JPS5794390A - Sludge concentrating method - Google Patents

Sludge concentrating method

Info

Publication number
JPS5794390A
JPS5794390A JP17219080A JP17219080A JPS5794390A JP S5794390 A JPS5794390 A JP S5794390A JP 17219080 A JP17219080 A JP 17219080A JP 17219080 A JP17219080 A JP 17219080A JP S5794390 A JPS5794390 A JP S5794390A
Authority
JP
Japan
Prior art keywords
sludge
concentrating
vessel
flow rate
transport pipe
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
JP17219080A
Other languages
Japanese (ja)
Inventor
Kenji Baba
Shoji Watanabe
Toshio Yahagi
Hitoshi Ogasawara
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.)
Hitachi Ltd
Original Assignee
Hitachi 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 Hitachi Ltd filed Critical Hitachi Ltd
Priority to JP17219080A priority Critical patent/JPS5794390A/en
Publication of JPS5794390A publication Critical patent/JPS5794390A/en
Priority to US07/262,212 priority patent/US4904388A/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
    • 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

  • Separation Of Suspended Particles By Flocculating Agents (AREA)
  • Activated Sludge Processes (AREA)
  • Treatment Of Sludge (AREA)

Abstract

PURPOSE: To suppress and prevent the floating and concentrating of sludge and improve the sludge concentrating rate by aerating the sludge prior to settling and concentrating, detecting the concn. of the waste gas released from the sludge, and controlling the flow rate of aeration according to the waste gas concn.
CONSTITUTION: The sludge from a settling basin 29 or a sludge storage tank 28 is conducted to a sludge aerating vessel 3 by means of a sludge transport pipe 1 and a sludge pump 2. In the vessel 3, a gas is supplied by a blower 4, a gas transport pipe 5 and an air diffuser 6, whereby the sludge is aerated. The aerated sludge is supplied to a sludge concentrating vessel 9 by means of a sludge transport pipe 7 and a sludge pump 8, whereby it is concentrated. On the other hand, a sludge supply rate Qs is detected with a flowmeter 15, the detected value whereof is fed to an arithmetic device 16. A proportional constant K is given by a setter 17, and K.Qs is operated by the device 16 and the result thereof is fed to a controller 18. The controller 18 operates the blower 4 according to the operated value (anaerobic gas flow rate) K.Qs, thereby controlling the flow rate of aeration.
COPYRIGHT: (C)1982,JPO&Japio
JP17219080A 1980-12-05 1980-12-05 Sludge concentrating method Pending JPS5794390A (en)

Priority Applications (2)

Application Number Priority Date Filing Date Title
JP17219080A JPS5794390A (en) 1980-12-05 1980-12-05 Sludge concentrating method
US07/262,212 US4904388A (en) 1980-12-05 1988-10-21 Process for sludge thickening

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP17219080A JPS5794390A (en) 1980-12-05 1980-12-05 Sludge concentrating method

Publications (1)

Publication Number Publication Date
JPS5794390A true JPS5794390A (en) 1982-06-11

Family

ID=15937238

Family Applications (1)

Application Number Title Priority Date Filing Date
JP17219080A Pending JPS5794390A (en) 1980-12-05 1980-12-05 Sludge concentrating method

Country Status (1)

Country Link
JP (1) JPS5794390A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203700A (en) * 1983-02-28 1984-11-17 テムズ・ウオ−タ−・オ−ソリテイ Method of concentrating digested sludge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS59203700A (en) * 1983-02-28 1984-11-17 テムズ・ウオ−タ−・オ−ソリテイ Method of concentrating digested sludge

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