Nocardia foaming controlling method of waste water treatment

Details Nocardia foaming controlling method of waste water treatment Nocardia foaming controlling method of waste water treatment

1995-04-21

1997-03-25

Wyse, Thomas G.

Liquid purification or separation

Processes

Treatment by living organism

210631, 210626, C02F 312

Patent

active

056140983

ABSTRACT:
A nocardia foaming controlling method of waste water treatment includes a step of injecting cationic polymer to a retention activation sludge line within the final clarifiers of the traditional waste water treatment process. When polymer is returned along with retention activation sludge to the aeration basins, the polymer's hydrophilic nature reduces the surface tension created between air bubbles and nocardia enriched floc. This allows nocardia to pass through the aeration basins, to eventually 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), Wang et al.
patent: 5364529 (1994-11-01), Morin et al.

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