Activated sludge system with integrated regenerator

Details Activated sludge system with integrated regenerator Activated sludge system with integrated regenerator

1983-07-29

1985-06-04

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210618, 210151, C02F 306, C02F 308

Patent

active

045213119

ABSTRACT:
In the treatment of wastewater, the mixture of wastewater and the sludge is transported through a treatment zone, and then through a filter zone containing a bed of support particles, e.g., particles of polyurethane foam, to deposit the biomass onto the support particles. The loaded support particles are subsequently regenerated within the filter zone by means of a regenerating means in the same area as the filter zone, e.g., by strong aeration or by being compressed between press-rolls, whereby the system requires neither additional land for regeneration of the support particles nor a secondary settling tank.

REFERENCES:
patent: 2071591 (1937-02-01), Tholin
patent: 3232434 (1966-02-01), Albersmeyer
patent: 3956128 (1976-05-01), Turner
patent: 3968034 (1976-07-01), Tymoszczuk
patent: 4055490 (1977-10-01), Hasegawa et al.
patent: 4137171 (1979-01-01), Yokata
patent: 4391703 (1983-07-01), Crosby

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