Process and apparatus for biologically treating waste waters

Details Process and apparatus for biologically treating waste waters Process and apparatus for biologically treating waste waters

1981-12-01

1984-02-07

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210627, 2101953, 210218, C02F 326

Patent

active

044302240

ABSTRACT:
In a process and apparatus for conducting an activated sludge process in an activation basin having multiple sections, preferably at least three sections are provided for conducting the process with each succeeding section being larger in volume than the previous section by an amount about equal to the volume of the first section. It is preferred that the process be conducted in the first section by feeding the first section with an oxygen enriched gas, and with the next section in line fed with the exhaust from the first section, and the third section being aerated with air. In a specific refinement, there are provided four sections with the first two sections sealed with respect to the atmosphere.

REFERENCES:
patent: 3436341 (1969-04-01), Beuthe
patent: 3725258 (1973-04-01), Spector et al.
patent: 3733264 (1973-05-01), Spector et al.
patent: 3960717 (1976-06-01), Wyatt
patent: 4087361 (1978-05-01), Block et al.

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