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Process Design for Simultaneously Removing Arsenic and Manganese

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Process design improvements, focused on balancing the different water chemistry requirements of arsenic and manganese removal, were implemented at a mine wastewater treatment facility after detailed bench scale testing. In addition to testing different conditions, reagents, and dosages for arsenic and manganese removal, chemical addition points within the treatment process were also adjusted for optimal arsenic and manganese removal. The challenges for simultaneous arsenic and manganese removal are presented, along with analyses of both full-scale wastewater treatment facility data and bench scale testing results.

Keywords: Arsenic removal; ferric coagulation; manganese removal; mining; multiple contaminant removal; process design; water chemistry

Document Type: Research Article


Publication date: January 1, 2011

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  • Proceedings of the Water Environment Federation is an archive of papers published in the proceedings of the annual Water Environment Federation® Technical Exhibition and Conference (WEFTEC® ) and specialty conferences held since the year 2000. These proceedings are not peer reviewed.

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