Liquid purification or separation – Recirculation – Serially connected distinct treating or storage units
Patent
1988-07-07
1990-08-28
Therkorn, Ernest G.
Liquid purification or separation
Recirculation
Serially connected distinct treating or storage units
210170, 210220, 210521, 2105321, 210926, C02F 320
Patent
active
049523104
ABSTRACT:
An intrachannel clarifier for an oxidation ditch includes an enclosure positioned in the flow path of the oxidation ditch. This enclosure defines a perimeter wall which surrounds an internal volume made up of an upper zone, a middle zone and a lower zone. The cross-sectional area of the internal volume increases progressively from the lower zone to the upper zone. A water inlet port introduces waste water from the flow path into the lower zone, a submerged pipe in the upper zone removes clarified water from the upper zone, and sludge is actively removed from the middle zone via a sludge removal manifold disposed in the middle zone to reduce the residence time of sludge in the middle zone while maintaining a filter blanket of sludge in the middle zone.
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Assessment of Design Tradeoffs When Using Intrachannel Clarifier by: Jon H. Bender, dated Oct. 6, 1986, pp. 1-23.
ClariCone Reactor-Clarifier by: Walker Process Division of Chicago Bridge & Iron Company, Bulletin No. 5-W-78, entire document, 12/9/82.
McMahan Anthony A.
Vock Donald C.
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