Method for dewatering alum sludge

Details Method for dewatering alum sludge Method for dewatering alum sludge

1990-08-07

1991-03-19

Silverman, Stanley

Liquid purification or separation

Processes

Making an insoluble substance or accreting suspended...

210759, 210912, C02F 172

Patent

active

050008609

ABSTRACT:
The dewaterability of alum sludge is improved by treating the alum sludge with low doses of hydrogen peroxide. The hydrogen peroxide enhances filterability and drainability of the alum sludge and also improves the resulting cake quality of the dewatered alum sludge.

REFERENCES:
patent: 3530067 (1970-09-01), Friedman
patent: 3720608 (1973-03-01), Stauffer
patent: 4051027 (1977-09-01), Batzer et al.
patent: 4219418 (1980-08-01), Pilon
patent: 4221661 (1980-09-01), Shimizu et al.
patent: 4244818 (1981-01-01), Abson

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