JPS5551498A - Sludge treatment - Google Patents

Sludge treatment

Info

Publication number
JPS5551498A
JPS5551498A JP12480378A JP12480378A JPS5551498A JP S5551498 A JPS5551498 A JP S5551498A JP 12480378 A JP12480378 A JP 12480378A JP 12480378 A JP12480378 A JP 12480378A JP S5551498 A JPS5551498 A JP S5551498A
Authority
JP
Japan
Prior art keywords
sludge
treated
liquid
reaction
reaction tower
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
JP12480378A
Other languages
Japanese (ja)
Other versions
JPS5651040B2 (en
Inventor
Sadaaki Nishikawa
Keisaku Seo
Ichiro Hagiwara
Shigeki Aoki
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.)
SEIBU KAGAKU KOGYO KK
Niigata Engineering Co Ltd
Asahi Kogyo KK
Original Assignee
SEIBU KAGAKU KOGYO KK
Niigata Engineering Co Ltd
Asahi Kogyo KK
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 SEIBU KAGAKU KOGYO KK, Niigata Engineering Co Ltd, Asahi Kogyo KK filed Critical SEIBU KAGAKU KOGYO KK
Priority to JP12480378A priority Critical patent/JPS5551498A/en
Publication of JPS5551498A publication Critical patent/JPS5551498A/en
Publication of JPS5651040B2 publication Critical patent/JPS5651040B2/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
    • Y02A—TECHNOLOGIES FOR ADAPTATION TO CLIMATE CHANGE
    • Y02A40/00—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production
    • Y02A40/10—Adaptation technologies in agriculture, forestry, livestock or agroalimentary production in agriculture
    • Y02A40/20—Fertilizers of biological origin, e.g. guano or fertilizers made from animal corpses

Landscapes

  • Treatment Of Sludge (AREA)
  • Fertilizers (AREA)

Abstract

PURPOSE: To provide a good quality fertilizer by facilitating compost preparation, sewage sludge or raw sewage sludge is treated by wet type oxidation and followed by dehydration.
CONSTITUTION: Sludge to be treated and compressed air from the compressor 3 enter the first heat exchanger 1 to exchange heat with high temperature oxidation liquid from the reaction tower 7 through the second heat exchanger 6. The sludge is heated to a given temperature of 135W250°C and enters the reaction tower 7. The sludge is treated in the reaction tower at a reaction pressure of 7W20kg/cm2 and wet-oxidized to a degree of 35W50% of loss on ignition. The treated sludge enters the gas-liquid separator 9 through the heat exchangers 6, 4 and the pressure control valve and separated from reaction gas. The liquid component enter the liquid-solid separation tank 11 where supernatant and slurry are separated. The slurry is dehydrated by the dehydrator to water content of 35W60%. The produced dehydrated sludge 13 is fermented by bacteria and made to compost. The formed fertilizer contains much of phosphorus, nitrogen and potassium.
COPYRIGHT: (C)1980,JPO&Japio
JP12480378A 1978-10-11 1978-10-11 Sludge treatment Granted JPS5551498A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12480378A JPS5551498A (en) 1978-10-11 1978-10-11 Sludge treatment

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12480378A JPS5551498A (en) 1978-10-11 1978-10-11 Sludge treatment

Publications (2)

Publication Number Publication Date
JPS5551498A true JPS5551498A (en) 1980-04-15
JPS5651040B2 JPS5651040B2 (en) 1981-12-02

Family

ID=14894505

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12480378A Granted JPS5551498A (en) 1978-10-11 1978-10-11 Sludge treatment

Country Status (1)

Country Link
JP (1) JPS5551498A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63297288A (en) * 1987-05-29 1988-12-05 興陽産業株式会社 Method of composting high concentration organic component
JP2008188533A (en) * 2007-02-05 2008-08-21 Toshiba Corp Water treatment apparatus

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP3651836B2 (en) * 1999-11-09 2005-05-25 日立造船株式会社 Organic waste treatment methods

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS63297288A (en) * 1987-05-29 1988-12-05 興陽産業株式会社 Method of composting high concentration organic component
JP2008188533A (en) * 2007-02-05 2008-08-21 Toshiba Corp Water treatment apparatus

Also Published As

Publication number Publication date
JPS5651040B2 (en) 1981-12-02

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