Title:
FILTRATION METHOD AND FILTER DEVICE
Document Type and Number:
Japanese Patent JP2014184374
Kind Code:
A
Abstract:
PROBLEM TO BE SOLVED: To provide a filtration method and a filter device where the falling of filtration efficiency and the shortening of the exchange interval of a separation membrane are not caused when raw water including turbid components hard to be cleaned such as an oil droplet, TEP and the like.SOLUTION: A filtration method to filter raw water including turbid components using a membrane and repeatedly performing steps: a cake layer forming step to form a cake layer to capture the turbid components included in the raw water on the surface of the separation membrane; a filtration step to filter the raw water by passing the raw water from a cake layer side formed on the separation membrane; and a cake layer removing step to remove a cake layer capturing the turbid components from the surface of the separation membrane, and a filter device are provided.
More Like This:
Inventors:
KASHIWABARA HIDEKI
Application Number:
JP2013059764A
Publication Date:
October 02, 2014
Filing Date:
March 22, 2013
Export Citation:
Assignee:
SUMITOMO ELECTRIC INDUSTRIES
International Classes:
B01D37/02; B01D71/26; B01D71/34; B01D71/36; B01J20/14; C02F1/44
Domestic Patent References:
| JP2004130197A | 2004-04-30 | |||
| JPH04114722A | 1992-04-15 | |||
| JPH10296057A | 1998-11-10 | |||
| JPS5377884A | 1978-07-10 |
Foreign References:
| WO2012043433A1 | 2012-04-05 |
Attorney, Agent or Firm:
Tetsuji Ueshiro
Naomi Jinno
Naomi Jinno
Previous Patent: PURE WATER MANUFACTURING APPARATUS
Next Patent: METHOD FOR WASHING NATURAL BALANCE TYPE FILTRATION DEVICE
Next Patent: METHOD FOR WASHING NATURAL BALANCE TYPE FILTRATION DEVICE