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|Title:||Preparation of polymer-supported hydrated ferric oxide based on Donnan membrane effect and its application for arsenic removal|
Donnan membrane effect
Hydrated ferrous oxide
|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|
|Appears in Collections:||Staff Publications|
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