JPS57137000A - Treatment of sludge - Google Patents

Treatment of sludge

Info

Publication number
JPS57137000A
JPS57137000A JP56023822A JP2382281A JPS57137000A JP S57137000 A JPS57137000 A JP S57137000A JP 56023822 A JP56023822 A JP 56023822A JP 2382281 A JP2382281 A JP 2382281A JP S57137000 A JPS57137000 A JP S57137000A
Authority
JP
Japan
Prior art keywords
sludge
tank
withdrawn
same
settling basin
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
JP56023822A
Other languages
Japanese (ja)
Inventor
Akihiro Yasuda
Goro Fujiwara
Masaru Kanazawa
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.)
Takuma Research and Development Co Ltd
Original Assignee
Takuma Research and Development 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 Takuma Research and Development Co Ltd filed Critical Takuma Research and Development Co Ltd
Priority to JP56023822A priority Critical patent/JPS57137000A/en
Publication of JPS57137000A publication Critical patent/JPS57137000A/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 lower construction costs and to improve the recovery rate of energy by treating the excess sludge produced from a settling basin for 20W 90min at 125W200°C then cooling the same and subjecting the same to methane fermentation in a digesting tank thence adding a filtration accelerator to the sludge and dehydrating the same.
CONSTITUTION: Sewage 1 is introduced into a settling basin 2, where crude sludge 5 is settled and separated, after which it is decomposed by microorganisms under areation in an aeration tank 3. After the sludge is separated in a final settling basin 4, the supernatant is pumped out. The sludge in a sludge storage tank 9 is withdrawn with a sludge pump 10, and is injected into a treating tank 11, where it is heat treated for 30min at 175°C. Thence, the sludge in a storage tank 12 is withdrawn with a sludge feed pump 15, is withdrawn from the bottom of a digesting tank 14 with an air feed pump 13, and is mixed with the seed sludge contg. anerobic bacteria withdrawn from the extension part of the tank 14 with the pump 15. The mixed sludge is introduced into the tank 14.
COPYRIGHT: (C)1982,JPO&Japio
JP56023822A 1981-02-19 1981-02-19 Treatment of sludge Pending JPS57137000A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP56023822A JPS57137000A (en) 1981-02-19 1981-02-19 Treatment of sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP56023822A JPS57137000A (en) 1981-02-19 1981-02-19 Treatment of sludge

Publications (1)

Publication Number Publication Date
JPS57137000A true JPS57137000A (en) 1982-08-24

Family

ID=12121042

Family Applications (1)

Application Number Title Priority Date Filing Date
JP56023822A Pending JPS57137000A (en) 1981-02-19 1981-02-19 Treatment of sludge

Country Status (1)

Country Link
JP (1) JPS57137000A (en)

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