JPS5520659A - Treating method of waste water using fluidized bed - Google Patents

Treating method of waste water using fluidized bed

Info

Publication number
JPS5520659A
JPS5520659A JP9404578A JP9404578A JPS5520659A JP S5520659 A JPS5520659 A JP S5520659A JP 9404578 A JP9404578 A JP 9404578A JP 9404578 A JP9404578 A JP 9404578A JP S5520659 A JPS5520659 A JP S5520659A
Authority
JP
Japan
Prior art keywords
microbes
ized bed
bed
solid particles
fluid ized
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
JP9404578A
Other languages
Japanese (ja)
Other versions
JPS5739198B2 (en
Inventor
Yoshiteru Yahiro
Masabumi Ishii
Ryuichi Sugimoto
Kazuya 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.)
Mitsubishi Chemical Corp
Original Assignee
Mitsubishi Chemical 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 Chemical Industries Ltd filed Critical Mitsubishi Chemical Industries Ltd
Priority to JP9404578A priority Critical patent/JPS5520659A/en
Publication of JPS5520659A publication Critical patent/JPS5520659A/en
Publication of JPS5739198B2 publication Critical patent/JPS5739198B2/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

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

Abstract

PURPOSE: To maintain the microbial content in the fluid ized bed at a high level by taking out the solid particles in which microbes have propagated from the upper part of the fluid ized bed, stripping off the microbes then returning the solid particles in the fluid ized bed and yet increasing or decreasing the quantities of the solid particles according to the measured microbe adhesion rate value on the fluid ized bed.
CONSTITUTION: At the time of performing biological treatment while flowing the treating water upward to let particles flow on the fluid ized bed composed of solid particles adhered with microbes, the particles in which microbes have propagated are taken out from the upper part of the fluid ized bed. After the microbes are stripped, the solid particles are returned into the bluid ized bed. Futher the microbe adhesion rate in the upper part of the fluid ized bed is measured and the solid particle quantities in the bed are increased or decreased so that the measeured value thereof conforms to the following conditions. Namely, the quantities are increased when the microbe adhesion rate exceeds the upper limit of the formula I (where d is mean particle size mm, u the superficial velocity in a tower of the treating water m/hr) and are decreased when it becomes lower than the lower limit.
COPYRIGHT: (C)1980,JPO&Japio
JP9404578A 1978-08-01 1978-08-01 Treating method of waste water using fluidized bed Granted JPS5520659A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9404578A JPS5520659A (en) 1978-08-01 1978-08-01 Treating method of waste water using fluidized bed

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9404578A JPS5520659A (en) 1978-08-01 1978-08-01 Treating method of waste water using fluidized bed

Publications (2)

Publication Number Publication Date
JPS5520659A true JPS5520659A (en) 1980-02-14
JPS5739198B2 JPS5739198B2 (en) 1982-08-19

Family

ID=14099585

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9404578A Granted JPS5520659A (en) 1978-08-01 1978-08-01 Treating method of waste water using fluidized bed

Country Status (1)

Country Link
JP (1) JPS5520659A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62122560A (en) * 1985-11-23 1987-06-03 Fuji Oil Co Ltd Readily reconstituting food material

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62122560A (en) * 1985-11-23 1987-06-03 Fuji Oil Co Ltd Readily reconstituting food material

Also Published As

Publication number Publication date
JPS5739198B2 (en) 1982-08-19

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