Process for thickening digested sludge
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United States of America Patent
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Mar 18, 1986
Grant Date -
N/A
app pub date -
Feb 28, 1984
filing date -
Feb 28, 1983
priority date (Note) -
Expired
status (Latency Note)
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Abstract
The invention relates to a process for thickening digested sludge, comprising the steps of providing digested sludge to be thickened, and then passing a gas, preferably air, through the digested sludge at an intensity in the range of above 0.1 to 5 gas to 1 sludge, on a volume basis, per hour. Sludge can be thickened to greater than 5% solids in ten days, an improvement of nearly 10 times that of traditional practice, as shown respectively by plots B and A.
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