Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1975-11-19
1980-04-01
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 54, 210 60, 210 71, 210 73S, 210 74, 210 83, C02B 104, C02B 120
Patent
active
041960777
ABSTRACT:
Substantial dewatering of a secondary sewage sludge stream is obtained by admixing same with various hydrocarbon oils, the initial sludge/oil weight ratio being maintained in an amount less than 0.6, at shear rates of at least 130 seconds.sup.-1, and allowing the mixture thus formed to settle at temperatures of at least 72.degree. F. Substantially complete disposal of the solids thus removed from the secondary sludge stream can be achieved by subjecting same to evaporation and incineration processes.
REFERENCES:
patent: 1955065 (1934-04-01), Hawley
patent: 2226532 (1940-12-01), Hawley
patent: 3365395 (1968-01-01), McDonald
Asher William J.
Beerbower Alan
Berkowitz Leonard
Geyer Jerome
Ditsler John W.
Exxon Research & Engineering Co.
Hart Charles N.
Ott Roy J.
Sadowski David R.
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