Invention Grant
- Patent Title: Water treatment process, and membrane separation process and water treatment plant suitable therefor
- Patent Title (中): 水处理工艺和膜分离工艺及适用的水处理厂
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Application No.: US13126063Application Date: 2009-11-09
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Publication No.: US08758624B2Publication Date: 2014-06-24
- Inventor: Wolfgang Neubrand , Juergen Johann , Swen Beusshausen
- Applicant: Wolfgang Neubrand , Juergen Johann , Swen Beusshausen
- Applicant Address: AT
- Assignee: P & LS Holding GmbH
- Current Assignee: P & LS Holding GmbH
- Current Assignee Address: AT
- Agency: DLA Piper LLP (US)
- Priority: DE102008057669 20081111
- International Application: PCT/EP2009/007981 WO 20091109
- International Announcement: WO2010/054782 WO 20100520
- Main IPC: B01D15/04
- IPC: B01D15/04 ; C02F1/42 ; B01D63/12 ; C02F1/469

Abstract:
A description is given of a multistage process for treating water, wherein a water stream is purified in a membrane separation stage and a downstream deionization unit having at least one concentrate chamber and at least one diluate chamber, wherein the water stream is separated in the membrane separation device into a concentrate stream and at least two permeate streams of different electrical conductivity, and wherein at least the permeate stream having the highest electrical conductivity is fed at least partially into the at least one concentrate chamber and at least the permeate stream having the lowest electrical conductivity is fed at least partially into the at least one diluate chamber of the downstream deionization unit. In addition, a membrane separation device is described which is constructed in such a manner that at least two permeate streams having different electrical conductivity can be generated therein, and also a water treatment plant, comprising at least one such membrane separation device and at least one deionization unit having at least one concentrate chamber and at least one diluate chamber.
Public/Granted literature
- US20110259824A1 WATER TREATMENT PROCESS, AND MEMBRANE SEPARATION PROCESS AND WATER TREATMENT PLANT SUITABLE THEREFOR Public/Granted day:2011-10-27
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