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Priority to UAA200509032ApriorityCriticalpatent/UA84142C2/en
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Separation Of Suspended Particles By Flocculating Agents
(AREA)
Separation Using Semi-Permeable Membranes
(AREA)
Abstract
A method for the treatment and filtration of fluids, i.e. liquid effluents such as raw water containing organic pollutants in a solution, using gravity separation means (10) such as a decantation and flotation means, and membrane separation means (13) in a finishing stage, wherein a first pulverulent reagent (1) is introduced into the flow of a fluid to be treated upstream from gravity separation, and a second pulverulent reagent (2) is introduced downstream from the membrane separation. The inventive method is characterized in that the coagulant required for separation is injected before the first pulverulent reagent; in that the first and second pulverulent reagents (1,2) have different characteristics, i.e. in terms of granulometry, adsorption capacity adapted to the pollutants which are to be eliminated; and in that the second pulverulent reagent (2) is recycled from membrane separation means (13) upstream from the gravity separation means (10).
UAA200509032A2003-02-262003-02-26Method and installation for purification of liquid effluents, containing pollutants
UA84142C2
(en)