FR2196294A1 - Oxygen demand measurement - for biological sewage treatment has program control for activated sludge and effluent mixtures - Google Patents

Oxygen demand measurement - for biological sewage treatment has program control for activated sludge and effluent mixtures

Info

Publication number
FR2196294A1
FR2196294A1 FR7329250A FR7329250A FR2196294A1 FR 2196294 A1 FR2196294 A1 FR 2196294A1 FR 7329250 A FR7329250 A FR 7329250A FR 7329250 A FR7329250 A FR 7329250A FR 2196294 A1 FR2196294 A1 FR 2196294A1
Authority
FR
France
Prior art keywords
activated sludge
sewage treatment
program control
oxygen demand
effluent
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
FR7329250A
Other languages
French (fr)
Other versions
FR2196294B3 (en
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.)
JM Voith GmbH
Original Assignee
JM Voith GmbH
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 JM Voith GmbH filed Critical JM Voith GmbH
Publication of FR2196294A1 publication Critical patent/FR2196294A1/en
Application granted granted Critical
Publication of FR2196294B3 publication Critical patent/FR2196294B3/fr
Granted legal-status Critical Current

Links

Classifications

    • C—CHEMISTRY; METALLURGY
    • C02—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F—TREATMENT OF WATER, WASTE WATER, SEWAGE, OR SLUDGE
    • C02F3/00—Biological treatment of water, waste water, or sewage
    • C02F3/006—Regulation methods for biological treatment
    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N33/00—Investigating or analysing materials by specific methods not covered by groups G01N1/00 - G01N31/00
    • G01N33/18—Water
    • G01N33/1806—Water biological or chemical oxygen demand (BOD or COD)

Abstract

The effect of the effluent and of the activated sludge on the BOD of biological clarifying plant is determined after the oxygen concentration has been raised by stirring it to near the saturation point. The BOd is measured for samples of activated sludge (AS) alone and for mixtures of AS with pure water and of AS with effluent. The readings are plotted and used for the optimized control of the plant.
FR7329250A 1972-08-17 1973-08-09 Oxygen demand measurement - for biological sewage treatment has program control for activated sludge and effluent mixtures Granted FR2196294A1 (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
DE19722240444 DE2240444A1 (en) 1972-08-17 1972-08-17 PROCESS AND EQUIPMENT FOR DETERMINING THE INFLUENCES OF WASTE WATER AND ACTIVATED SLUDGE ON RESPIRATORY OXYGEN REQUIREMENTS OF BIOLOGICAL TREATMENT PLANTS

Publications (2)

Publication Number Publication Date
FR2196294A1 true FR2196294A1 (en) 1974-03-15
FR2196294B3 FR2196294B3 (en) 1976-07-23

Family

ID=5853792

Family Applications (1)

Application Number Title Priority Date Filing Date
FR7329250A Granted FR2196294A1 (en) 1972-08-17 1973-08-09 Oxygen demand measurement - for biological sewage treatment has program control for activated sludge and effluent mixtures

Country Status (2)

Country Link
DE (1) DE2240444A1 (en)
FR (1) FR2196294A1 (en)

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321128A1 (en) * 1975-08-12 1977-03-11 Stamicarbon Detection of poisons of microorganisms in effluent - sensitively and in a few minutes to protect treatment plant
EP0008725A1 (en) * 1978-09-05 1980-03-19 Firma Edmund Bühler Method and apparatus for determining the oxygen content in a reactor containing a mixture of fluids
FR2646666A1 (en) * 1989-05-03 1990-11-09 Gimat Ind Mess Automati Process and device for determining the chemical oxygen demand of waste waters

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
SE381935B (en) * 1974-04-04 1975-12-22 Kaelle Regulatorer Ab APPLIANCE FOR ACUTE TOXICITY, SPEC. AT A SUBSTROM OF WASTEWATER
DE4442002C2 (en) * 1994-12-05 1997-08-28 Peter M Prof Dr Kunz Process for the quasi-continuous online determination of the available organic carbon compounds in biological wastewater treatment plants

Cited By (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2321128A1 (en) * 1975-08-12 1977-03-11 Stamicarbon Detection of poisons of microorganisms in effluent - sensitively and in a few minutes to protect treatment plant
EP0008725A1 (en) * 1978-09-05 1980-03-19 Firma Edmund Bühler Method and apparatus for determining the oxygen content in a reactor containing a mixture of fluids
FR2646666A1 (en) * 1989-05-03 1990-11-09 Gimat Ind Mess Automati Process and device for determining the chemical oxygen demand of waste waters

Also Published As

Publication number Publication date
FR2196294B3 (en) 1976-07-23
DE2240444A1 (en) 1974-02-28

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Legal Events

Date Code Title Description
ST Notification of lapse