Process and apparatus for the biological purification of wastewa

Details Process and apparatus for the biological purification of wastewa Process and apparatus for the biological purification of wastewa

1986-02-26

1987-11-10

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210151, 2101953, 210627, C02F 308

Patent

active

047056347

ABSTRACT:
In a process for the biological purification of wastewater, the wastewater is mixed with activated sludge in an aeration basin in the presence of carrier particles for microorganisms and is aerated with an oxygen-containing gas. Treated wastewater and free activated sludge are discharged from a discharge zone of the aeration basin downstream of an initial zone at least 20% up to 70% of the length of the aeration basin.

REFERENCES:
patent: 1979197 (1934-10-01), Harf
patent: 2071591 (1937-02-01), Tholin
patent: 2465658 (1949-03-01), Nussberger
patent: 3054602 (1962-09-01), Proudman
patent: 3133017 (1964-05-01), Lambeth
patent: 4098695 (1978-07-01), Novotny
patent: 4566971 (1986-01-01), Reimann et al.

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