Liquid purification or separation – With time control – Of additional fluid
Patent
1991-08-21
1993-12-07
Wyse, Thomas
Liquid purification or separation
With time control
Of additional fluid
210142, 2101953, 210201, C02F 330
Patent
active
052680940
ABSTRACT:
A method is provided in accordance with this invention for treating wastewater in a tank having comminute, mix and settle sections. The method comprises receiving wastewater in the comminute section, comminuting solids in the wastewater, mixing the wastewater with air in the mix section, mixing the wastewater without further addition of air, mixing the wastewater with air again, directing wastewater to the settle section, separating solids from the wastewater, returning the solids to the mix section, and discharging the effluent from the tank. In another aspect, this invention relates to an improved apparatus for carrying out the method of this invention.
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patent: 4622134 (1986-11-01), Kobayashi
patent: 4655925 (1987-04-01), Tabata et al.
patent: 4663044 (1987-05-01), Goronszy
patent: 4793930 (1988-12-01), Soeder et al.
patent: 4917805 (1990-04-01), Reid
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