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Title:
DEVICE AND PROCESS FOR TREATING ORGANIC WASTEWATER
Document Type and Number:
Japanese Patent JP2001286884
Kind Code:
A
Abstract:

To provide an organic wastewater treatment device capable of effectively reducing the amount of sludge generated and easily performing normal solid-liquid separation in a sedimentation vessel or the like and to provide an organic wastewater treatment process using the device.

This treatment device is provided with an aerobic biological treatment device for subjecting organic wastewater to activated sludge treatment, and a spore germination vessel for mixing sludge containing endospore forming bacteria with a germination promoter and germinating spores of the endospore forming bacteria, to convert the spores into vegetative cells and to produce a mixed liquid containing the vegetative cells of endospore forming bacteria wherein the mixed liquid thus produced in the spore germination vessel is supplied to the aerobic biological treatment device. This treatment process for feeding organic wastewater into the aerobic biological treatment device to subject the organic wastewater to activated sludge treatment, comprises: mixing sludge containing endospore forming bacteria with a germination promoter and germinating spores of the endospore forming bacteria, to convert the spores into vegetative cell; and supplying the resulting sludge containing the vegetative cells of endospore forming bacteria to the aerobic biological treatment device.


Inventors:
NAKATANI TATSUO
TAKAOKA KAZUE
IRIE RIYOUZO
Application Number:
JP2000102533A
Publication Date:
October 16, 2001
Filing Date:
April 04, 2000
Export Citation:
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Assignee:
MITSUI SHIPBUILDING ENG
IRIE RIYOUZO
International Classes:
C12M1/00; C02F3/12; C02F3/34; C12N1/20; C12N1/38; C12N3/00; C12R1/07; (IPC1-7): C02F3/12; C02F3/34; C12M1/00; C12N1/20; C12N1/38; C12N3/00
Attorney, Agent or Firm:
Kawakita Takecho