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Sulfide precipitation of heavy metals from aqueous solutions
Sulfide precipitation of heavy metals from aqueous solutions
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机译:水溶液中重金属的硫化物沉淀
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摘要
A process is disclosed for the removal of dissolved heavy metals from aqueous solution contaminated therewith wherein at least one of said heavy metals is reacted with a water-soluble inorganic sulfide or hydrosulfide at a defined elevated temperature and a controlled pH of between about 2 to about 3.5 to thereby precipitate heavy metal sulfide, and thereafter separating the precipitate from the filtrate.
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