JPS56126491A - Biological treatment of wastewater - Google Patents

Biological treatment of wastewater

Info

Publication number
JPS56126491A
JPS56126491A JP2935680A JP2935680A JPS56126491A JP S56126491 A JPS56126491 A JP S56126491A JP 2935680 A JP2935680 A JP 2935680A JP 2935680 A JP2935680 A JP 2935680A JP S56126491 A JPS56126491 A JP S56126491A
Authority
JP
Japan
Prior art keywords
air
propeller
discharged
tank
diffusing cylinder
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
JP2935680A
Other languages
Japanese (ja)
Inventor
Takashi Mashita
Tetsuya Kiguchi
Akira Yamamoto
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.)
Kawasaki Heavy Industries Ltd
Original Assignee
Kawasaki 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 Kawasaki Heavy Industries Ltd filed Critical Kawasaki Heavy Industries Ltd
Priority to JP2935680A priority Critical patent/JPS56126491A/en
Publication of JPS56126491A publication Critical patent/JPS56126491A/en
Pending legal-status Critical Current

Links

Landscapes

  • Purification Treatments By Anaerobic Or Anaerobic And Aerobic Bacteria Or Animals (AREA)

Abstract

PURPOSE: To make it easier to perform switching of anaerobic and aerobic conditions and to improve the operation control in a biochemical treatment device having a set of two reacting tanks and one settling tank, by contriving an under water aerating-agitating mechanism so as to be used for both aerating and agitating.
CONSTITUTION: When the agitation of anaerobic atmosphere is performed, the water brought up by propeller 23 is introduced into draught tube 24 and then forcibly discharged a little upward from the whole periphery and the inside of tank is agitated like a convection circulation. Moreover, when the aeration of aerobic atmosphere is performed, air diffusing cylinder 25 of porous basket type rotates along with propeller 23, and the air is introduced through air pipe 26 and discharged into air diffusing cylinder 25. Then, rotating air diffusing cylinder 25 shears and breaks the air into minute bubbles, and the bubbles are sucked by propeller 23 together with wastewater in the tank and then discharged. Thus a complete gas-liquid contact mixing aeration is performed.
COPYRIGHT: (C)1981,JPO&Japio
JP2935680A 1980-03-08 1980-03-08 Biological treatment of wastewater Pending JPS56126491A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP2935680A JPS56126491A (en) 1980-03-08 1980-03-08 Biological treatment of wastewater

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP2935680A JPS56126491A (en) 1980-03-08 1980-03-08 Biological treatment of wastewater

Publications (1)

Publication Number Publication Date
JPS56126491A true JPS56126491A (en) 1981-10-03

Family

ID=12273915

Family Applications (1)

Application Number Title Priority Date Filing Date
JP2935680A Pending JPS56126491A (en) 1980-03-08 1980-03-08 Biological treatment of wastewater

Country Status (1)

Country Link
JP (1) JPS56126491A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62244496A (en) * 1986-04-16 1987-10-24 Ebara Res Co Ltd Treatment of waste water

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222356A (en) * 1975-08-13 1977-02-19 Nishihara Environ Sanit Res Corp Digesting process of contaminated organic liquid and equipment therefo r
JPS5421049A (en) * 1977-07-19 1979-02-16 Blum Albert Method of and device for introducing air into liquid
JPS553845A (en) * 1978-06-23 1980-01-11 Kawasaki Heavy Ind Ltd Biological treating method and apparatus for waste water

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS5222356A (en) * 1975-08-13 1977-02-19 Nishihara Environ Sanit Res Corp Digesting process of contaminated organic liquid and equipment therefo r
JPS5421049A (en) * 1977-07-19 1979-02-16 Blum Albert Method of and device for introducing air into liquid
JPS553845A (en) * 1978-06-23 1980-01-11 Kawasaki Heavy Ind Ltd Biological treating method and apparatus for waste water

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS62244496A (en) * 1986-04-16 1987-10-24 Ebara Res Co Ltd Treatment of waste water
JPH0318958B2 (en) * 1986-04-16 1991-03-13 Ebara Sogo Kenkyusho Kk

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