Title:
WASTE LIQUID TREATMENT METHOD AND APPARATUS FOR TREATING OIL-CONTAINING WASTE LIQUID
Document Type and Number:
WIPO Patent Application WO/2017/183236
Kind Code:
A1
Abstract:
The present invention provides a waste liquid treatment method and apparatus with which it is possible to treat an oil-containing waste liquid in an efficient, simple manner without requiring frequent maintenance of the apparatus. With the waste liquid treatment method and apparatus for treating an oil-containing waste liquid, the oil-containing waste liquid is supplied to piping or is retained in a retaining tank; the waste liquid supplied to the piping or retained in the retaining tank is dissolved or dispersed in an aqueous phase by performing pretreatment by supplying a reagent thereto; and vacuum concentration is performed in order to obtain condensed water and a concentrated liquid from the pretreated waste liquid.
Inventors:
KOBAYASHI TAKUYA (JP)
TSUKAMOTO TOSHIO (JP)
TSUKAMOTO TOSHIO (JP)
Application Number:
PCT/JP2017/000175
Publication Date:
October 26, 2017
Filing Date:
January 05, 2017
Export Citation:
Assignee:
SWING CORP (JP)
International Classes:
C02F1/04; B01D61/02; B01D61/58; C02F1/44; C02F3/12; C02F9/02; C02F9/04; C02F9/10; C02F9/14
Foreign References:
| JPH08332477A | 1996-12-17 | |||
| JP2002336841A | 2002-11-26 | |||
| JPH09290249A | 1997-11-11 | |||
| JP2002086135A | 2002-03-26 | |||
| JPH05115857A | 1993-05-14 | |||
| JP2005270902A | 2005-10-06 |
Attorney, Agent or Firm:
AXIS PATENT INTERNATIONAL (JP)
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