Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1978-01-03
1980-07-15
Hart, Charles N.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 40, 210 67, C02B 114, C02B 300, C02C 502
Patent
active
042127327
ABSTRACT:
A raw sewage treatment process is disclosed in which substantially all the non-dissolved matter, which is suspended in the sewage water is first separated from the water, in which at least organic matter is dissolved. The non-dissolved material is pyrolyzed to form an activated carbon and ash material without the addition of any conditioning agents. The activated carbon and ash material is added to the water from which the non-dissolved matter was removed. The activated carbon and ash material absorbs organic matter and heavy metal ions, it is believed, are dissolved in the water and is thereafter supplied in a counter current flow direction and combined with the incoming raw sewage to facilitate the separation of the non-dissolved settleable materials from the sewage water. The used carbon and ash material together with the non-dissolved matter which was separated from the sewage water are pyrolyzed to form the activated carbon and ash material.
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"Sludge Pyrolysis Schemes Now Head for Tryouts," Chem. Eng., Dec. 8, 1975, pp. 90 and 92.
Fletcher James C. Administrator of the National Aeronautics and Space
Humphrey Marshall F.
California Institute of Technology
Hart Charles N.
Hruskoci Peter A.
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