JPS562892A - Water treating apparatus - Google Patents

Water treating apparatus

Info

Publication number
JPS562892A
JPS562892A JP7935479A JP7935479A JPS562892A JP S562892 A JPS562892 A JP S562892A JP 7935479 A JP7935479 A JP 7935479A JP 7935479 A JP7935479 A JP 7935479A JP S562892 A JPS562892 A JP S562892A
Authority
JP
Japan
Prior art keywords
nitration
tank
denitrification
electric potential
dissolved oxygen
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
JP7935479A
Other languages
Japanese (ja)
Inventor
Tadaaki Kawasugi
Taketoshi Madokoro
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.)
Kubota Corp
Original Assignee
Kubota Corp
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 Kubota Corp filed Critical Kubota Corp
Priority to JP7935479A priority Critical patent/JPS562892A/en
Publication of JPS562892A publication Critical patent/JPS562892A/en
Pending legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/28—Anaerobic digestion processes
    • C02F3/2806—Anaerobic processes using solid supports for microorganisms
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/02—Aerobic processes
    • C02F3/12—Activated sludge processes
    • C02F3/22—Activated sludge processes using circulation pipes
    • C02F3/226—"Deep shaft" processes
    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/30—Aerobic and anaerobic processes
    • C02F3/302—Nitrification and denitrification treatment
    • 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

  • Life Sciences & Earth Sciences (AREA)
  • Microbiology (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Hydrology & Water Resources (AREA)
  • Engineering & Computer Science (AREA)
  • Environmental & Geological Engineering (AREA)
  • Water Supply & Treatment (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Aeration Devices For Treatment Of Activated Polluted Sludge (AREA)
  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE:To carry out a nitration and denitrification treatment in good efficiency by a method wherein a nitration tank and a denitrification tank are connected and an automatic control apparatus for detecting a dissolved oxygen amount in the treating water contg. an activated sludge within the denitrification tank and a redox electric potential to supply a gas contg. oxygen is provided. CONSTITUTION:A denitrification tank 2 is connected to a nitration tank 1 and a stirring device 8 is provided to each tanks 2a, 2b, 2c of the denitrification tank 2 as well as a detecting device 10 for detecting an amt. of dissolved oxygen and a redox electric potential 10 is provided. Based on this detected value, a cock 11 is operated by a control device 12 to maintain the amt. of dissolved oxygen and a redox electric potential in each tanks 2a, 2b, 2c to a set range. Thereby, oxygen deficiency to activated sludge is avoided and nitration and denitrification treatments are efficiently carried out while generation of rotting is prevented. Moreover, the amt. of the dissolved oxygen is controlled to about 10% or less and a redox electric potential to 0mm.V or less.
JP7935479A 1979-06-22 1979-06-22 Water treating apparatus Pending JPS562892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP7935479A JPS562892A (en) 1979-06-22 1979-06-22 Water treating apparatus

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP7935479A JPS562892A (en) 1979-06-22 1979-06-22 Water treating apparatus

Publications (1)

Publication Number Publication Date
JPS562892A true JPS562892A (en) 1981-01-13

Family

ID=13687558

Family Applications (1)

Application Number Title Priority Date Filing Date
JP7935479A Pending JPS562892A (en) 1979-06-22 1979-06-22 Water treating apparatus

Country Status (1)

Country Link
JP (1) JPS562892A (en)

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156832A (en) * 1982-03-15 1983-09-17 Daifuku Co Ltd Tester for engine or the like
JPS59179355U (en) * 1983-05-17 1984-11-30 株式会社ダイフク Test engine clamping device
JPS59217131A (en) * 1983-05-26 1984-12-07 Daifuku Co Ltd Testing system for engine
FR2753191A1 (en) * 1996-09-10 1998-03-13 Degremont PROCESS FOR PURIFYING CARBON POLLUTION AND DENITRIFICATION IN AN OXYGEN MEDIUM OF WASTEWATER

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512255A (en) * 1974-06-26 1976-01-09 Dravo Corp Jukishitsuhaisuino shoripurosesu
JPS5422955A (en) * 1977-07-21 1979-02-21 Nippon Paint Co Ltd Controller for disposal of organic waste water

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS512255A (en) * 1974-06-26 1976-01-09 Dravo Corp Jukishitsuhaisuino shoripurosesu
JPS5422955A (en) * 1977-07-21 1979-02-21 Nippon Paint Co Ltd Controller for disposal of organic waste water

Cited By (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58156832A (en) * 1982-03-15 1983-09-17 Daifuku Co Ltd Tester for engine or the like
JPH0216863B2 (en) * 1982-03-15 1990-04-18 Daifuku Kk
JPS59179355U (en) * 1983-05-17 1984-11-30 株式会社ダイフク Test engine clamping device
JPS59217131A (en) * 1983-05-26 1984-12-07 Daifuku Co Ltd Testing system for engine
FR2753191A1 (en) * 1996-09-10 1998-03-13 Degremont PROCESS FOR PURIFYING CARBON POLLUTION AND DENITRIFICATION IN AN OXYGEN MEDIUM OF WASTEWATER
WO1998011027A1 (en) * 1996-09-10 1998-03-19 Degremont Method for purifying carbon-containing pollution and denitrifying waste water in oxygenic medium

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