JPS55102496A - Treatment of organics-containing waste water - Google Patents

Treatment of organics-containing waste water

Info

Publication number
JPS55102496A
JPS55102496A JP992279A JP992279A JPS55102496A JP S55102496 A JPS55102496 A JP S55102496A JP 992279 A JP992279 A JP 992279A JP 992279 A JP992279 A JP 992279A JP S55102496 A JPS55102496 A JP S55102496A
Authority
JP
Japan
Prior art keywords
waste water
tank
added
nitrogen
sludge
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
JP992279A
Other languages
Japanese (ja)
Other versions
JPS624199B2 (en
Inventor
Hideki Kamiyoshi
Isamu Fujiwara
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.)
Mitsubishi Heavy Industries Ltd
Original Assignee
Mitsubishi Heavy Industries 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 Mitsubishi Heavy Industries Ltd filed Critical Mitsubishi Heavy Industries Ltd
Priority to JP992279A priority Critical patent/JPS55102496A/en
Publication of JPS55102496A publication Critical patent/JPS55102496A/en
Publication of JPS624199B2 publication Critical patent/JPS624199B2/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)

Abstract

PURPOSE: To perform the treatment of waste water effectively by the producure in which an alkali is added to waste water containing organic high molecular substances with NH3 nitrogen to convert the NH3 nitrogen into nitric acid nitrogen and then a coagulant and an acid or a basic additive is added to the waste water with stirring in duplicate runs to form flocs.
CONSTITUTION: Waste water 1 to be treated in supplied into the aeration tank 3 in the activated sludge process I' and then activated sludge with supplied O2 5 and the alkali 4 are added to the waste water to convert NH3 nitrogen present into nitric acid nitrogen. Then, the nitrified water is supplied to the primary sedimentation tank 7 and subjected to separation by sedimentation. Part of sedimented sludge 8 at the bottom of the tank 7 is sent back to the tank 3 as the return sludge 9, and then the remaining sludge is discharged as the excess sludge 11. Then, in the coagulating sedimentation process II', the foregoing nitrified waste water 13 is sent to the primary stirring tank 14 and then an acid or a base 15a and a coagulant 18a are added to the waste water so as to regulate pH4W12 and stirred rapidly. And, the primary mixed water 20 whose organic high molecular substances P are sufficiently neutralized electrically in the tank 14 is sent to the secondary stirring tank 17 and then a base or a coagulant is added to the water and stirred slowly. Then, huge flocs formed are separated by sedimentation in the secondary sedimentation tank 24 and then discharged to the outside.
COPYRIGHT: (C)1980,JPO&Japio
JP992279A 1979-01-31 1979-01-31 Treatment of organics-containing waste water Granted JPS55102496A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP992279A JPS55102496A (en) 1979-01-31 1979-01-31 Treatment of organics-containing waste water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP992279A JPS55102496A (en) 1979-01-31 1979-01-31 Treatment of organics-containing waste water

Publications (2)

Publication Number Publication Date
JPS55102496A true JPS55102496A (en) 1980-08-05
JPS624199B2 JPS624199B2 (en) 1987-01-29

Family

ID=11733573

Family Applications (1)

Application Number Title Priority Date Filing Date
JP992279A Granted JPS55102496A (en) 1979-01-31 1979-01-31 Treatment of organics-containing waste water

Country Status (1)

Country Link
JP (1) JPS55102496A (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CN104192995A (en) * 2014-08-08 2014-12-10 中国市政工程西北设计研究院有限公司 Integrated aerobic granular sludge composite purifier and sewage treatment method
JP2015009168A (en) * 2013-06-26 2015-01-19 住友重機械エンバイロメント株式会社 Flocculation sedimentation active sludge treatment system, and method for operating the same

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JP2015009168A (en) * 2013-06-26 2015-01-19 住友重機械エンバイロメント株式会社 Flocculation sedimentation active sludge treatment system, and method for operating the same
CN104192995A (en) * 2014-08-08 2014-12-10 中国市政工程西北设计研究院有限公司 Integrated aerobic granular sludge composite purifier and sewage treatment method
CN104192995B (en) * 2014-08-08 2016-01-27 中国市政工程西北设计研究院有限公司 Integrative aerobic particle sludge composite purification device and the method for disposing of sewage

Also Published As

Publication number Publication date
JPS624199B2 (en) 1987-01-29

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