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

1985-01-24

1986-01-28

Castel, Benoit

Liquid purification or separation

Processes

Treatment by living organism

210151, 210627, C02F 308

Patent

active

045669716

ABSTRACT:
In the biological purification of wastewater containing organic impurites, wherein the wastewater is passed through a reaction (1), e.g., continuous flow-stirred tank having circulating means (12) to achieve thorough mixing therein, or a fluidized bed or suspended bed type reactor, the wastewater is aerated in the presence of activated sludge with an oxygen containing gas fed through a gas feed conduit (9), and in a post clarification stage (5), the wastewater-activated sludge mixture from the reactor (1) is separated into purified water and sludge, the improvement comprises conducting the biological purification in the reactor (1) in the presence of a carrier material for microorganisms. The carrier material comprises particles of macroporous material having a low specific gravity, and in piece and/or granulated form in an amount such that the suspended individual particles are freely movable in the wastewater. Soft polyurethane foam particles are especially preferred as the carrier materail. In addition, a predetermined free activated sludge is maintained in the reactor.

REFERENCES:
patent: 2071591 (1937-02-01), Tholin
patent: 3779906 (1973-12-01), Levin
patent: 4055490 (1977-10-01), Hasegawa et al.
patent: 4200524 (1980-04-01), Levin

Affiliated with

Also associated with

Rating

Process and apparatus for the biological purification of wastewa does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Process and apparatus for the biological purification of wastewa, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Process and apparatus for the biological purification of wastewa will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1305111