финансирање / пројекти:
- Развој и примена метода и материјала за мониторинг нових загађујућих и токсичних органских материја и тешких метала (RS-MESTD-Basic Research (BR or ON)-172007)
- Функционализација, карактеризација и примена целулозе и деривата целулозе (RS-MESTD-Basic Research (BR or ON)-172029)
- Физика и хемија са јонским сноповима (RS-MESTD-Integrated and Interdisciplinary Research (IIR or III)-45006)
DOI: 10.1016/j.cej.2013.09.047
ISSN: 1385-8947; 1873-3212
WoS: 000328804200034
Scopus: 2-s2.0-84885049742
Колекције
Институција/група
VinčaTY - JOUR AU - Vukčević, Marija AU - Pejić, Biljana AU - Kalijadis, Ana AU - Pajić-Lijaković, Ivana AU - Kostić, Mirjana M. AU - Laušević, Zoran AU - Laušević, Mila D. PY - 2014 UR - https://vinar.vin.bg.ac.rs/handle/123456789/5815 AB - Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was tested through the adsorption of lead ions as a heavy metal model ion. Although changes in carbon precursor structure, induced by chemical modification, affect the sorption process and sorption capacity of carbonized hemp fibers, all carbonized hemp fibers samples show good adsorption properties toward lead ions. Obtained experimental data was used for development of the mathematical model that describes both the phenomenon of metal ions transport through the porous sorbent matrices, and the structure of carbonized hemp fibers. Effective diffusion coefficient, damping coefficient and the lead ion concentration profile within the carbonized hemp fibers, obtained as results of proposed mathematical model, give the insight in the mechanism and the rate of adsorption process, while average tortuosity connected the sorbent structure and ions transport through the sorbent. A good agreement between model prediction for both structural and ion transport model parameters and the experimental data, indicates that the proposed mathematical model can be successfully used for optimization of heavy metal ions adsorption process by correlating the model parameters to the carbonized hemp fibers performances. (C) 2013 Elsevier B.V. All rights reserved. T2 - Chemical Engineering Journal T1 - Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport VL - 235 SP - 284 EP - 292 DO - 10.1016/j.cej.2013.09.047 ER -
@article{ author = "Vukčević, Marija and Pejić, Biljana and Kalijadis, Ana and Pajić-Lijaković, Ivana and Kostić, Mirjana M. and Laušević, Zoran and Laušević, Mila D.", year = "2014", abstract = "Carbonized hemp fibers obtained by carbonization of origin and chemically modified waste hemp fibers was used as a low-cost sorbent for heavy metals removal. The efficiency of carbonized hemp fiber samples as a sorbent was tested through the adsorption of lead ions as a heavy metal model ion. Although changes in carbon precursor structure, induced by chemical modification, affect the sorption process and sorption capacity of carbonized hemp fibers, all carbonized hemp fibers samples show good adsorption properties toward lead ions. Obtained experimental data was used for development of the mathematical model that describes both the phenomenon of metal ions transport through the porous sorbent matrices, and the structure of carbonized hemp fibers. Effective diffusion coefficient, damping coefficient and the lead ion concentration profile within the carbonized hemp fibers, obtained as results of proposed mathematical model, give the insight in the mechanism and the rate of adsorption process, while average tortuosity connected the sorbent structure and ions transport through the sorbent. A good agreement between model prediction for both structural and ion transport model parameters and the experimental data, indicates that the proposed mathematical model can be successfully used for optimization of heavy metal ions adsorption process by correlating the model parameters to the carbonized hemp fibers performances. (C) 2013 Elsevier B.V. All rights reserved.", journal = "Chemical Engineering Journal", title = "Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport", volume = "235", pages = "284-292", doi = "10.1016/j.cej.2013.09.047" }
Vukčević, M., Pejić, B., Kalijadis, A., Pajić-Lijaković, I., Kostić, M. M., Laušević, Z.,& Laušević, M. D.. (2014). Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport. in Chemical Engineering Journal, 235, 284-292. https://doi.org/10.1016/j.cej.2013.09.047
Vukčević M, Pejić B, Kalijadis A, Pajić-Lijaković I, Kostić MM, Laušević Z, Laušević MD. Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport. in Chemical Engineering Journal. 2014;235:284-292. doi:10.1016/j.cej.2013.09.047 .
Vukčević, Marija, Pejić, Biljana, Kalijadis, Ana, Pajić-Lijaković, Ivana, Kostić, Mirjana M., Laušević, Zoran, Laušević, Mila D., "Carbon materials from waste short hemp fibers as a sorbent for heavy metal ions - Mathematical modeling of sorbent structure and ions transport" in Chemical Engineering Journal, 235 (2014):284-292, https://doi.org/10.1016/j.cej.2013.09.047 . .