JPS5799400A - Heating method for sludge-concentrating vessel and sludge-digesting vessel - Google Patents

Heating method for sludge-concentrating vessel and sludge-digesting vessel

Info

Publication number
JPS5799400A
JPS5799400A JP17590080A JP17590080A JPS5799400A JP S5799400 A JPS5799400 A JP S5799400A JP 17590080 A JP17590080 A JP 17590080A JP 17590080 A JP17590080 A JP 17590080A JP S5799400 A JPS5799400 A JP S5799400A
Authority
JP
Japan
Prior art keywords
sludge
heat
heat exchanger
vessel
evaporator
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
JP17590080A
Other languages
Japanese (ja)
Inventor
Takashi Nishikawa
Hitoshi Fuse
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.)
JFE Engineering Corp
Original Assignee
NKK Corp
Nippon Kokan 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 NKK Corp, Nippon Kokan Ltd filed Critical NKK Corp
Priority to JP17590080A priority Critical patent/JPS5799400A/en
Publication of JPS5799400A publication Critical patent/JPS5799400A/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 perform efficient heating without necessity of any supplemental fuel, by using a heat source obtained by utilization of a heat pump process using purified sewage as a low-temperature heat source.
CONSTITUTION: A heat pump mainly constructed by a compressor 13', an evaporator 20, a condenser 21 and an expansion valve 22 driven by a gas engine 14 using digestion gas from a digesting vessel 3 as fuel, is used. A coolant 23, which is heat-exchanged with the low-temperature heat of purified sewage 24 in the evaporator 20, is compressed by the compressor 13', fed to the condenser 21, expanded by the expansion valve 22 and then fed to the evaporator 20. On the other hand, the interior of the condenser 21 is heated by feeding relatively low-temperature hot water 7' from the sludge heat exchanger 8' of a sludge thickener 25, further heated in a heat exchanger 17 by cooling water from the engine 14, and still further reheated in a heat exchanger 19 by exhaust gas 18 from the engine 14. The resultant hot water 7 is fed into the heat exchanger 8' of the thickenner 25 to heat and concentrate the sludge.
COPYRIGHT: (C)1982,JPO&Japio
JP17590080A 1980-12-15 1980-12-15 Heating method for sludge-concentrating vessel and sludge-digesting vessel Pending JPS5799400A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP17590080A JPS5799400A (en) 1980-12-15 1980-12-15 Heating method for sludge-concentrating vessel and sludge-digesting vessel

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17590080A JPS5799400A (en) 1980-12-15 1980-12-15 Heating method for sludge-concentrating vessel and sludge-digesting vessel

Publications (1)

Publication Number Publication Date
JPS5799400A true JPS5799400A (en) 1982-06-21

Family

ID=16004188

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17590080A Pending JPS5799400A (en) 1980-12-15 1980-12-15 Heating method for sludge-concentrating vessel and sludge-digesting vessel

Country Status (1)

Country Link
JP (1) JPS5799400A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140199U (en) * 1984-08-13 1986-03-13 株式会社 ほくさん Methane fermentation equipment
GB2246122A (en) * 1990-06-06 1992-01-22 Alan Hilton Ridett Digestion of sewage sludge
KR100492928B1 (en) * 2004-04-09 2005-06-02 장동현 Apparatus for processing waste water using heat-pump system

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6140199U (en) * 1984-08-13 1986-03-13 株式会社 ほくさん Methane fermentation equipment
GB2246122A (en) * 1990-06-06 1992-01-22 Alan Hilton Ridett Digestion of sewage sludge
KR100492928B1 (en) * 2004-04-09 2005-06-02 장동현 Apparatus for processing waste water using heat-pump system

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