Title:
WASTE WATER TREATMENT SYSTEM
Document Type and Number:
WIPO Patent Application WO/2022/210525
Kind Code:
A1
Abstract:
A waste water treatment system for treating recycle waste water generated when a desalination device for desalinating water containing ammonia is subjected to regenerative treatment, using an aqueous acidic solution, the system comprising: a bipolar membrane electrodialyzer that separates, from the recycle waste water containing an ammonium salt generated in a reaction between an aqueous acidic solution and ammonia captured by the desalination device or from a liquid derived from the recycle waste water, an aqueous solution containing an acidic solute identical to that of the aqueous acidic solution, as a recycled aqueous acidic solution, wherein the recycled aqueous acidic solution is used as at least a portion of the aqueous acidic solution in regeneration of the desalination device.
Inventors:
ITO YOSHIAKI (JP)
FUKUDA TOSHIHIRO (JP)
EGAWA KAORU (JP)
FUKUDA TOSHIHIRO (JP)
EGAWA KAORU (JP)
Application Number:
PCT/JP2022/014967
Publication Date:
October 06, 2022
Filing Date:
March 28, 2022
Export Citation:
Assignee:
MITSUBISHI HEAVY IND LTD (JP)
MITSUBISHI POWER LTD (JP)
MITSUBISHI POWER LTD (JP)
International Classes:
B01D61/44; B01J49/53; C02F1/42; C02F1/44; C02F1/469
Foreign References:
| JP2017217596A | 2017-12-14 | |||
| JP2000354772A | 2000-12-26 | |||
| JPH09271781A | 1997-10-21 | |||
| JPH11128691A | 1999-05-18 | |||
| JP2013202604A | 2013-10-07 | |||
| JPH10272371A | 1998-10-13 |
Attorney, Agent or Firm:
SSIP PATENT ATTORNEY CORPORATION (JP)
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