C - Chemistry – Metallurgy – 02 – F
Patent
C - Chemistry, Metallurgy
02
F
C02F 3/24 (2006.01) C02F 3/12 (2006.01)
Patent
CA 2292382
An apparatus for wastewater treatment, includes a calorie reducer first vessel having an inlet and an outlet, the outlet adapted to control the retention time of wastewater within the first vessel. A first recycle pump is connected to the first vessel to recycle wastewater from a bottom of the first vessel to a top of the first vessel through a recycle conduit, at a high velocity. The recycle conduit provides an air gap for drawing air into the first vessel. Bacteria within the calorie reducer vessel consume biodegradable food with a minimum number of bacteria while in the log growth phase. A second bio-reducer vessel is connected to the calorie reducer vessel. The bio--reducer holds a media supported above a bottom reservoir. A bio-reducer recycle pump recycles wastewater within the reservoir to be sprayed onto a top of the bio--reducer, to wash over the media. Further bio-reducers can be arranged downstream of the first bio-reducer. In the bio-reducers, protozoa attached to the media consume the bacteria which wash over the media.
Cooper Lindy Ty
Weis Frank G.
Finlayson & Singlehurst
Smith & Loveless Inc.
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