Microthrix Parvicella forming and bulking controlling method for

Details Microthrix Parvicella forming and bulking controlling method for Microthrix Parvicella forming and bulking controlling method for

1998-01-23

2000-01-04

Wyse, Thomas G.

Liquid purification or separation

Processes

Treatment by living organism

210611, 210626, 210631, C02F 312

Patent

active

060106298

ABSTRACT:
A Microthrix parvicella (and other microorganisms) foaming controlling method of waste water treatment includes a step of injecting polymer to the aeration basins of an industrial or domestic waste water activated sludge treatment systems. When polymer is present in the aeration basin it reduces the buoyancy of the Microthrix parvicella, most likely by reducing the cell surface hydrophobicity or by coagulation and flocculation of the Microthrix parvicella (and other microorganisms) floc. This allows foam causing microorganisms to escape the treatment system.

REFERENCES:
patent: 3622508 (1971-11-01), Komline
patent: 3658697 (1972-04-01), Huether
patent: 4173532 (1979-11-01), Keoteklian
patent: 5240600 (1993-08-01), Wong et al.
patent: 5364529 (1994-11-01), Morin et al.
patent: 5614098 (1997-03-01), Shao et al.

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