JPS5457355A - Method of treating muddy sewage - Google Patents

Method of treating muddy sewage

Info

Publication number
JPS5457355A
JPS5457355A JP12356677A JP12356677A JPS5457355A JP S5457355 A JPS5457355 A JP S5457355A JP 12356677 A JP12356677 A JP 12356677A JP 12356677 A JP12356677 A JP 12356677A JP S5457355 A JPS5457355 A JP S5457355A
Authority
JP
Japan
Prior art keywords
furnace
dehydrated
sewage
sludge
muddy sewage
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
JP12356677A
Other languages
Japanese (ja)
Inventor
Kiyoshi Uyama
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 JP12356677A priority Critical patent/JPS5457355A/en
Publication of JPS5457355A publication Critical patent/JPS5457355A/en
Pending legal-status Critical Current

Links

Landscapes

  • Treatment Of Sludge (AREA)
  • Gasification And Melting Of Waste (AREA)

Abstract

PURPOSE: To provide a muddy sewage treating system, in which muddy sewage is dehydrated and combusted, and the waste heat is utilized for generating electric power by means of boiler and steam turbine, whereby it is enabled to generate superfluous electric power, with no need of auxiliary fuel oil and without producing badly odored exhaust gas.
CONSTITUTION: Muddy sewage principally composed of organic substances is dehydrated effectively with addition of chemicals such as coagulant to the settled sludge and superfluous activated sludge. Then, the muddy sewage thus added with chemicals is dehydrated by dehydrator 1, and cakes of dehydrated sewage are crushed into pieces by crusher 3 and introduced into fluidized bed combustion furnace 4. Pre-heated air is supplied from window box 6 into the furnace 4 through porous furnace bed 7. On the furnace bed 7, high-temperature silica sand heated by combustion of the sludge forms a fluidized bed 8, so that sludge is combusted with no need of auxiliary fuel. Further, air is pre-heated in air pre-heater 10 by high-temperature combustion gas supplied from the top of the furnace, and stream is generated by waste heat boiler 12 and used for driving the turbine of generator
COPYRIGHT: (C)1979,JPO&Japio
JP12356677A 1977-10-17 1977-10-17 Method of treating muddy sewage Pending JPS5457355A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12356677A JPS5457355A (en) 1977-10-17 1977-10-17 Method of treating muddy sewage

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12356677A JPS5457355A (en) 1977-10-17 1977-10-17 Method of treating muddy sewage

Publications (1)

Publication Number Publication Date
JPS5457355A true JPS5457355A (en) 1979-05-09

Family

ID=14863747

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12356677A Pending JPS5457355A (en) 1977-10-17 1977-10-17 Method of treating muddy sewage

Country Status (1)

Country Link
JP (1) JPS5457355A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01200111A (en) * 1987-10-02 1989-08-11 Saburo Katayose Refuse incinerator
JP2006263555A (en) * 2005-03-23 2006-10-05 Sumitomo Heavy Ind Ltd Energy recovery system and energy recovery method
JP2019023453A (en) * 2017-07-25 2019-02-14 Ｊｆｅエンジニアリング株式会社 Power generation system using waste heat in sewage sludge incineration facility and operation method of power generation system

Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3465696A (en) * 1968-02-26 1969-09-09 Howard R Amundsen Open pit vortex incineration arrangement
US3467587A (en) * 1966-01-05 1969-09-16 Foster Wheeler Corp Waste incinerator steam generator-flash evaporator desalination unit
US3719171A (en) * 1971-03-29 1973-03-06 Astrotronic Res Ltd Burner for combustible material
JPS4872978A (en) * 1971-12-10 1973-10-02
US3841239A (en) * 1972-06-17 1974-10-15 Shin Meiwa Ind Co Ltd Method and apparatus for thermally decomposing refuse
JPS50139572A (en) * 1974-04-24 1975-11-07

Patent Citations (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3467587A (en) * 1966-01-05 1969-09-16 Foster Wheeler Corp Waste incinerator steam generator-flash evaporator desalination unit
US3465696A (en) * 1968-02-26 1969-09-09 Howard R Amundsen Open pit vortex incineration arrangement
US3719171A (en) * 1971-03-29 1973-03-06 Astrotronic Res Ltd Burner for combustible material
JPS4872978A (en) * 1971-12-10 1973-10-02
US3841239A (en) * 1972-06-17 1974-10-15 Shin Meiwa Ind Co Ltd Method and apparatus for thermally decomposing refuse
JPS50139572A (en) * 1974-04-24 1975-11-07

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH01200111A (en) * 1987-10-02 1989-08-11 Saburo Katayose Refuse incinerator
JP2006263555A (en) * 2005-03-23 2006-10-05 Sumitomo Heavy Ind Ltd Energy recovery system and energy recovery method
JP2019023453A (en) * 2017-07-25 2019-02-14 Ｊｆｅエンジニアリング株式会社 Power generation system using waste heat in sewage sludge incineration facility and operation method of power generation system

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