JPS5556892A - Treatment method of polluted water - Google Patents

Treatment method of polluted water

Info

Publication number
JPS5556892A
JPS5556892A JP12991778A JP12991778A JPS5556892A JP S5556892 A JPS5556892 A JP S5556892A JP 12991778 A JP12991778 A JP 12991778A JP 12991778 A JP12991778 A JP 12991778A JP S5556892 A JPS5556892 A JP S5556892A
Authority
JP
Japan
Prior art keywords
tank
polluted water
water
mixed
coagulum
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
JP12991778A
Other languages
Japanese (ja)
Inventor
Jiro Sekine
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.)
YAMAZAKI KOGYO KK
Original Assignee
YAMAZAKI KOGYO KK
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 YAMAZAKI KOGYO KK filed Critical YAMAZAKI KOGYO KK
Priority to JP12991778A priority Critical patent/JPS5556892A/en
Publication of JPS5556892A publication Critical patent/JPS5556892A/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

  • Activated Sludge Processes (AREA)

Abstract

PURPOSE: To clarify polluted water effectively by the procedure in which polluted water to be treated is subjected to aeration treatment, part of coagulated flocs with a cogulant is sent back to the aeration tank, and the separated supernatant liquor is filtered, sterilized, and discharged.
CONSTITUTION: Original polluted water supplied to the receiving tank 1 is homogenized with stirring 3 and then sent to the aeration tank 4 where it is mixed and aerated with fine bubbles of air coming out of the diffuser 6 and the treated polluted water is sent to the mixing tank 8. In the tank 8, a fixed concentration of a coagulant prepared by mixing a certain amount of water and a high-molecular coagulant in the attendant coagulant dissolution tank 9 is supplied and mixed with the treated polluted water to form coagulum. The coagulum-mixed polluted water formed in the mixing tank 8 is then overflowed into the precipitate separation tan 12 and allowed to stand, and the separated supernatant liquor is filtered by the filtering tank 13 consisting of the tanks 14 and 15 with different filter mediums. On the other hand, part of the coagulum formed is sent back to the aeration tank 4, and clarified water obtained in the filtering tank 13 is stored once in the clarified water storage 17 and then used as a concentration regulating water for the tank 4 and also is discharged after being passed through the sterilizer 19.
COPYRIGHT: (C)1980,JPO&Japio
JP12991778A 1978-10-21 1978-10-21 Treatment method of polluted water Pending JPS5556892A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP12991778A JPS5556892A (en) 1978-10-21 1978-10-21 Treatment method of polluted water

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP12991778A JPS5556892A (en) 1978-10-21 1978-10-21 Treatment method of polluted water

Publications (1)

Publication Number Publication Date
JPS5556892A true JPS5556892A (en) 1980-04-26

Family

ID=15021585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP12991778A Pending JPS5556892A (en) 1978-10-21 1978-10-21 Treatment method of polluted water

Country Status (1)

Country Link
JP (1) JPS5556892A (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750597A (en) * 1980-09-10 1982-03-25 Kubota Ltd Water treatment device
JPS60241994A (en) * 1984-02-22 1985-11-30 ボ−ト、ベ−ンケ Two-step biological treating method of sewage, particularly,urban sewage
JPS61197100A (en) * 1985-02-26 1986-09-01 Ichikawa Keori Kk Treatment of waste water

Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335255A (en) * 1976-09-14 1978-04-01 Mitsubishi Chem Ind Ltd Drainage treating method

Patent Citations (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5335255A (en) * 1976-09-14 1978-04-01 Mitsubishi Chem Ind Ltd Drainage treating method

Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5750597A (en) * 1980-09-10 1982-03-25 Kubota Ltd Water treatment device
JPS60241994A (en) * 1984-02-22 1985-11-30 ボ−ト、ベ−ンケ Two-step biological treating method of sewage, particularly,urban sewage
JPH0118795B2 (en) * 1984-02-22 1989-04-07 Boehnke Botho
JPS61197100A (en) * 1985-02-26 1986-09-01 Ichikawa Keori Kk Treatment of waste water

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