Liquid purification or separation – Flow – fluid pressure or material level – responsive – Diverse sensing means
Patent
1984-09-04
1986-12-02
Wyse, Tom
Liquid purification or separation
Flow, fluid pressure or material level, responsive
Diverse sensing means
210147, 2102212, 210275, 210530, B01D 2101
Patent
active
046263454
ABSTRACT:
Apparatus for removing suspended particles from water comprises outer and inner concentrically arranged tanks and a carriage arranged on top of the outer tank for movement around the same. Unclarified water is introduced into the inner tank along with flocculating material for combining with the suspended particles in the water, and the mixture passes from the inner to the outer tank. Gaseous bubbles are introduced into the mixture for attaching to the flocculated suspended particles and floating them to the surface of the water in the outer tank, forming a sludge layer thereon. A scoop device mounted on the carriage removes the sludge for discharge from the apparatus. A plurality of filter beds are arranged near the bottom of the outer tank for removing the remaining precipitated flocs to complete the clarification of the water for discharge, and suction apparatus is arranged above the filter beds for cleaning the same. Timer means control the positioning of the suction apparatus over predetermined filter beds and the cleaning operation thereof.
REFERENCES:
patent: 3171804 (1965-03-01), Rice
patent: 3307701 (1967-03-01), Krofta
patent: 3820659 (1974-06-01), Parlette
patent: 4022696 (1977-05-01), Krofta
patent: 4303517 (1981-12-01), Love et al.
patent: 4377485 (1983-03-01), Krofta
van Vuuren et al, "Treatment of Water from Eutrophied Impoundments", paper presented at TWSA Specialized Conference on Eutrophication & Water Supply, Vienna, Austria, Oct. 1981.
Greenberg Sidney
Lenox Institute for Research, Inc.
Wyse Tom
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