JPS6480500A - Method for anaerobically digesting sludge - Google Patents

Method for anaerobically digesting sludge

Info

Publication number
JPS6480500A
JPS6480500A JP62237371A JP23737187A JPS6480500A JP S6480500 A JPS6480500 A JP S6480500A JP 62237371 A JP62237371 A JP 62237371A JP 23737187 A JP23737187 A JP 23737187A JP S6480500 A JPS6480500 A JP S6480500A
Authority
JP
Japan
Prior art keywords
sludge
alkali
digestion tank
deposit
treated
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.)
Granted
Application number
JP62237371A
Other languages
Japanese (ja)
Other versions
JPH0369598B2 (en
Inventor
Noboru Nonoyama
Naoaki Uchiyama
Shinichiro Sato
Sadao Kamiyama
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.)
Fujita Corp
Yakult Honsha Co Ltd
Original Assignee
Fujita Corp
Yakult Honsha Co 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 Fujita Corp, Yakult Honsha Co Ltd filed Critical Fujita Corp
Priority to JP62237371A priority Critical patent/JPS6480500A/en
Publication of JPS6480500A publication Critical patent/JPS6480500A/en
Publication of JPH0369598B2 publication Critical patent/JPH0369598B2/ja
Granted 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 enhance the sludge treating efficiency by treating the digested sludge from an anaerobic digestion tank with an alkali, dehydrating the treated sludge, acidifying the separated liq. from dehydration, concentrating the deposit, and returning the concd. deposit to the digestion tank. CONSTITUTION:The digested sludge discharged from the anaerobic digestion tank is treated with an alkali, and then dehydrated. The separated liq. from dehydration is then acidified, and the formed deposit is concd. and returned to the digestion tank. In this case, the alkali such as sodium hydroxide is added to the digested sludge, and the alkali is added until the pH of sludge is appropriately controlled to about 11-13. The liq. separated from the alkali-treated sludge is added with hydrochloric acid, etc., and appropriately controlled to about 2-5pH. By this method, about 80% of the component eluted from the digested sludge by alkali treatment is insolubilized and deposited.
JP62237371A 1987-09-24 1987-09-24 Method for anaerobically digesting sludge Granted JPS6480500A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62237371A JPS6480500A (en) 1987-09-24 1987-09-24 Method for anaerobically digesting sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62237371A JPS6480500A (en) 1987-09-24 1987-09-24 Method for anaerobically digesting sludge

Publications (2)

Publication Number Publication Date
JPS6480500A true JPS6480500A (en) 1989-03-27
JPH0369598B2 JPH0369598B2 (en) 1991-11-01

Family

ID=17014393

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62237371A Granted JPS6480500A (en) 1987-09-24 1987-09-24 Method for anaerobically digesting sludge

Country Status (1)

Country Link
JP (1) JPS6480500A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007061710A (en) * 2005-08-30 2007-03-15 Kobelco Eco-Solutions Co Ltd Organic sludge treatment method and apparatus
CN113072275A (en) * 2021-04-01 2021-07-06 新疆碧水源环境资源股份有限公司 Novel water treatment process for sludge synergism

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2007061710A (en) * 2005-08-30 2007-03-15 Kobelco Eco-Solutions Co Ltd Organic sludge treatment method and apparatus
CN113072275A (en) * 2021-04-01 2021-07-06 新疆碧水源环境资源股份有限公司 Novel water treatment process for sludge synergism

Also Published As

Publication number Publication date
JPH0369598B2 (en) 1991-11-01

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