Microthrix Parvicella forming and bulking controlling method for waste water treatment
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United States of America Patent
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Jan 4, 2000
Grant Date -
N/A
app pub date -
Jan 23, 1998
filing date -
Jan 23, 1998
priority date (Note) -
Expired
status (Latency Note)
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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.
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