Water treatment system with backwashable precise prefilter unit

Details Water treatment system with backwashable precise prefilter unit Water treatment system with backwashable precise prefilter unit

1999-08-24

2000-11-21

Fortuna, Ana

Liquid purification or separation

Serially connected distinct treating with or without storage...

With storage unit

210660, 210663, 210282, 210 87, 210670, 21033301, B01D 2502

Patent

active

061498092

ABSTRACT:
A water treatment system with a backwashable precise prefilter unit includes a backwashable prefilter column installation and a five-channel ball valve. The five-channel ball valve connects the water supply with both ends of the backwashable prefilter column installation. The backwashable prefilter column installation may be composed of three filter columns arranged in series: the first packed with quartz sand, the second with Cu-Zn alloy, and the third with sintered microporous polyethylene. The five-channel ball valve has three different working positions, namely, a cleaning water position, a discharging water position, and a backwashing position. The useful life of this backwashable precise prefilter unit can be more than three years. This backwashable precise prefilter unit may be used for independent water cleaners, as well as the precise prefilter for different kinds of water treatment systems, such as reverse osmosis water treatment systems.

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Handbook of Industrial Membranes, First Edition, Figure 4., p. 529.

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