METHOD FOR EVALUATING CATION-EXCHAGE RESIN AND METHOD FOR CONTROLLING WATER TREATMENT SYSTEM USING THE SAME

Title:

METHOD FOR EVALUATING CATION-EXCHAGE RESIN AND METHOD FOR CONTROLLING WATER TREATMENT SYSTEM USING THE SAME

Document Type and Number:

WIPO Patent Application WO/2004/008134

Kind Code:

A1

Abstract:

A method for a cation-exchange resin wherein a strongly acidic cation-exchage resin is contacted with an aqueous eluting solution and the polystyrenesulfonic acid being eluted from this resin is measured, which comprises setting a plurality of molecular weight ranges in the molecular weight distribution of the polystyrenesulfonic acid eluted, and evaluating the performance capability of the cation-exchange resin based on the correspondence relationship of each molecular weight range with the amount eluted in said each molecular weight range. The evaluation method allows on-target and precise evaluation of the performance capability of a cation-exchange resin being independent of the structure of a base resin and the circumstance under which it is used, which leads to the determination of the optimum time for the exchange of a resin in a water treatment system using a cation-exchange resin, and thus to the extension of exchange of a resin and the reduction of an operation cost for the system.

More Like This:

JPH01164724	SEPARATION OF ELEMENT AND DEVICE THEREFOR
JP3727212	TREATING DEVICE FOR DISCHARGE WATER CONTAINING BORON AND TREATING METHOD THEREFOR
JP5407156	Microbial power generation method and microbial power generation equipment

Inventors:

NAGATA YUSUKE (JP)
OHASHI SHINICHI (JP)

Application Number:

PCT/JP2003/005889

Publication Date:

January 22, 2004

Filing Date:

May 12, 2003

Export Citation:

Click for automatic bibliography generation Help

Assignee:

ORGANO CORP (JP)
NAGATA YUSUKE (JP)
OHASHI SHINICHI (JP)

International Classes:

B01J39/04; B01J47/00; B01J47/14; G01N30/00; C02F1/42; G01N30/26; G01N30/86; G01N30/88; G01N30/89; (IPC1-7): G01N30/00; B01J39/08; C02F1/42

Foreign References:

JPH09210977A	1997-08-15
JPH07159587A	1995-06-23
JPH09257778A	1997-10-03
JPH102890A	1998-01-06
JPH10282082A	1998-10-23

Attorney, Agent or Firm:

Ban, Toshimitsu (Shinko Bldg. 1-9, Nishishinjuku 8-chom, Shinjuku-ku Tokyo, JP)

Download PDF:

View/Download PDF PDF Help

Previous Patent: BUILDING MANAGEMENT SYSTEM AND ITS METHOD

Next Patent: METHOD FOR ONLINE MEASUREMENT OF MOLTEN PHASES