JPS57144098A - Anaerobic digestive method for sewer sludge - Google Patents

Anaerobic digestive method for sewer sludge

Info

Publication number
JPS57144098A
JPS57144098A JP56027653A JP2765381A JPS57144098A JP S57144098 A JPS57144098 A JP S57144098A JP 56027653 A JP56027653 A JP 56027653A JP 2765381 A JP2765381 A JP 2765381A JP S57144098 A JPS57144098 A JP S57144098A
Authority
JP
Japan
Prior art keywords
sludge
tank
settling basin
initial settling
anaerobically
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
JP56027653A
Other languages
Japanese (ja)
Inventor
Masahiro Kon
Naomichi Mori
Tsutomu Onuma
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 JP56027653A priority Critical patent/JPS57144098A/en
Publication of JPS57144098A publication Critical patent/JPS57144098A/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

Abstract

PURPOSE: To increase the amt. of production of gases by collecting the initial settling basin sludge and excess sludge produced from a sewer treatment plant separately, and anaerobically treating the excess sludge at 5W7pH then mixing with the preheated initial settling basin sludge and anaerobically treating the same at 7W8pH thereby gasifying the sludge.
CONSTITUTION: The initial settling basin sludge and excess sludge produced in a sewer treatment station are collected separately, and the excess sludge is charged into a fermentation tank 1, where it is held at 30W60°C at 5W7pH and is anaerobically treated with facultative anaerobes, whereby high polymer materials are turned to low polymer materials and are converted to org. acids. On the other hand, the initial settling basin sludge is introduced into a mixing tank 2, where it is mixed with the digestion sludge separated in a solid-liquid sepn. tank 6 at 0.5W5 org. material weight ratios based on 1 of the sludge. After the mixture is preheated, it is introduced into a digesting tank 3. At the same time, the slurry formed in the above-described tank 1 is also introduced into the tank 3, where it is anaerobically fermented at 7W8pH. The produced methane is measured with a gas measuring device 4, and is stored in a gas holder 5.
COPYRIGHT: (C)1982,JPO&Japio
JP56027653A 1981-02-28 1981-02-28 Anaerobic digestive method for sewer sludge Pending JPS57144098A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56027653A JPS57144098A (en) 1981-02-28 1981-02-28 Anaerobic digestive method for sewer sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56027653A JPS57144098A (en) 1981-02-28 1981-02-28 Anaerobic digestive method for sewer sludge

Publications (1)

Publication Number Publication Date
JPS57144098A true JPS57144098A (en) 1982-09-06

Family

ID=12226874

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56027653A Pending JPS57144098A (en) 1981-02-28 1981-02-28 Anaerobic digestive method for sewer sludge

Country Status (1)

Country Link
JP (1) JPS57144098A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN103011542A (en) * 2012-12-13 2013-04-03 清华大学 Anaerobic digestion device and process for pre-treating sludge with high solid content by heating method
JP2016117066A (en) * 2010-12-10 2016-06-30 水ｉｎｇ株式会社 Anaerobic treatment method
JP2017000982A (en) * 2015-06-12 2017-01-05 水ｉｎｇ株式会社 Wastewater treatment system and method

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2016117066A (en) * 2010-12-10 2016-06-30 水ｉｎｇ株式会社 Anaerobic treatment method
CN103011542A (en) * 2012-12-13 2013-04-03 清华大学 Anaerobic digestion device and process for pre-treating sludge with high solid content by heating method
JP2017000982A (en) * 2015-06-12 2017-01-05 水ｉｎｇ株式会社 Wastewater treatment system and method

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