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Field Evaluation of Arsenic and Selenium Removal by Iron Coprecipitation
Author: Douglas T. Merrill, Mark A. Manzione, Denny S. Parker, Jeffrey J. Petersen, Winston Chow, Alexander O. Hobbs
Date: 1/186
Reprinted from Journal Water Pollution Control Federation, Volume 58, No.1, January 1986

Priority trace elements, such as arsenic, selenium, cadmium, chromium, copper, lead, silver, and zinc are often present in the discharges from coal-fired electric power plants. These elements may be eliminated from the waste streams by coprecipitation with amorphous iron oxyhydroxide. Iron oxyhydroxide is formed when a ferric salt (for example, ferric chloride) is added to the waste.

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