JPS5721995A - High-efficiency aerating method - Google Patents

High-efficiency aerating method

Info

Publication number
JPS5721995A
JPS5721995A JP9565080A JP9565080A JPS5721995A JP S5721995 A JPS5721995 A JP S5721995A JP 9565080 A JP9565080 A JP 9565080A JP 9565080 A JP9565080 A JP 9565080A JP S5721995 A JPS5721995 A JP S5721995A
Authority
JP
Japan
Prior art keywords
spouted
density
gas
diameter
expression
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
JP9565080A
Other languages
Japanese (ja)
Other versions
JPS6135917B2 (en
Inventor
Harumi Matsuzaki
Sankichi Takahashi
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 JP9565080A priority Critical patent/JPS5721995A/en
Publication of JPS5721995A publication Critical patent/JPS5721995A/en
Publication of JPS6135917B2 publication Critical patent/JPS6135917B2/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

Abstract

PURPOSE: To utilize O2 efficiently at a maximum in an active sludge treating method which aerates gas containing O2, by varying the diameter of spouted air bubble so that the density of O2 in spouted gas and that in exhaust gas bear a specific relation.
CONSTITUTION: When gas containing O2 is aerated, the diameter of a spouted air bubble is varied according to the expression. In the expression, (a0) is the density of O2 in the spouted gas, and (a) is that in exhaust gas when 100% is regarded as 1. While the said expression is satisfied, gas having optional O2 density is spouted to maximize DO density, and O2 is utilized effectively at a maximum. In this case, the DO density has the least variations with the diameter of the spouted air bubble diameter for obtaining the operation conditions, and the operation is facilitated. Thus, the dissolution efficiency of O2 is improved and the O2 density in the spouted gas is reduced by about 30W50%.
COPYRIGHT: (C)1982,JPO&Japio
JP9565080A 1980-07-15 1980-07-15 High-efficiency aerating method Granted JPS5721995A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP9565080A JPS5721995A (en) 1980-07-15 1980-07-15 High-efficiency aerating method

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP9565080A JPS5721995A (en) 1980-07-15 1980-07-15 High-efficiency aerating method

Publications (2)

Publication Number Publication Date
JPS5721995A true JPS5721995A (en) 1982-02-04
JPS6135917B2 JPS6135917B2 (en) 1986-08-15

Family

ID=14143368

Family Applications (1)

Application Number Title Priority Date Filing Date
JP9565080A Granted JPS5721995A (en) 1980-07-15 1980-07-15 High-efficiency aerating method

Country Status (1)

Country Link
JP (1) JPS5721995A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039984A1 (en) * 1996-04-25 1997-10-30 K.V. Associates, Inc. Subsurface remediation method and apparatus

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
WO1997039984A1 (en) * 1996-04-25 1997-10-30 K.V. Associates, Inc. Subsurface remediation method and apparatus

Also Published As

Publication number Publication date
JPS6135917B2 (en) 1986-08-15

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