Method for preventing the bulking of activated sludge

Details Method for preventing the bulking of activated sludge Method for preventing the bulking of activated sludge

1986-12-19

1988-03-22

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210736, C02F 312

Patent

active

047326840

ABSTRACT:
A method for preventing the bulking of activated sludge, which comprises adding to the activated sludge a water-soluble cationic polymer obtained by a reaction of a dialkylamine, ammonia and epichlorohydrin, in an amount of from 0.05 to 25 parts by weight relative to 100 parts by weight of the dried solid content of the activated sludge.

REFERENCES:
patent: 3855299 (1974-12-01), Witt
patent: 4098693 (1978-07-01), Tonkyn et al.
patent: 4341632 (1982-07-01), Gregor et al.
patent: 4452699 (1984-06-01), Suzuki et al.
Schwartz Propwchak & Becker, Journal of Water Pollution Control Federation (USA), 1980, vol. 52, no. 12, pp. 2977-2993.
Walker & Wheale, Environmental Technology Letters, 1981, vol. 2, pp. 129-140.

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