Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units
Patent
1979-03-05
1980-12-09
Castel, Benoit
Liquid purification or separation
Recirculation
Serially connected distinct treating or storage units
210197, 210201, 210220, C02F 320
Patent
active
042383382
ABSTRACT:
An apparatus for treating sewage to obtain substantially complete organic matter substrate and biological sludge oxidation prior to effluent discharge in a treatment system comprising a series of treatment chambers in a single unit; each treatment chamber having a generally circular peripheral crosssectional configuration, conduit means in each treatment chamber for directing the flow of mixed liquor in each chamber, gas supply means for supplying an oxygen containing gas to each treatment chamber so as to cause a continuous flow pattern of mixed liquor in the treatment chamber; inlet means for supplying raw sewage to the first treatment chamber of the series; outlet means for withdrawing clarified effluent from the last treatment chamber of the series; and fluid communication means for providing fluid communication between an intermediate top portion of each successive treatment chamber of the series. The system is preferably designed to provide environments suitable for microorganism growth and development through sewage organic matter consumption in the first treatment of the series, microorganism population maintenance in the next successive treatment chamber of the series and microorganism autodigestion in latter treatment chambers of the series, thereby providing an effluent substantially free of digestable organic matter and biological sludge.
REFERENCES:
patent: 3563888 (1971-02-01), Klock
patent: 3872003 (1975-03-01), Walker
patent: 3883424 (1975-05-01), Stamblesky et al.
patent: 4008159 (1977-02-01), Besik
patent: 4021347 (1977-05-01), Teller et al.
patent: 4142975 (1979-03-01), Kinzer
Castel Benoit
Sanilogical Corporation
Shelton Dennis K.
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