Title:
逆浸透処理装置および逆浸透処理装置の洗浄方法
Document Type and Number:
Japanese Patent JP5798908
Kind Code:
B2
Abstract:
A reverse osmosis treatment device includes: a first pressure vessel for treating an untreated water to produce a primarily treated water and a first permeated water; a second pressure vessel for treating the primarily treated water to produce a secondarily treated water and a second permeated water; a first cleaning solution tank for storing a first cleaning solution for cleaning the first pressure vessel; and a second cleaning solution tank for storing a second cleaning solution for cleaning the second pressure vessel. Each of the first pressure vessel and the second pressure vessel has therein a reverse osmosis membrane element having a reverse osmosis membrane. The first cleaning solution tank is connected to the first concentrate outlet pipe of the first pressure vessel, and the second cleaning solution tank is connected to the inlet pipe for the primarily treated water of the second pressure vessel.
Inventors:
Kotaro Kitamura
Shinichi Yoshikawa
Hiroki Miyakawa
Shinichi Yoshikawa
Hiroki Miyakawa
Application Number:
JP2011277237A
Publication Date:
October 21, 2015
Filing Date:
December 19, 2011
Export Citation:
Assignee:
株式会社日立製作所
International Classes:
B01D61/08; B01D61/10; B01D61/58; B01D65/06; C02F1/44
Domestic Patent References:
| JP51099682A | ||||
| JP2001259381A | ||||
| JP9001141A | ||||
| JP2010104920A | ||||
| JP7144120A |
Other References:
有限会社 ブッカーズ編,膜の劣化とファウリング対策,株式会社 エヌ・ティー・エス,2008年 9月 5日,初版第一刷,p.140-143,311,312
Attorney, Agent or Firm:
Kenzo Matsuura