In this study, acid heat-activated neutralized red mud (AB) was promoted as an efficient sorbent for the removal of inorganic arsenic from water. Three sorbents: neutralized red mud (Bauxsol), acid-treated Bauxsol (aBauxsol), and AB were investigated for arsenic removal. The sorption of arsenic on these adsorbents was studied as a function of contact time, initial arsenic concentration, and adsorbent dosage. The Langmuir isotherm was the best-fit adsorption isotherm model for the experimental data. The adsorption capacity of the activated red mud for As(V) was found to be 1.49 mg g(-1) at a pH of water of 7.0. It was observed that AB at a dose of 6.0 gL(-1) could effectively remove As(III) and As(V) from water. Anion interference on a molar basis was found to follow the order: phosphate interference was higher than sulfate interference, which was higher than bicarbonate interference.
Keywords:
Acid and heat treatment / Acid treatment / Arsenate adsorption / Bauxsol / Competitive anions / Red mud
Source:
Chemical Engineering Communications, 2012, 199, 7, 849-864
TY - JOUR
AU - Vukasinovic-Pesić, Vesna L.
AU - Rajaković-Ognjanović, Vladana
AU - Blagojević, Nada Z.
AU - Grudić, Veselinka V.
AU - Lekić, Branislava
AU - Rajaković, Ljubinka V.
PY - 2012
UR - https://grafar.grf.bg.ac.rs/handle/123456789/429
AB - In this study, acid heat-activated neutralized red mud (AB) was promoted as an efficient sorbent for the removal of inorganic arsenic from water. Three sorbents: neutralized red mud (Bauxsol), acid-treated Bauxsol (aBauxsol), and AB were investigated for arsenic removal. The sorption of arsenic on these adsorbents was studied as a function of contact time, initial arsenic concentration, and adsorbent dosage. The Langmuir isotherm was the best-fit adsorption isotherm model for the experimental data. The adsorption capacity of the activated red mud for As(V) was found to be 1.49 mg g(-1) at a pH of water of 7.0. It was observed that AB at a dose of 6.0 gL(-1) could effectively remove As(III) and As(V) from water. Anion interference on a molar basis was found to follow the order: phosphate interference was higher than sulfate interference, which was higher than bicarbonate interference.
T2 - Chemical Engineering Communications
T1 - Enhanced Arsenic Removal from Water by Activated Red Mud Based on Hydrated Iron(III) and Titan(IV) Oxides
EP - 864
IS - 7
SP - 849
VL - 199
DO - 10.1080/00986445.2011.631235
ER -
@article{
author = "Vukasinovic-Pesić, Vesna L. and Rajaković-Ognjanović, Vladana and Blagojević, Nada Z. and Grudić, Veselinka V. and Lekić, Branislava and Rajaković, Ljubinka V.",
year = "2012",
abstract = "In this study, acid heat-activated neutralized red mud (AB) was promoted as an efficient sorbent for the removal of inorganic arsenic from water. Three sorbents: neutralized red mud (Bauxsol), acid-treated Bauxsol (aBauxsol), and AB were investigated for arsenic removal. The sorption of arsenic on these adsorbents was studied as a function of contact time, initial arsenic concentration, and adsorbent dosage. The Langmuir isotherm was the best-fit adsorption isotherm model for the experimental data. The adsorption capacity of the activated red mud for As(V) was found to be 1.49 mg g(-1) at a pH of water of 7.0. It was observed that AB at a dose of 6.0 gL(-1) could effectively remove As(III) and As(V) from water. Anion interference on a molar basis was found to follow the order: phosphate interference was higher than sulfate interference, which was higher than bicarbonate interference.",
journal = "Chemical Engineering Communications",
title = "Enhanced Arsenic Removal from Water by Activated Red Mud Based on Hydrated Iron(III) and Titan(IV) Oxides",
pages = "864-849",
number = "7",
volume = "199",
doi = "10.1080/00986445.2011.631235"
}
Vukasinovic-Pesić, V. L., Rajaković-Ognjanović, V., Blagojević, N. Z., Grudić, V. V., Lekić, B.,& Rajaković, L. V.. (2012). Enhanced Arsenic Removal from Water by Activated Red Mud Based on Hydrated Iron(III) and Titan(IV) Oxides. in Chemical Engineering Communications, 199(7), 849-864.
https://doi.org/10.1080/00986445.2011.631235
Vukasinovic-Pesić VL, Rajaković-Ognjanović V, Blagojević NZ, Grudić VV, Lekić B, Rajaković LV. Enhanced Arsenic Removal from Water by Activated Red Mud Based on Hydrated Iron(III) and Titan(IV) Oxides. in Chemical Engineering Communications. 2012;199(7):849-864.
doi:10.1080/00986445.2011.631235 .
Vukasinovic-Pesić, Vesna L., Rajaković-Ognjanović, Vladana, Blagojević, Nada Z., Grudić, Veselinka V., Lekić, Branislava, Rajaković, Ljubinka V., "Enhanced Arsenic Removal from Water by Activated Red Mud Based on Hydrated Iron(III) and Titan(IV) Oxides" in Chemical Engineering Communications, 199, no. 7 (2012):849-864,
https://doi.org/10.1080/00986445.2011.631235 . .
