Title:
APPARATUS AND METHOD FOR TREATING ORGANIC-CONTAINING WASTEWATER
Document Type and Number:
WIPO Patent Application WO/2015/037557
Kind Code:
A1
Abstract:
The present invention provides a treatment apparatus and a treatment method for organic-containing wastewater, the treatment apparatus being provided with: an aerobic tank for aerobic treatment of organic-containing wastewater under aerobic conditions; a microfiltration or ultrafiltration membrane separation apparatus for solid-liquid separation of treated water in the aerobic tank; a reverse osmosis membrane or nano membrane separation apparatus for demineralization treatment of the filtrate from the microfiltration or ultrafiltration membrane separation apparatus; and an evaporative concentration apparatus for further concentration of concentrated water from the reverse osmosis membrane or nano membrane separation apparatus. Organic matter can be effectively removed, the treatment volume of the evaporative concentration apparatus reduced, and the purified water recovery rate of the entire system improved.
Inventors:
MIKI KAZUYA (JP)
KAWAGISHI TOMOKI (JP)
KAWAGISHI TOMOKI (JP)
Application Number:
PCT/JP2014/073649
Publication Date:
March 19, 2015
Filing Date:
September 08, 2014
Export Citation:
Assignee:
MITSUBISHI RAYON CO (JP)
International Classes:
C02F9/00; B01D61/02; B01D61/14; C02F1/04; C02F1/42; C02F1/44; C02F3/02
Foreign References:
| JP2001070989A | 2001-03-21 | |||
| JPH03123698A | 1991-05-27 | |||
| JPH10323664A | 1998-12-08 | |||
| JPH03131394A | 1991-06-04 | |||
| JPS6397298A | 1988-04-27 | |||
| JPS61204081A | 1986-09-10 | |||
| JP2007000789A | 2007-01-11 | |||
| JP2012192367A | 2012-10-11 | |||
| JP2006204977A | 2006-08-10 | |||
| JPS5966398A | 1984-04-14 | |||
| JP2013075269A | 2013-04-25 | |||
| JP2012170894A | 2012-09-10 |
Attorney, Agent or Firm:
SHIGA Masatake et al. (JP)
Masatake Shiga (JP)
Masatake Shiga (JP)
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