Title:
METHOD AND APPARATUS FOR TREATING AQUEOUS MEDIUM
Document Type and Number:
WIPO Patent Application WO/2000/047519
Kind Code:
A1
Abstract:
A method for treating an aqueous medium which comprises a first step treatment wherein an aqueous medium to be treated is subjected to an ordinary hydrothermal reaction or an ordinary electrolysis, to thereby decompose easily decomposable substances, ammonia or organic compounds capable of being decomposed by electrolysis alone, and a second step treatment wherein the resulting aqueous medium is subjected to a hydrothermal electrolysis reaction, to thereby decompose remaining organic substances. The employment of the method results in marked decrease of the electric power consumption in the second step of hydrothermal electrolysis. The method can be used for providing an apparatus and a method for treating an aqueous medium at a reduced running cost through decreasing the electric power consumption required for hydrothermal electrolysis reaction.
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Inventors:
NISHIMURA TATSUYA (JP)
SERIKAWA ROBERTO MASAHIRO (JP)
SU QINGQUAN (JP)
ISAKA MASAHIRO (JP)
USUI TAKASHI (JP)
SERIKAWA ROBERTO MASAHIRO (JP)
SU QINGQUAN (JP)
ISAKA MASAHIRO (JP)
USUI TAKASHI (JP)
Application Number:
PCT/JP2000/000743
Publication Date:
August 17, 2000
Filing Date:
February 10, 2000
Export Citation:
Assignee:
EBARA CORP (JP)
NISHIMURA TATSUYA (JP)
SERIKAWA ROBERTO MASAHIRO (JP)
SU QINGQUAN (JP)
ISAKA MASAHIRO (JP)
USUI TAKASHI (JP)
NISHIMURA TATSUYA (JP)
SERIKAWA ROBERTO MASAHIRO (JP)
SU QINGQUAN (JP)
ISAKA MASAHIRO (JP)
USUI TAKASHI (JP)
International Classes:
B01D53/32; B01D53/77; B01J3/04; B01J10/00; B01J19/00; B01J19/18; B01J19/26; C02F1/461; C02F1/467; C02F1/02; C02F1/74; (IPC1-7): C02F1/461; B01J3/00; B01J3/02; C02F1/02; C02F1/74; C25B3/02; C25B9/00
Domestic Patent References:
| WO1999007641A1 | 1999-02-18 | |||
| WO1988000926A1 | 1988-02-11 | |||
| WO1991013834A1 | 1991-09-19 |
Foreign References:
| JPH09215982A | 1997-08-19 | |||
| JPS50155347U | 1975-12-23 | |||
| US3975247A | 1976-08-17 | |||
| JPS52114570A | 1977-09-26 | |||
| JPH0852478A | 1996-02-27 |
Other References:
See also references of EP 1167298A4
Attorney, Agent or Firm:
Shamoto, Ichio (Section 206 2-1, Ohtemachi 2-chome Chiyoda-ku Tokyo, JP)
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