Process for thickening digested sludge

Details Process for thickening digested sludge Process for thickening digested sludge

1984-02-28

1986-03-18

Wyse, Thomas

Liquid purification or separation

Processes

Treatment by living organism

210609, 210613, C02F 1106

Patent

active

045767190

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.

REFERENCES:
patent: 2875151 (1959-02-01), Davidson
patent: 3649531 (1972-03-01), Brown et al.

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