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Title:
METHOD FOR TREATING FAT-CONTAINING WASTEWATER
Document Type and Number:
WIPO Patent Application WO/2013/146853
Kind Code:
A1
Abstract:
Provided is a method for treating fat-containing wastewater making it possible to purify fat-containing wastewater at high efficiency and efficiently recover energy from an organic component in the wastewater, and to stabilize a methane fermentation process, improve treatment efficiency, reduce the size of a methane fermentation tank, improve the efficiency of separating fat from the fat-containing wastewater, reduce the volume of sludge generated, and so forth. A method for treating fat-containing wastewater, the method being characterized in subjecting fat-containing wastewater to an acid generation reaction under alkaline conditions without having separated the fat and the wastewater, and next running a methane generation reaction while still under alkaline conditions. Also, a method for treating fat-containing wastewater, the method being characterized in running a methane generation reaction in a reaction tank packed with a fluidized bed carrier made of resin.

Inventors:
TOKUTOMI TAKAAKI (JP)
SHINTOU HIDEAKI (JP)
Application Number:
PCT/JP2013/058932
Publication Date:
October 03, 2013
Filing Date:
March 27, 2013
Export Citation:
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Assignee:
KURITA WATER IND LTD (JP)
International Classes:
C02F3/28; C02F3/30
Foreign References:
JP2002153897A2002-05-28
JP2000271593A2000-10-03
JPH0435794A1992-02-06
JPS6171891A1986-04-12
JPH01180295A1989-07-18
JPH0445891A1992-02-14
JPH09122683A1997-05-13
JP2001038378A2001-02-13
JPH11347588A1999-12-21
JP2009148705A2009-07-09
JP2001225094A2001-08-21
JP2003326295A2003-11-18
JPH05161900A1993-06-29
JP2000237787A2000-09-05
JP2010012446A2010-01-21
JP2006247601A2006-09-21
Attorney, Agent or Firm:
SHIGENO, Tsuyoshi (JP)
Takeshi Shigeno (JP)
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