Multiple stage precipitation of heavy metals from acidic...

Details Multiple stage precipitation of heavy metals from acidic... Multiple stage precipitation of heavy metals from acidic...

C - Chemistry, Metallurgy

02

F

C02F 1/58 (2006.01)

Patent

CA 2149493

In the removal of heavy metal contaminants from industrial waste water, the invention provides a method for preparing a dense precipitate having superior handling and disposal properties. The method comprises incremental adjustment of the pH to maintain a low saturation ratio and recycling of slurry to provide seed crystals for secondary nucleation.

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