Treatment process for contaminated waste

Details Treatment process for contaminated waste Treatment process for contaminated waste

A - Human Necessities

62

D

A62D 3/36 (2007.01) B09B 3/00 (2006.01) A62D 3/00 (2006.01)

Patent

CA 2137996

A process for treating contaminated waste to stabilize environmentally harmful heavy metal. The contaminated waste is contacted with a mixture of (i) inorganic sulfide, (ii) calcium phosphate to prevent oxidation of the sulfide and (iii) calcium carbonate, the last acting as a base. Water is added to enhance mass transfer during the mixing. The calcium carbonate may be mixed with calcium oxide, to provide an additional base.

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