Liquid purification or separation – Processes – Treatment by living organism
Patent
1997-07-29
1999-09-21
Wyse, Thomas G.
Liquid purification or separation
Processes
Treatment by living organism
210613, 210631, 210727, 210728, C02F 1104
Patent
active
059549645
ABSTRACT:
The present invention comprises a wastewater treatment process wherein the waste activated sludge is digested to produce treated biosolids which are then directed to a dewatering facility that removes water from the treated biosolids. Before or during the dewatering process, both a low molecular weight polymer and a high molecular weight polymer are added to the treated biosolids. The addition of the two polymers of different molecular weights results in the treated biosolids coagulating and then forming flocs of biosolids that effectively drives water from the flocs and renders the flocs more susceptible to an efficient and effective dewatering process.
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Holbrook R. David
Nielsen Bente Elise
Kruger, Inc.
Wyse Thomas G.
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