Device for odor filtering of exhaust air from waste water treatm

Details Device for odor filtering of exhaust air from waste water treatm Device for odor filtering of exhaust air from waste water treatm

1992-08-06

1995-07-11

Wyse, Thomas

Liquid purification or separation

With gas separator

210218, 210320, 95 92, C02F 330

Patent

active

054318084

ABSTRACT:
The waste water which is discharged from the anaerobic treatment stages of biological waste water treatment plants still contains highly volatile organic substances which, if not biodegraded, escape into the ambient air and lead to unwelcome odors. Also, the exhaust air of the anaerobic treatment stage may contain such highly volatile substances. An escape into the ambient air can be prevented if the waste water which is discharged from the anaerobic treatment stage is aerated with exhaust air sucked off from the anaerobic stage and if this exhaust air, after the aeration, is then fed to a spray washer and compost filter. The water for the spray washer is taken from the discharge of the anaerobic stage and returns there.

REFERENCES:
patent: 3216905 (1965-11-01), Baptist
patent: 4302236 (1981-11-01), Roman
patent: 5240611 (1993-08-01), Burton
Pomeroy, Richard D.: Biological treatment of odorous air. In: Journal WPCF 54, 1982, S. 1541-1545, Dec. 1982.

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