MINIMIZING ARSENIC LEACHING FROM WATER TREATMENT PROCESS RESIDUALS

Abstract

MINIMIZING ARSENIC LEACHING FROM WATER TREATMENT PROCESS RESIDUALSFerric chloride addition was investigated for treatment of As-laden spent regeneration brine from ion exchange processes. Furthermore, varying conditions and calcium addition were investigated for the stabilization of the resulting As-laden solids. Arsenic, sulfate, bicarbonate, and chloride concentrations in the spent brine (300 mg/L, 605 mg/L, 305 mg/L, and 24 g/L, respectively) were orders of...Author(s)Thomas R. SteinwinderDongye ZhaoSourceProceedings of the Water Environment FederationSubjectSession 41: MicroconstituentsDocument typeConference PaperPublisherWater Environment FederationPrint publication date Jan, 2007ISSN1938-6478SICI1938-6478(20070101)2007:15L.3026;1-DOI10.2175/193864707787973662Volume / Issue2007 / 15Content sourceWEFTECFirst / last page(s)3026 - 3040Copyright2007Word count194