Method for treating wastes

Details Method for treating wastes Method for treating wastes

1997-05-12

1998-09-22

Marcheschi, Michael

Compositions: coating or plastic

Coating or plastic compositions

Inorganic settable ingredient containing

106705, 106706, 106708, 106DIG1, 588256, 588257, C04B 1804, A62D 300

Patent

active

058109200

ABSTRACT:
To treat waste containing harmful metals such as lead, cadmium, mercury, chromium, copper, nickel, zinc, etc., the waste is mixed with a treating agent containing, as the essential constituent component, solid acid(s) and/or cement and additionally a caking inhibitor, kneaded with water where necessary, then solidified by curing. Harmful metals are thereby stabilized in the thus-solidified cakes and are not released therefrom.

REFERENCES:
patent: 4209335 (1980-06-01), Katayama et al.
patent: 4432666 (1984-02-01), Frey
patent: 5362319 (1994-11-01), Johnson
patent: 5376283 (1994-12-01), Hooykaas

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