Sludge concentration method
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United States of America Patent
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-
Dec 2, 1986
Issued Date -
N/A
app pub date -
Dec 24, 1985
filing date -
Aug 22, 1983
priority date (Note) -
Expired
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Abstract
A method of sludge concentration comprises forming a froth in the foaming zone by mixing a foaming agent, air and water, mixing the sludge feed with said froth and a polymeric flocculant in a mixing zone, and introducing the resulting mixture of sludge and flocculant into a flotation zone for separating the mixture into a concentrated sludge and water is disclosed.
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