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, 210DIG29, B01D 2101, C02B 120, C02C 502
Patent
active
040466833
ABSTRACT:
An effective and efficient process and apparatus for treating a mother liquor including therein both suspended and dissolved impurities, and in particular, metal hydroxides, metal oxides and phosphate ions, at a concentration of less than 10 g/l, are provided. The process comprises admixing at least 0.5 ppm of an organic high molecular weight flocculating agent and after an interval at least 10 ppm of an inorganic metal salt flocculating agent therewith, subjecting the admixture to rotational flow to form a particulate layer of solids and simultaneously therewith, agitating the admixture, while maintaining the suspension liquor at a solids concentration of at least 10 g/l, and concurrently upwardly directing the suspension so that it flows through the agitated particulate layer and thereby intimately contacting flowing particles thereof for separating the particles from the treated mother liquor. A preliminary treatment removes dissolved matter including phosphate ions, and a clarified effluent results.
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Baba Toshinori
Kataoka Katsuyuki
Tsunoda Shogo
Bascomb, Jr. Wilbur L.
Ebara Infilco Kabushiki Kaisha
Therkorn Ernest G.
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