Water treatment installation for a tangential filtration loop

Details Water treatment installation for a tangential filtration loop Water treatment installation for a tangential filtration loop

1990-12-10

1993-12-21

Wyse, Thomas

Liquid purification or separation

With gas-liquid surface contact means

With separator

2101951, 210202, 210258, 21032169, 2105121, C02F 178, B01D 6100

Patent

active

052718301

ABSTRACT:
An installation for the filtration and cleansing of liquids, notably water, of the type having a loop for the circulation of the water to be treated, including at least one tangential filtration membrane, comprising a new tangential membrane filtration installation, with ozone injection, enabling the surface, internal and chemical clogging of the membrane to be restricted. The installation includes means for the addition of an oxidizing gas to the liquid to be treated, in the loop upstream of the membrane, so as to form microbubbles of said gas with a size such that they create turbulence in the liquid at the membrane and this turbulence, combined with the phenomenon of oxidation, restricts the clogging of said membrane and leads to an improvement in the flow rate and in the physical/chemical qualities of the filtrate. If necessary, it includes means for the injecting of chemical reagents and/or absorbents into the filtration loop.

REFERENCES:
patent: 3992301 (1976-11-01), Shippey et al.
patent: 4021347 (1977-05-01), Teller et al.
patent: 4569759 (1986-02-01), Ben Aim et al.
patent: 4734207 (1988-03-01), Calloni et al.
patent: 4894149 (1990-01-01), Block
patent: 5114576 (1992-05-01), Ditzler et al.
Chemical Abstracts, vol. 109, No. 2, Jul. 11, 1988, p. 318, resume No. 14477f Columbus, Ohio, US; W. B. Bedwell et al: "Crossflow microfiltration-fouling mechanisms studies", and Sep. Sci. Technol. 1988, 23(6-7).
Chemical Abstracts, vol. 111, No. 16, Oct. 16, 1989, p. 378, resume No. 140167v, Columbus, Ohio, US; and JP-A-01 04 289 (Japan Organo Co., Ltd) Sep. 1, 1989.

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