JPS5617690A - Dehydrating method for sludge - Google Patents

Dehydrating method for sludge

Info

Publication number
JPS5617690A
JPS5617690A JP9412879A JP9412879A JPS5617690A JP S5617690 A JPS5617690 A JP S5617690A JP 9412879 A JP9412879 A JP 9412879A JP 9412879 A JP9412879 A JP 9412879A JP S5617690 A JPS5617690 A JP S5617690A
Authority
JP
Japan
Prior art keywords
sludge
dregs
coagulated
coagulation
mixing
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
JP9412879A
Other languages
Japanese (ja)
Other versions
JPS637840B2 (en
Inventor
Takayuki Suzuki
Masanori Eto
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.)
Ebara Corp
Original Assignee
Ebara Infilco 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 Ebara Infilco Co Ltd filed Critical Ebara Infilco Co Ltd
Priority to JP9412879A priority Critical patent/JPS5617690A/en
Publication of JPS5617690A publication Critical patent/JPS5617690A/en
Publication of JPS637840B2 publication Critical patent/JPS637840B2/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
    • Y02W—CLIMATE CHANGE MITIGATION TECHNOLOGIES RELATED TO WASTEWATER TREATMENT OR WASTE MANAGEMENT
    • Y02W10/00—Technologies for wastewater treatment
    • Y02W10/10—Biological treatment of water, waste water, or sewage

Landscapes

  • Activated Sludge Processes (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To reduce the percentage of moisture content of dehydrated cake and treating cost, by mixing impurities (sieved dregs) from dregs removing process with mixed sludge of surplus activated sludge and coagulated sludge and dehydrating the mixture at the activated sludge method having the dregs removing process.
CONSTITUTION: For example, dregs are removed from the raw sewage 1 at the pretreatment process 2 and the sewage 3 removed the dregs is flowed in the coagulation process 6 after flowing said sewage 3 in the activated sludge treatment process 4 and purifying it. After mixing the surplus sludge 8 of the process 4 performed the coagulation treatment and the coagulated sludge 9 of the process 6 with the sieved dregs 10 transferred from the process 2 in the sludge storing vessel 12, this mixture is coagulated by adding the high molecular coagulant 14 in the coagulation vessel 13 and is dehydrated in the dehydrater 15 and then, the dehydrated cake 16 having a low percentage of moisture content, is obtained effectively. Further, mechanical stirring is allowed to use for mixing in said vessel 12 but, it is good to use the air, O2 or ozonized air including the removal of remaining BOD.
COPYRIGHT: (C)1981,JPO&Japio
JP9412879A 1979-07-24 1979-07-24 Dehydrating method for sludge Granted JPS5617690A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9412879A JPS5617690A (en) 1979-07-24 1979-07-24 Dehydrating method for sludge

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9412879A JPS5617690A (en) 1979-07-24 1979-07-24 Dehydrating method for sludge

Related Child Applications (1)

Application Number Title Priority Date Filing Date
JP63299496A Division JPH01274900A (en) 1988-11-29 1988-11-29 Method for dehydrating sludge

Publications (2)

Publication Number Publication Date
JPS5617690A true JPS5617690A (en) 1981-02-19
JPS637840B2 JPS637840B2 (en) 1988-02-18

Family

ID=14101768

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9412879A Granted JPS5617690A (en) 1979-07-24 1979-07-24 Dehydrating method for sludge

Country Status (1)

Country Link
JP (1) JPS5617690A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605300A (en) * 1983-06-22 1985-01-11 Ebara Infilco Co Ltd Sludge dehydrating method
JPS60190300A (en) * 1984-03-09 1985-09-27 Ebara Infilco Co Ltd Treatment of screen dregs
JPS60225699A (en) * 1984-04-23 1985-11-09 Ebara Infilco Co Ltd Dehydration treatment of organic sludge

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS605300A (en) * 1983-06-22 1985-01-11 Ebara Infilco Co Ltd Sludge dehydrating method
JPS60190300A (en) * 1984-03-09 1985-09-27 Ebara Infilco Co Ltd Treatment of screen dregs
JPS60225699A (en) * 1984-04-23 1985-11-09 Ebara Infilco Co Ltd Dehydration treatment of organic sludge

Also Published As

Publication number Publication date
JPS637840B2 (en) 1988-02-18

Similar Documents

Publication Publication Date Title
JPS6210720B2 (en)
JPS5617690A (en) Dehydrating method for sludge
JPS571491A (en) Disposal of sewage
JPS5656288A (en) Coagulating sedimentation treatment process
JPS54102056A (en) Process for high-speed treatment of waste water
JPS54108458A (en) Method of decoloring and purifying night-soil
JPS565196A (en) Treatment of sludge from purifying tank
JPS5624089A (en) Coagulation and sedimentation treatment of waste water of pulp mill
JPS5535957A (en) Treating of dilute turbid water or the like
JPS57117400A (en) Dehydration of excessive sludge
JPS56126498A (en) Treatment of sludge in night soil purifying tank
JPS54123247A (en) Treatment of raw urine and clarification tank sludge
JPS5791800A (en) Treatment for dehydrating coagulated and precipitated sludge
JPS5613094A (en) High degree treating method of organic waste water
JPS5919759B2 (en) Advanced treatment method for sewage water
JPS5534148A (en) Dehydration treating method of waste water containing organic matter
JPS57197100A (en) Treatment of sewage sludge
JPS5719098A (en) Sludge-dewatering method
JPS56158188A (en) Treatment of waste water of slaughter house
JPS57132600A (en) Treatment of sludge
JPS565185A (en) Treatment of waste water of low biochemical oxygen demand
JPS5759699A (en) Dewatering method for sludge
JPS5799390A (en) Treatment of organic waste liquid
JPS6094200A (en) Treatment before dehydration of organic sludge
JPS5753298A (en) Treatment of organic liquid waste