Membrane separation device with membrane module and washing appa

Details Membrane separation device with membrane module and washing appa Membrane separation device with membrane module and washing appa

1998-10-20

2000-11-07

Walker, W. L.

Liquid purification or separation

Filter

With residue removing means or agitation of liquid

21032175, 21032176, 21032184, 21032185, 210417, 210418, 210420, 2104934, B01D 6310

Patent

active

061423122

ABSTRACT:
A membrane separation device includes a washing apparatus and a membrane module. The washing apparatus is formed of a vessel for accommodating the membrane module therein, a first tank and a second tank for accommodating washing liquid for washing the membrane module in the vessel and connected to the vessel, a compressed gas feeding device connected to the first and second tanks for selectively feeding compressed gas into the first and second tanks to flow out the liquid therefrom, and conduits connected among the vessel, first and second tanks, and compressed gas feeding device. A conduit selecting device is attached to the conduits for feeding the washing liquid in one of first and second paths. In the first path, the compressed gas in the compressed gas feeding device is fed into the first tank, and the liquid in the first tank is fed into the vessel through the liquid inlet to wash the membrane module accommodated therein and is led to the second tank. In the second path, the compressed gas in the compressed gas feeding device is fed into the second tank, and the liquid in the second tank is fed into the vessel through the liquid inlet to wash the membrane module and is led to the first tank.

REFERENCES:
patent: 2619974 (1952-12-01), Daley et al.
patent: 3970560 (1976-07-01), Metzger
patent: 5858229 (1999-01-01), Uemura et al.
Database WP1, Section PQ, Week 9616, Derwent Publications Ltd., London, GB; Class P43, AN 96-155498, XP002094026.

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