Liquid purification or separation – With alarm – indicator – register – recorder – signal or... – Responsive to fluid flow
Patent
1976-05-13
1977-09-06
Bascomb, Jr., Wilbur L.
Liquid purification or separation
With alarm, indicator, register, recorder, signal or...
Responsive to fluid flow
210 49, 210 51, 210 53, 210 54, C02B 120
Patent
active
040466841
ABSTRACT:
A solid-liquid separation process is provided for clarifying water containing colloidally-suspended solids such as clay, metal minerals and hydroxides, organic and inorganic materials and like substances wherein the solids concentration in the mother liquor is less than 10 g/l. The colloidally-suspended solids are converted to a coagulum of substantially spherical particles characterized by a high density and large particle size and generally exhibit different properties than the flocs thereof. The coagulum separates from a supernatant at about 5 to about 10 times the precipitation rate of a floc treated according to a conventional flocculation-precipitation method. The resulting sludge exhibits superior condensability and is extremely suitable for treatment by a hydroextraction technique. The water obtained from the treatment is unusually clear and free of suspended matter. Apparatus for carrying out said process is described, said apparatus including stirrers for introducing shear energy within specified critical limits.
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Kataoka Katsuyuki
Tsunoda Shogo
Bascomb, Jr. Wilbur L.
Ebara Infilco Kabushiki Kaisha
Hruskoci Peter A.
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