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Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution
Process for reducing the concentration of dissolved metals and metalloids in an aqueous solution
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机译:降低水溶液中溶解的金属和准金属浓度的方法
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摘要
An aqueous solution, for example, effluent from an off-gas scrubber, is treated to remove metal and metalloid ions by in situ precipitation of ferrous ions by the addition thereto of a ferrous ion-containing solution, salt or other such ferrous ion-containing source and a hydroxyl-yielding base in the presence of the metals and metalloids. The reaction conditions include a temperature of at least about 60° C., and a pH of from about 6 to about 10.
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