Apparatus for electrodeionization of water

Details Apparatus for electrodeionization of water Apparatus for electrodeionization of water

2004-03-04

2010-02-23

Phasge, Arun S (Department: 1795)

Chemistry: electrical and wave energy

Apparatus

Electrophoretic or electro-osmotic apparatus

Reexamination Certificate

active

07666288

ABSTRACT:
Silica and boron are particularly removed at high rate in processing by the electrodeionization apparatus. An electrodeionization apparatus has an anolyte compartment17having an anode11, a catholyte compartment18having a cathode12, concentrating compartments15, and desalting compartments16. The concentrating compartments15and the desalting compartments16are alternately formed between the anolyte compartment17and the catholyte compartment18by alternately arranging a plurality of anion-exchange membranes13and a plurality of cation-exchange membranes14. The desalting compartments16and the concentrating compartments15are filled with ion-exchanger. The anion exchanger/cation exchanger volume ratio is 8/2 to 5/5. Electrode water flows into the anolyte compartment17and the catholyte compartment18. Concentrated water is introduced into the concentrating compartments15. Raw water is fed into the desalting compartment16to produce the deionized water from the desalting compartment16. Water containing silica or boron at a lower concentration than the raw water is introduced into the concentrating compartments15as the concentrated water in a direction from a side near an outlet for the deionized water toward a side near an inlet for the raw water of the desalting compartments16. At least a part of concentrated water flowing out of the concentrating compartments15is discharged out of a circulatory system.

REFERENCES:
patent: 5292422 (1994-03-01), Liang et al.
patent: 5593563 (1997-01-01), Denoncourt et al.
patent: 6248226 (2001-06-01), Shinmei et al.
patent: 6274019 (2001-08-01), Kuwata
patent: 6649037 (2003-11-01), Liang et al.
patent: 6733646 (2004-05-01), Sato et al.
patent: 6824662 (2004-11-01), Liang et al.
patent: 2 461 558 (2003-04-01), None
patent: 1 222 954 (2002-07-01), None
patent: 4-72567 (1992-11-01), None
patent: 6-506867 (1994-08-01), None
patent: 8-150326 (1996-06-01), None
patent: 2699256 (1997-09-01), None
patent: 10-43554 (1998-02-01), None
patent: 2751090 (1998-02-01), None
patent: 2001-314868 (2001-11-01), None
patent: 2002-205069 (2002-07-01), None
patent: WO 92/11089 (1992-07-01), None
patent: WO 97/46492 (1997-12-01), None

Affiliated with

Also associated with

Rating

Apparatus for electrodeionization of water does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Apparatus for electrodeionization of water, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Apparatus for electrodeionization of water will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-4161079