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JPS56118795A - Denitrification of waste water with biological membrane - Google Patents

Denitrification of waste water with biological membrane

Info

Publication number
JPS56118795A
JPS56118795A JP2304380A JP2304380A JPS56118795A JP S56118795 A JPS56118795 A JP S56118795A JP 2304380 A JP2304380 A JP 2304380A JP 2304380 A JP2304380 A JP 2304380A JP S56118795 A JPS56118795 A JP S56118795A
Authority
JP
Japan
Prior art keywords
waste water
nonwoven fabric
fabric sheet
sheet
nitrogen
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
JP2304380A
Other languages
Japanese (ja)
Inventor
Yasuo Futamura
Masaru Kaneizumi
Seiji Yoshida
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.)
Toyobo Co Ltd
Original Assignee
Toyobo Co 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 Toyobo Co Ltd filed Critical Toyobo Co Ltd
Priority to JP2304380A priority Critical patent/JPS56118795A/en
Publication of JPS56118795A publication Critical patent/JPS56118795A/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

  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)
  • Biological Treatment Of Waste Water (AREA)

Abstract

PURPOSE: To facilitate the waste water purification within a shortened time period in an inexpensive installation under easily controllable operational conditions, by aligning a nonwoven fabric sheet of a desired thickness in a vertically zigzag shape, and carrying the waste water along the lengthwise of the nonwoven fabric sheet.
CONSTITUTION: A filter member 2 composed of a nonwoven fabric sheet having a thickness 0.5W8mm is aligned vertically zigzag at angles of 0.5W90° in a disposing vessel 1. Air is injected onto the substantially whole surface of the sheet 2 from the bottom of the filter bed by an air deffuser 5, while a waste water is carried along the surface of the sheet 2. In this vessel 1, a waste water containing nitric nitrogen and nitrous nitrogen is denitrified under an anaerobic atmosphere. The nonwoven fabric sheet is preferably a spun-bonded nonwoven fabrics made from fiber of 1W15 denier. According to this process, both of ammoniac nitrogen denitrifying and BOD reducing capacities per a volume unit can be raised twice or much higher than those in a conventional floating process.
COPYRIGHT: (C)1981,JPO&Japio
JP2304380A 1980-02-25 1980-02-25 Denitrification of waste water with biological membrane Pending JPS56118795A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2304380A JPS56118795A (en) 1980-02-25 1980-02-25 Denitrification of waste water with biological membrane

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2304380A JPS56118795A (en) 1980-02-25 1980-02-25 Denitrification of waste water with biological membrane

Publications (1)

Publication Number Publication Date
JPS56118795A true JPS56118795A (en) 1981-09-17

Family

ID=12099422

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2304380A Pending JPS56118795A (en) 1980-02-25 1980-02-25 Denitrification of waste water with biological membrane

Country Status (1)

Country Link
JP (1) JPS56118795A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2421199A (en) * 2004-12-17 2006-06-21 Patrick Mcguinness Submerged membrane filtration module

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB2421199A (en) * 2004-12-17 2006-06-21 Patrick Mcguinness Submerged membrane filtration module

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