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Title:
WATER TREATMENT DEVICE
Document Type and Number:
WIPO Patent Application WO/2015/136902
Kind Code:
A1
Abstract:
A water treatment device comprises an electric pump (3) for taking in and discharging water from a well or a water storage tank and a first filtering device (4) for removing a suspended matter component contained in the well water, and the first filtering device (4) is provided with a switching valve (6) that can selectively switch between filtration and backwashing. Moreover, a purified water channel (7) to supply purified water filtered by the first filtering device (4) and a waste water channel (8) to discharge waste water used to backwash the first filtering device (4) are connected via the switching valve (6). Furthermore, a second filtering device (5) comprises a fine filtering material (15) and a casing (16) and is provided with a flow rate regulating device (19) to make the flow rate in the waste water channel (8) lower than the flow rate in the purified water channel (7) during backwashing.

Inventors:
KATO, Tsutomu
NISHIDA, Yuki
ISAJI, Ayaka
INAMOTO, Yoshihiro
TAKAYAMA, Yoshihiko
Application Number:
JP2015/001218
Publication Date:
September 17, 2015
Filing Date:
March 06, 2015
Export Citation:
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Assignee:
PANASONIC INTELLECTUAL PROPERTY MANAGEMENT CO., LTD. (1-61, Shiromi 2-chome Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
International Classes:
B01D36/02; B01D24/00; B01D24/40; B01D24/46; B01D29/66; B01D61/16; C02F1/44
Foreign References:
JP2003340435A2003-12-02
JPH115084A1999-01-12
JP2000202218A2000-07-25
JP2007245131A2007-09-27
JP2000024417A2000-01-25
JP2007315252A2007-12-06
JP2000300913A2000-10-31
JPH04986U1992-01-07
Attorney, Agent or Firm:
FUJII, Kentaro et al. (1-61, Shiromi 2-chome, Chuo-ku, Osaka-sh, Osaka 07, 〒5406207, JP)
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