JPS57144099A - Anaerobic digestive method for organic sludge - Google Patents

Anaerobic digestive method for organic sludge

Info

Publication number
JPS57144099A
JPS57144099A JP56027654A JP2765481A JPS57144099A JP S57144099 A JPS57144099 A JP S57144099A JP 56027654 A JP56027654 A JP 56027654A JP 2765481 A JP2765481 A JP 2765481A JP S57144099 A JPS57144099 A JP S57144099A
Authority
JP
Japan
Prior art keywords
gaseous
fed
tank
sludge
concd
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Pending
Application number
JP56027654A
Other languages
Japanese (ja)
Inventor
Masamitsu Ito
Tsutomu Onuma
Masahiro Kon
Naomichi Mori
Ichiro Nakajima
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies Ltd
Original Assignee
Hitachi Plant Construction Co Ltd
Hitachi Plant Technologies Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed by Hitachi Plant Construction Co Ltd, Hitachi Plant Technologies Ltd filed Critical Hitachi Plant Construction Co Ltd
Priority to JP56027654A priority Critical patent/JPS57144099A/en
Publication of JPS57144099A publication Critical patent/JPS57144099A/en
Pending legal-status Critical Current

Links

Classifications

    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y02—TECHNOLOGIES OR APPLICATIONS FOR MITIGATION OR ADAPTATION AGAINST CLIMATE CHANGE
    • Y02E—REDUCTION OF GREENHOUSE GAS [GHG] EMISSIONS, RELATED TO ENERGY GENERATION, TRANSMISSION OR DISTRIBUTION
    • Y02E50/00—Technologies for the production of fuel of non-fossil origin
    • Y02E50/30—Fuel from waste, e.g. synthetic alcohol or diesel

Landscapes

  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To increase the amt. of produced gases by separating gaseous CO2 from the gas produced from a digestion tank, floating and concentrating org. sludge under pressure by means of the gaseous CO2 and digesting the concd. sludge.
CONSTITUTION: After org. sludge is concd. in a pressure tank 1, it is charged into an anaerobic fermentation tank 2, where it is anaerobically fermented. The produced digestion gas consisting essentially of methane and CO2 is fed into a carbon dioxide absorption tower 3. Monoethanol amine is packed in the tower 3, and the gaseous CO2 in the digestion gas is absorbed by this. The methane is stored in a gas holder 5 through a measuring device 4. On the other hand, the monoethanol amine absorbed the gaseous CO2 is fed to a gaseous CO2 recovery tower 6, where it releases the gaseous CO2 which is stored in a gas holder 7. This gaseous CO2 is fed via a compressor 8 to a pressurized water producer 9, and is dissolved under pressure into the separating liquid of the tank 1 which is beforehand fed therein with a pump 10. The pressure-separated liquid dissolved therein with the CO2 is fed through a valve 11 to the tank 1, where sludge is floated and concd. under pressure by the foaming gaseous CO2.
COPYRIGHT: (C)1982,JPO&Japio
JP56027654A 1981-02-28 1981-02-28 Anaerobic digestive method for organic sludge Pending JPS57144099A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56027654A JPS57144099A (en) 1981-02-28 1981-02-28 Anaerobic digestive method for organic sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027654A JPS57144099A (en) 1981-02-28 1981-02-28 Anaerobic digestive method for organic sludge

Publications (1)

Publication Number Publication Date
JPS57144099A true JPS57144099A (en) 1982-09-06

Family

ID=12226905

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56027654A Pending JPS57144099A (en) 1981-02-28 1981-02-28 Anaerobic digestive method for organic sludge

Country Status (1)

Country Link
JP (1) JPS57144099A (en)

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109296A (en) * 1982-12-14 1984-06-23 Shinryo Air Conditioning Co Ltd Anaerobic digestion treatment
US5015384A (en) * 1988-05-25 1991-05-14 Burke Dennis A Anaerobic digestion process
JPH05228500A (en) * 1992-02-19 1993-09-07 Kawasaki Heavy Ind Ltd Dehydration of organic sludge
JPH0671296A (en) * 1992-06-18 1994-03-15 Ngk Insulators Ltd Solid-liquid separation method for digested sludge
US5310485A (en) * 1992-09-30 1994-05-10 Darling-Delaware Company, Inc. Process for dissolved gas flotation in anaerobic wastewater treatment
US5360546A (en) * 1992-04-01 1994-11-01 Ngk Insulators, Ltd. Method for treating organic sludge

Cited By (8)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59109296A (en) * 1982-12-14 1984-06-23 Shinryo Air Conditioning Co Ltd Anaerobic digestion treatment
JPH0254160B2 (en) * 1982-12-14 1990-11-20 Shinryo Air Cond
US5015384A (en) * 1988-05-25 1991-05-14 Burke Dennis A Anaerobic digestion process
JPH05228500A (en) * 1992-02-19 1993-09-07 Kawasaki Heavy Ind Ltd Dehydration of organic sludge
US5360546A (en) * 1992-04-01 1994-11-01 Ngk Insulators, Ltd. Method for treating organic sludge
JPH0671296A (en) * 1992-06-18 1994-03-15 Ngk Insulators Ltd Solid-liquid separation method for digested sludge
US5310485A (en) * 1992-09-30 1994-05-10 Darling-Delaware Company, Inc. Process for dissolved gas flotation in anaerobic wastewater treatment
US5437785A (en) * 1992-09-30 1995-08-01 Darling International Apparatus for dissolved gas flotation in anaerobic wastewater treatment

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