JPS56147693A - Method for determinating sludge concentration in aeration tank - Google Patents

Method for determinating sludge concentration in aeration tank

Info

Publication number
JPS56147693A
JPS56147693A JP5171880A JP5171880A JPS56147693A JP S56147693 A JPS56147693 A JP S56147693A JP 5171880 A JP5171880 A JP 5171880A JP 5171880 A JP5171880 A JP 5171880A JP S56147693 A JPS56147693 A JP S56147693A
Authority
JP
Japan
Prior art keywords
flow
tank
rates
circuiting
piston
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
JP5171880A
Other languages
Japanese (ja)
Other versions
JPH034859B2 (en
Inventor
Hideo Ikeda
Ryosuke Miura
Itaru Takase
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.)
Toshiba Corp
Original Assignee
Toshiba Corp
Tokyo Shibaura Electric 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 Toshiba Corp, Tokyo Shibaura Electric Co Ltd filed Critical Toshiba Corp
Priority to JP5171880A priority Critical patent/JPS56147693A/en
Publication of JPS56147693A publication Critical patent/JPS56147693A/en
Publication of JPH034859B2 publication Critical patent/JPH034859B2/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 determine sludge concn. accurately by using time series of numerical values by monitoring means for sewage flow rates, sludge concns., etc. as inputs, and total-mixing-flow-to-volume ratios, piston-flow-to-volume ratios and short- circuiting flow rates as parameters.
CONSTITUTION: An arithmetic circuit using the volume ratios of the perfectly mixed flow part which is the main flow in a segment tank and the piston flow part as well as the ratios of the short-circuiting flow or counter current flow which is the side flow of said flow to the inflow rates of the segment tank as parameters by using the model consisting of the mixed flow combined by adding the perfectly mixed flow 12-1 or piston flow 12-2 or diffused flow or the weights of their flow rates is provided. If this segment tank 3 is assumed to be the j-th tank counted from the inlet of the aeration tanks, the mixed liquid flowed into the j tank by passing the clearance 10 of the semgnet part from the prestage tank j-1, tank 7-1 partly branches short-circuiting flow 8 then it combines with counter current flow 14 to main flow 12.
COPYRIGHT: (C)1981,JPO&Japio
JP5171880A 1980-04-21 1980-04-21 Method for determinating sludge concentration in aeration tank Granted JPS56147693A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
JP5171880A JPS56147693A (en) 1980-04-21 1980-04-21 Method for determinating sludge concentration in aeration tank

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
JP5171880A JPS56147693A (en) 1980-04-21 1980-04-21 Method for determinating sludge concentration in aeration tank

Publications (2)

Publication Number Publication Date
JPS56147693A true JPS56147693A (en) 1981-11-16
JPH034859B2 JPH034859B2 (en) 1991-01-24

Family

ID=12894664

Family Applications (1)

Application Number Title Priority Date Filing Date
JP5171880A Granted JPS56147693A (en) 1980-04-21 1980-04-21 Method for determinating sludge concentration in aeration tank

Country Status (1)

Country Link
JP (1) JPS56147693A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219995A (en) * 1982-06-14 1983-12-21 Toshiba Corp Method and apparatus for controlling amount of activated sludge

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS58219995A (en) * 1982-06-14 1983-12-21 Toshiba Corp Method and apparatus for controlling amount of activated sludge

Also Published As

Publication number Publication date
JPH034859B2 (en) 1991-01-24

Similar Documents

Publication Publication Date Title
JPS6369595A (en) Method and device for controlling operation in intermittent-aeration activated sludge process
JPS56147693A (en) Method for determinating sludge concentration in aeration tank
JPS6451197A (en) Biological nitration and denitrification plant of waste water
JPS61187991A (en) Chlorination control device for clean water plant
JPS571490A (en) Method and apparatus for automatical control of aeration in active sludge process for disposal of sewage
JPS5613085A (en) Control unit of excess sludge flow rate
JPS55144524A (en) Determining method of sludge concentration in aeration vessel
JPS5579091A (en) Drawing controller for excessive sludge
JPS5613084A (en) Control unit of excess sludge flow rate
JPS5284847A (en) Controlling device for active sludge water treating apparatus
JPS5730591A (en) Method and apparatus for controlling injection of chlorine into raw water
JPS54127154A (en) Automatic control system for activated sludge process
JPS57156088A (en) Simulation method for running sludge water
JPS56115687A (en) Optimum operating method for sewage treatment system by activated sludge process
JPS56166997A (en) Control method for sludge-digesting vessel
JPS5511050A (en) Contact oxidation method of long water channel and apparatus thereof
JPS55102495A (en) Excess sluge drawing control in sewage treatment plant
JPS5444594A (en) Measuring method of oxygen utilization speed of activated sludge
JPS5556895A (en) Predictive controlling method for concentration of mixed liquor suspended solid in active sludge method
JPS55127193A (en) Controlling method of returned sludge
JPS5547191A (en) Controller for returned sludge concentration and total sludge quantity
JPS55124597A (en) Controller for return sludge flow rate
JPS55111896A (en) Flow control apparatus for returned sludge
JPS565186A (en) Microorganism concentration controller for activated sludge in aeration tank
JPS57153793A (en) Controller for concentration of bacteria in active sludge inside aeration vessel