Article ID | Journal | Published Year | Pages | File Type |
---|---|---|---|---|
578194 | Journal of Hazardous Materials | 2012 | 8 Pages |
Abstract
⺠Arsenate immobilization upon microbial Fe2+ oxidation in acid sulfate water was investigated. ⺠The schwertmannite model was invalid for explaining the process in the complex acid sulfate water. ⺠Arsenate was initially removed through co-precipitation of non-Fe metals, arsenate and phosphate. ⺠Followed by formation of mixed Fe, arsenate and phosphate phases after sufficient Fe3+ was produced. ⺠The last step involved surface complexation with HAsO42â being the dominant adsorbed As species.
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Authors
Yingqun Ma, Chuxia Lin,