JPS56147688A - Method and device for fluidized-bed type biological treatment of waste water - Google Patents

Method and device for fluidized-bed type biological treatment of waste water

Info

Publication number
JPS56147688A
JPS56147688A JP4870780A JP4870780A JPS56147688A JP S56147688 A JPS56147688 A JP S56147688A JP 4870780 A JP4870780 A JP 4870780A JP 4870780 A JP4870780 A JP 4870780A JP S56147688 A JPS56147688 A JP S56147688A
Authority
JP
Japan
Prior art keywords
tank
treated water
pipe
carriers
fluidized
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
JP4870780A
Other languages
Japanese (ja)
Other versions
JPS5916516B2 (en
Inventor
Hitoshi Sato
Shozo Harada
Ichiro Nakajima
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 Plant Technologies Ltd
Original Assignee
Hitachi Plant Technologies 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 Plant Technologies Ltd filed Critical Hitachi Plant Technologies Ltd
Priority to JP55048707A priority Critical patent/JPS5916516B2/en
Publication of JPS56147688A publication Critical patent/JPS56147688A/en
Publication of JPS5916516B2 publication Critical patent/JPS5916516B2/en
Expired 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 treat waste water efficiently and obtain treated water of stable water quality by positively flowing out the excess suspended sludge produced in the fluidized bed consisting of granular carriers stuck with micro-organisms, together with treated water into a solid-liquid separating tank.
CONSTITUTION: This consists essentially of a fluidized-bed type waste water treatment tank 1 and a solid-liquid separating tank 3, and a separating pipe 8 for flowing out treated water and washing out the excess suspended sludge as well as a circulation line for circulating the final treated water to the lower part of the tank 1 are provided between the tank 1 and the tank 3. The sectional area of the pipe 8 is so set as to provide the speed of flow smaller than the settling speed of the carriers and larger than the settling speed of the suspended excess sludge. In consequence, the carriers fall from the downward part of the pipe 8 despite the inflow of the carriers together with the treated water into the pipe 8 and are therefore prevented from being carried up to the tank 3.
COPYRIGHT: (C)1981,JPO&Japio
JP55048707A 1980-04-15 1980-04-15 Fluidized bed biological treatment method and treatment equipment for wastewater Expired JPS5916516B2 (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP55048707A JPS5916516B2 (en) 1980-04-15 1980-04-15 Fluidized bed biological treatment method and treatment equipment for wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP55048707A JPS5916516B2 (en) 1980-04-15 1980-04-15 Fluidized bed biological treatment method and treatment equipment for wastewater

Publications (2)

Publication Number Publication Date
JPS56147688A true JPS56147688A (en) 1981-11-16
JPS5916516B2 JPS5916516B2 (en) 1984-04-16

Family

ID=12810783

Family Applications (1)

Application Number Title Priority Date Filing Date
JP55048707A Expired JPS5916516B2 (en) 1980-04-15 1980-04-15 Fluidized bed biological treatment method and treatment equipment for wastewater

Country Status (1)

Country Link
JP (1) JPS5916516B2 (en)

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122095A (en) * 1983-12-07 1985-06-29 Ebara Infilco Co Ltd Biological treatment device
JP2008264710A (en) * 2007-04-23 2008-11-06 Ihi Corp High-pressure fluidized bed aerobic wastewater treatment equipment

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS60122095A (en) * 1983-12-07 1985-06-29 Ebara Infilco Co Ltd Biological treatment device
JPH0210719B2 (en) * 1983-12-07 1990-03-09 Ebara Infilco
JP2008264710A (en) * 2007-04-23 2008-11-06 Ihi Corp High-pressure fluidized bed aerobic wastewater treatment equipment

Also Published As

Publication number Publication date
JPS5916516B2 (en) 1984-04-16

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