Biotreatment using carbon treated recycle and/or clarifier efflu

Details Biotreatment using carbon treated recycle and/or clarifier efflu Biotreatment using carbon treated recycle and/or clarifier efflu

1977-08-22

1980-06-10

Wyse, Thomas G.

Liquid purification or separation

With alarm, indicator, register, recorder, signal or...

Responsive to fluid flow

210 8, 210 17, 210 18, C02C 106

Patent

active

042071798

ABSTRACT:
In a process for biotreating industrial waste water, a portion of the effluent is treated with activated carbon and recycled to the biotreater. This results in a substantial improvement in the biotreater performance. In another embodiment, the biotreatment is an activated sludge process and the clarifier effluent is filtered to stop loss of bacteria and periodically the filter is backwashed to return the bacteria to the system.

REFERENCES:
patent: 1254836 (1918-01-01), Mulloy
patent: 2529295 (1950-11-01), Hood
patent: 3269542 (1966-08-01), Renzi et al.
patent: 3730881 (1973-05-01), Armstrong
patent: 3869380 (1975-03-01), Torpey
patent: 3928190 (1975-12-01), Bebin
patent: 4081365 (1978-03-01), White et al.

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