JPS5640497A - Pretreatment of sludge - Google Patents

Pretreatment of sludge

Info

Publication number
JPS5640497A
JPS5640497A JP11694679A JP11694679A JPS5640497A JP S5640497 A JPS5640497 A JP S5640497A JP 11694679 A JP11694679 A JP 11694679A JP 11694679 A JP11694679 A JP 11694679A JP S5640497 A JPS5640497 A JP S5640497A
Authority
JP
Japan
Prior art keywords
naerobic
sludge
methane gas
treatment
bacterias
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
JP11694679A
Other languages
Japanese (ja)
Other versions
JPS6260160B2 (en
Inventor
Kaoru Chigusa
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.)
Nishihara Environment Co Ltd
Original Assignee
Nishihara Environmental Sanitation Research Corp
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 Nishihara Environmental Sanitation Research Corp filed Critical Nishihara Environmental Sanitation Research Corp
Priority to JP11694679A priority Critical patent/JPS5640497A/en
Publication of JPS5640497A publication Critical patent/JPS5640497A/en
Publication of JPS6260160B2 publication Critical patent/JPS6260160B2/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

Abstract

PURPOSE: To perform the pretreatment that facilitates decomposition by naerobic treatment of following step, by destroying aerobic bacterias present in a sludge liquid by presurizing the sludge liquid using methane gas produced in a following step and then reducing the pressure.
CONSTITUTION: The sludge liquid containing aerobic bacterias such as excess activated sludge produced at sewage treatment facilities utilizing the activated sludge method is led to a pressure container 1 where the sludge is pressurized by methane gas that is generated at a naerobic digestion treatment tank 5 of following step. The methane gas intrudes into cells of bacterias, and when the pressure is reduced, the methane gas disolved within cell-walls is expanded abruptly to destroy the cell walls. Thereafter the sludge liquid is led to the naerobic treatment tank 5 to be subjected to naerobic treatment by naerobic bacterias. Thus the methane gas is recycled to destroy cell-walls and therefore the naerobic treatment is very effective.
COPYRIGHT: (C)1981,JPO&Japio
JP11694679A 1979-09-11 1979-09-11 Pretreatment of sludge Granted JPS5640497A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP11694679A JPS5640497A (en) 1979-09-11 1979-09-11 Pretreatment of sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP11694679A JPS5640497A (en) 1979-09-11 1979-09-11 Pretreatment of sludge

Publications (2)

Publication Number Publication Date
JPS5640497A true JPS5640497A (en) 1981-04-16
JPS6260160B2 JPS6260160B2 (en) 1987-12-15

Family

ID=14699634

Family Applications (1)

Application Number Title Priority Date Filing Date
JP11694679A Granted JPS5640497A (en) 1979-09-11 1979-09-11 Pretreatment of sludge

Country Status (1)

Country Link
JP (1) JPS5640497A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876200A (en) * 1981-11-02 1983-05-09 Toshiba Corp Anaerobic digestion of organic sludge
JP2009515686A (en) * 2005-11-15 2009-04-16 エル シェパード、サミュエル Rapid non-equilibrium decompression of microbial waste streams

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN109098664B (en) * 2018-08-07 2019-11-12 胜利油田盛辉石油技术开发有限责任公司 A kind of seabed combustible ice mine drilling bit

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5876200A (en) * 1981-11-02 1983-05-09 Toshiba Corp Anaerobic digestion of organic sludge
JP2009515686A (en) * 2005-11-15 2009-04-16 エル シェパード、サミュエル Rapid non-equilibrium decompression of microbial waste streams
JP4703728B2 (en) * 2005-11-15 2011-06-15 エル シェパード、サミュエル Rapid non-equilibrium decompression of microbial waste streams

Also Published As

Publication number Publication date
JPS6260160B2 (en) 1987-12-15

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