Title:
REDUCTION OF VOLUME OF ORGANIC SLUDGE
Document Type and Number:
Japanese Patent JP3447024
Kind Code:
B2
Abstract:
PROBLEM TO BE SOLVED: To effectively reduce the vol. of org. sludge by utilizing an aerobic digestion method and to reduce the cost for the heating used in solubilization or the adding cost of alkali.
SOLUTION: A method for reducing the vol. of org. sludge has a first aerobic digestion process aerobically digesting org. sludge, a solid-liquid separation process separating digested sludge into a solid and a liquid, a solubilizing process heating at least a part of the separated sludge from the solid-liquid separation process or treating the same with alkali. The first aerobic digestion process can be also used as a second aerobic digestion process by returning solubilized sludge to the first aerobic digestion process or solubilized sludge can be sent to an activated sludge treatment process of org. waste water.
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Inventors:
Katsuyuki Kataoka
Application Number:
JP20713295A
Publication Date:
September 16, 2003
Filing Date:
August 14, 1995
Export Citation:
Assignee:
Ebara Corporation
International Classes:
C02F11/00; C02F11/02; (IPC1-7): C02F11/02; C02F11/00
Domestic Patent References:
| JP2293095A | ||||
| JP38496A | ||||
| JP6226284A | ||||
| JP6206088A | ||||
| JP9234497A | ||||
| JP5719719B1 | ||||
| JP6509986A |
Attorney, Agent or Firm:
Shohei Oguri (8 outside)
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