Invention Grant
- Patent Title: Co-producing apparatus for salt and fresh water and co-producing method of the same
- Patent Title (中): 盐和淡水共同生产设备及其共同生产方法
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Application No.: US13202927Application Date: 2009-08-07
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Publication No.: US08795531B2Publication Date: 2014-08-05
- Inventor: Kazuhisa Takeuchi , Yoshiaki Ito , Hidemasa Kakigami , Hideo Iwahashi , Katsunori Matsui , Kenji Tanaka
- Applicant: Kazuhisa Takeuchi , Yoshiaki Ito , Hidemasa Kakigami , Hideo Iwahashi , Katsunori Matsui , Kenji Tanaka
- Applicant Address: JP Tokyo
- Assignee: Mitsubishi Heavy Industries, Ltd.
- Current Assignee: Mitsubishi Heavy Industries, Ltd.
- Current Assignee Address: JP Tokyo
- Agency: Westerman, Hattori, Daniels & Adrian, LLP
- Priority: JP2009-129468 20090528
- International Application: PCT/JP2009/064061 WO 20090807
- International Announcement: WO2010/137185 WO 20101202
- Main IPC: B01D61/58
- IPC: B01D61/58 ; B01D61/02 ; C02F1/44 ; C02F9/00 ; B01D61/44 ; B01D61/42 ; C02F1/66 ; C02F1/04 ; C02F103/08 ; C02F1/469
Abstract:
An embodiment of the present invention includes: a recycle line that brings a part of salt-enriched membrane separation concentrated water 26 back to the rear flow side of a pretreatment apparatus 12; a water discharge line that discharges the remained concentrated water into a sea area; and a control apparatus 31 that controls to adjust the ratio between the discharging amount of the discharging membrane separation concentrated water to be discharged into a sea area and the supplying amount of supplying seawater. A pH is set to be equal to or less than 7.3 by adding acid 21. The salt 18 is obtained from the dryer 19, and produced water (fresh water) 29 is obtained by combining evaporated water 28 supplied from the evaporator 16 with the permeated water 24 supplied from the reverse osmosis membrane apparatus 25.
Public/Granted literature
- US20110303606A1 CO-PRODUCING APPARATUS FOR SALT AND FRESH WATER AND CO-PRODUCING METHOD OF THE SAME Public/Granted day:2011-12-15
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