Title:
水処理基質の再生における又はに関する改良
Document Type and Number:
Japanese Patent JP2008532757
Kind Code:
A
Abstract:
In a method and apparatus for operating and regenerating ion exchange material a wash fluid or elution solution for rinsing the ion exchange material (1) is prepared, there is collected as a by-product of said preparation a first waste stream including cationic species to be eliminated, the ion exchange material (1) is subjected to a wash step in which there is eluted from the ion exchange material by the wash fluid or solution an anionic species to be eliminated and a second waste stream including the anionic species to be eliminated is obtained, the first waste stream (12) and the second waste stream (14) are combined to form a precipitate SW comprising a reaction product of said cationic species and said anionic species, and the precipitate is removed. The method provides an efficient means of eliminating undesired species from a circuit containing an ion exchange material to be regenerated.
Inventors:
Peter James Maul
Michael weight
Michael weight
Application Number:
JP2008501422A
Publication Date:
August 21, 2008
Filing Date:
March 17, 2006
Export Citation:
Assignee:
THE BOC GROUP PUBLIC LIMITED COMPANY
International Classes:
B01J49/00; C02F1/42; C02F1/46; C02F1/58; C02F3/34
Domestic Patent References:
| JPS4953474A | 1974-05-24 |
Foreign References:
| EP0226667A1 | 1987-07-01 |
Attorney, Agent or Firm:
Miyazaki Isho