To provide a liquid purifying apparatus capable of reducing discharge amount of backwashing liquid flowing out during backwashing of a filter.
The water purifying apparatus 10 is provided with a raw water tank 11 storing raw water supplied from a water supply source; a pump P1 feeding the raw water in the raw water tank 11 to a plurality of filters 12; a filtrate tank 15 storing filtrate purified by passing through the filters 12; a backwashing water tank 16 storing backwashing water; and a pump P2 feeding backwashing liquid in the backwashing water tank 16 to the filters 12. A three-way valve 22 serving as a flow path selector valve for switching flow-out direction of backwashing water based on the lapse of time after starting backwashing, and a control means 26 of the three-way valve 22, are provided as a mechanism for recovering backwashing water with a turbidity less than a given value from backwashing water flowing out of the filters 12 during backwashing.
HAKATAKO KANRI KK
JP2007098270A | 2007-04-19 | |||
JP2001121421A | 2001-05-08 | |||
JPH08206656A | 1996-08-13 | |||
JP2007130587A | 2007-05-31 | |||
JPH11300116A | 1999-11-02 |
Mikio Hotta
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