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https://doi.org/10.1007/s11426-007-0117-6
Title: | Preparation of polymer-supported hydrated ferric oxide based on Donnan membrane effect and its application for arsenic removal | Authors: | Zhang, Q. Pan, B. Chen, X. Zhang, W. Pan, B. Zhang, Q. Lv, L. Zhao, X.S. |
Keywords: | Anion exchanger Arsenic Donnan membrane effect Hydrated ferrous oxide Sorption |
Issue Date: | Apr-2008 | Citation: | Zhang, Q., Pan, B., Chen, X., Zhang, W., Pan, B., Zhang, Q., Lv, L., Zhao, X.S. (2008-04). Preparation of polymer-supported hydrated ferric oxide based on Donnan membrane effect and its application for arsenic removal. Science in China, Series B: Chemistry 51 (4) : 379-385. ScholarBank@NUS Repository. https://doi.org/10.1007/s11426-007-0117-6 | Abstract: | In the present study a novel technique was proposed to prepare a polymer-supported hydrated ferric oxide (D201-HFO) based on Donnan membrane effect by using a strongly basic anion exchanger D201 as the host material and FeCl3-HCl-NaCl solution as the reaction environment. D201-HFO was found to exhibit higher capacity for arsenic removal than a commercial sorbent Purolite ArsenX. Furthermore, it presents favorable adsorption selectivity for arsenic removal from aqueous solution, as well as satisfactory kinetics. Fixed-bed column experiments showed that arsenic sorption on D201-HFO could result in concentration of this toxic metalloid element below 10 μg/L, which was the new maximum concentration limit set recently by the European Commission and imposed by the US EPA and China. Also, the spent D201-HFO is amenable to efficient regeneration by NaOH-NaCl solution. © 2008 Science Press. | Source Title: | Science in China, Series B: Chemistry | URI: | http://scholarbank.nus.edu.sg/handle/10635/89917 | ISSN: | 10069291 | DOI: | 10.1007/s11426-007-0117-6 |
Appears in Collections: | Staff Publications |
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