Liquid purification or separation – Serially connected distinct treating with or without storage... – Diverse
Patent
1998-07-10
1999-10-05
Woo, Jay H.
Liquid purification or separation
Serially connected distinct treating with or without storage...
Diverse
2101951, 2101953, 210202, 210205, C02F 900
Patent
active
059618264
ABSTRACT:
A waste water treatment system including an anaerobic tank for treating phosphorous contained in initial waste water, a pair of anoxic tanks for treating nitrate in the waste water from the anaerobic tank, a holding tank for containing therein the waste water from an anoxic tank, an aeration tank for treating an organic material contained in waste water from the holding tank by microorganisms and pure oxygen and for treating ammonia by microorganisms to convert the ammonia into nitrate, with the aeration tank being a substantial cylindrical body mounted on a concrete bottom provided with an inclined eccentric slope for causing the waste water to eccentrically flow within the aeration tank, having a diffuser for diffusing compressed air into the waste water in the aeration tank, and a pure oxygen generator, and with the anaerobic tank, the pair of anoxic tanks and the holding tank being mounted around the aeration tank, a sedimentation tank vertically combined with the aeration tank and communicated therewith, with the sedimentation tank having a clarified water outlet, a reversed funnel-shaped guider for guiding the waste water to converge flow lines, a guide baffle mounted inside the reversed funnel-shaped guider, and an outer guider for guiding a flow of waste water having passed the reversed funnel-shaped guider.
REFERENCES:
patent: 3872003 (1975-03-01), Walker
patent: 4874519 (1989-10-01), Williamson
patent: 5518618 (1996-05-01), Mulder et al.
patent: 5776335 (1998-07-01), Overath
Lawrence, Jr. Frank M.
Woo Jay H.
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