Enhanced arsenite removal through surface-catalyzed oxidative coagulation treatment

• Published in: Chemosphere (Oxford) Vol. 150; pp. 650 - 658
• Main Authors: Li, Yue, Bland, Garret D., Yan, Weile
• Format: Journal Article
• Language: English
• Published: England Elsevier Ltd 01.05.2016
• Subjects: Adsorption; arsenates; Arsenic; Arsenite; arsenites; Arsenites - analysis; Arsenites - chemistry; Catalysis; Coagulants; Coagulation; colloids; Drinking water treatment; Fe(III) hydroxide; Ferric chloride; Ferric Compounds - chemistry; Ferrous Compounds - chemistry; Flocculation; groundwater contamination; humic acids; Humic Substances - analysis; hydrogen peroxide; Hydrogen Peroxide - chemistry; iron; oxidants; Oxidation; Oxidation-Reduction; phosphates; Radicals; superoxide anion; Surface Properties; Surface-mediated oxidation; United States Environmental Protection Agency; Water Pollutants, Chemical - analysis; Water Pollutants, Chemical - chemistry; Water Purification - methods; Water quality; water treatment; Drinking water treatment; Fe(III) hydroxide; Surface-mediated oxidation; Arsenite; Coagulation

Arsenic being a naturally-occurring groundwater contaminant is subject to stringent water quality regulations. Coagulation and adsorption are widely used methods to treat arsenic-contaminated water, however, these treatments have been reported to be less efficient for the removal of arsenite (As(III...