JPS6415197A - Method for controlling movable weir for effluent from biological oxidation tank in water purifying plant - Google Patents

Method for controlling movable weir for effluent from biological oxidation tank in water purifying plant

Info

Publication number
JPS6415197A
JPS6415197A JP62168729A JP16872987A JPS6415197A JP S6415197 A JPS6415197 A JP S6415197A JP 62168729 A JP62168729 A JP 62168729A JP 16872987 A JP16872987 A JP 16872987A JP S6415197 A JPS6415197 A JP S6415197A
Authority
JP
Japan
Prior art keywords
water
effluent
movable weir
depth
contact time
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
JP62168729A
Other languages
Japanese (ja)
Inventor
Hideyuki Ishikawa
Tatsue Kanazawa
Keiji Okuma
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 Engineering Co Ltd
Hitachi Ltd
Original Assignee
Hitachi Engineering Co Ltd
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 Engineering Co Ltd, Hitachi Ltd filed Critical Hitachi Engineering Co Ltd
Priority to JP62168729A priority Critical patent/JPS6415197A/en
Publication of JPS6415197A publication Critical patent/JPS6415197A/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
    • 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

  • Biological Treatment Of Waste Water (AREA)

Abstract

PURPOSE:To maintain the quality of biologically oxidized water by controlling the position of a movable weir for the effluent, and controlling the effective depth of water. CONSTITUTION:The biological membrane contact time is obtained by a biological membrane contact time arithmetic circuit 7-1 from the temp. measured by a thermometer 3. The effective depth of water required for the contact time obtained by the arithmetic circuit 7-1 is then calculated by an effective depth arithmetic circuit 7-2. The height of the movable weir for the effluent is adjusted by a movable weir control circuit 7-3 so that the depth is controlled to the calculated value. By this method, stabilized-quality treated water can be obtained irrespective of the variations in the quality of raw water, the depth of water in a biological oxidation vessel 1 can be controlled to a necessary minimum, and hence the operation power cost of a blower can be reduced.
JP62168729A 1987-07-08 1987-07-08 Method for controlling movable weir for effluent from biological oxidation tank in water purifying plant Pending JPS6415197A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP62168729A JPS6415197A (en) 1987-07-08 1987-07-08 Method for controlling movable weir for effluent from biological oxidation tank in water purifying plant

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP62168729A JPS6415197A (en) 1987-07-08 1987-07-08 Method for controlling movable weir for effluent from biological oxidation tank in water purifying plant

Publications (1)

Publication Number Publication Date
JPS6415197A true JPS6415197A (en) 1989-01-19

Family

ID=15873336

Family Applications (1)

Application Number Title Priority Date Filing Date
JP62168729A Pending JPS6415197A (en) 1987-07-08 1987-07-08 Method for controlling movable weir for effluent from biological oxidation tank in water purifying plant

Country Status (1)

Country Link
JP (1) JPS6415197A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7726138B2 (en) * 2004-01-31 2010-06-01 Richard J. Bailey, Jr. Water production system for making potable water
CN103030209A (en) * 2012-12-12 2013-04-10 北京城市排水集团有限责任公司 Effluent-adjustable weir device with nitrogen and phosphorus removal sewage treatment aeration tank and control method thereof

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US7726138B2 (en) * 2004-01-31 2010-06-01 Richard J. Bailey, Jr. Water production system for making potable water
CN103030209A (en) * 2012-12-12 2013-04-10 北京城市排水集团有限责任公司 Effluent-adjustable weir device with nitrogen and phosphorus removal sewage treatment aeration tank and control method thereof

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