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Title:
METHOD OF TREATING GREASE-TRAP WASTE SOLUTION
Document Type and Number:
Japanese Patent JP2004358372
Kind Code:
A
Abstract:

To provide a waste water purification method where a grease-trap waste solution is treated, oil and fat, protein and starch are decomposed, and it is directly exhausted to river or lake as pure waste water, or can be fed to a purification tank.

At first, a waste solution is subjected to biodegradation treatment with grease-trap bacteria till an oil and fat purification ratio reaches ≥95%. The treated solution is subjected to parallel filtration with a specified high polymer membrane to make the waste solution transparent. In this case, the specified high polymer membrane consists of a hydrophilic high polymer, and the average pore size is 2 nm to 2 microns.


Inventors:
MANABE SEIICHI
SASAI HIROYUKI
HIGUCHI KUNIYOSHI
Application Number:
JP2003160349A
Publication Date:
December 24, 2004
Filing Date:
June 05, 2003
Export Citation:
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Assignee:
HIGUCHI KUNIYOSHI
International Classes:
B01D69/02; B01D29/11; B01D71/10; B01D71/68; C02F1/28; C02F1/44; C02F3/34; C02F9/00; (IPC1-7): C02F3/34; B01D29/11; B01D69/02; B01D71/10; B01D71/68; C02F1/28; C02F1/44; C02F9/00
Domestic Patent References:
JP2001238670A2001-09-04
JPH10323691A1998-12-08
JPH08173980A1996-07-09
JP2002018460A2002-01-22
JP2003001282A2003-01-07
JP2003024967A2003-01-28
JPH05245489A1993-09-24
JPH08267095A1996-10-15
JPH08309393A1996-11-26
JPH09234353A1997-09-09
JPH08281006A1996-10-29
JPH091183A1997-01-07
JPH05245472A1993-09-24
JPH08243576A1996-09-24
JPH1015587A1998-01-20
JPH0445895A1992-02-14
JPS5748305A1982-03-19



 
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