C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
362/18
C02F 3/12 (2006.01)
Patent
CA 1145073
ABSTRACT The invention disclosed relates to an apparatus for use in the advanced biological treatment of waste water or sewage. The apparatus described includes a conically shaped aeration chamber wherein the sewage is subjected to activated sludge and a plurality of settling chambers through which the sewage is passed. The treated water is removed from the settling chambers and sludge is re-cycled back into the aeration chamber by means of an aerator.
350371
Anderson J. Wayne
Etlin Vladimir N.
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