Process for treating liquids wastes possessing a strong acidity

Details Process for treating liquids wastes possessing a strong acidity Process for treating liquids wastes possessing a strong acidity

1981-04-08

1983-03-08

Poer, James

Compositions: coating or plastic

Coating or plastic compositions

Metal-depositing composition or substrate-sensitizing...

106 97, 106117, 106118, 106DIG1, C04B 100

Patent

active

043759866

ABSTRACT:
Waste material having a pH not exceeding 2, and which have previously caused a serious disposal problem, are converted into stable, solid, useful, non-polluting products by first mixing the waste material with fly ash using about 30 to 260 parts of weight of ash for 100 parts of waste material, then neutralizing the resultant mixture using lime or calcium carbonate containing materials, next adding a calcium containing binder such as lime or Portland cement, and then solidifying the resultant mixture.

REFERENCES:
patent: 3720609 (1973-03-01), Smith et al.
patent: 4028130 (1977-06-01), Webster et al.
patent: 4116705 (1978-09-01), Chappell
Bond, M. S. et al. "Handbook of Environmental Control vol. IV: Wastewater: Treatment and Disposal", pp. 280, 286-287, 290 (1974).
Cassell, E. A. et al. "Solidification of Sludges with Portland Cement", Journal of the Sanitary Engineering Division, pp. 15-26, Feb., 19870.

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