ATE562T1 - PROCEDURE FOR QUANTITATIVE DETERMINATION OF THE OXYGEN DEMAND OF WATER CONTAINING OXIDIZABLE SUBSTANCES. - Google Patents

PROCEDURE FOR QUANTITATIVE DETERMINATION OF THE OXYGEN DEMAND OF WATER CONTAINING OXIDIZABLE SUBSTANCES.

Info

Publication number
ATE562T1
ATE562T1 AT79102382T AT79102382T ATE562T1 AT E562 T1 ATE562 T1 AT E562T1 AT 79102382 T AT79102382 T AT 79102382T AT 79102382 T AT79102382 T AT 79102382T AT E562 T1 ATE562 T1 AT E562T1
Authority
AT
Austria
Prior art keywords
oxygen
oxygen demand
containing gas
quantitative determination
water containing
Prior art date
Application number
AT79102382T
Other languages
German (de)
Inventor
Werner Dr. Melzer
Dieter Jaenicke
Original Assignee
Hoechst Aktiengesellschaft
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 Hoechst Aktiengesellschaft filed Critical Hoechst Aktiengesellschaft
Application granted granted Critical
Publication of ATE562T1 publication Critical patent/ATE562T1/en

Links

Classifications

    • G—PHYSICS
    • G01—MEASURING; TESTING
    • G01N—INVESTIGATING OR ANALYSING MATERIALS BY DETERMINING THEIR CHEMICAL OR PHYSICAL PROPERTIES
    • G01N31/00—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods
    • G01N31/12—Investigating or analysing non-biological materials by the use of the chemical methods specified in the subgroup; Apparatus specially adapted for such methods using combustion
    • 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—Biological oxygen demand [BOD] or chemical oxygen demand [COD]

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Health & Medical Sciences (AREA)
  • Chemical & Material Sciences (AREA)
  • Engineering & Computer Science (AREA)
  • Biochemistry (AREA)
  • Pathology (AREA)
  • Immunology (AREA)
  • Molecular Biology (AREA)
  • General Physics & Mathematics (AREA)
  • General Health & Medical Sciences (AREA)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Biomedical Technology (AREA)
  • Medicinal Chemistry (AREA)
  • Food Science & Technology (AREA)
  • Emergency Medicine (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Combustion & Propulsion (AREA)
  • Investigating Or Analyzing Non-Biological Materials By The Use Of Chemical Means (AREA)

Abstract

For the quantitative determination of the total oxygen demand of water containing oxidizable matter, the water is continuously evaporated at about 900 DEG C. in the presence of varying amounts l1, . . . , ln of oxygen-containing gas added per unit of steam at continuously repeated intervals. The oxygen-containing gas should not exceed 1 to 5% by volume, calculated on the amount of steam produced during each interval. The residual oxygen concentrations S1, . . . , Sn in the steam gas/mixture are measured for the different amounts of oxygen-containing gas added and the oxygen demand is calculated from the residual concentrations and the added amounts of the oxygen-containing gas.
AT79102382T 1978-07-21 1979-07-11 PROCEDURE FOR QUANTITATIVE DETERMINATION OF THE OXYGEN DEMAND OF WATER CONTAINING OXIDIZABLE SUBSTANCES. ATE562T1 (en)

Applications Claiming Priority (2)

Application Number Priority Date Filing Date Title
DE19782832043 DE2832043A1 (en) 1978-07-21 1978-07-21 METHOD FOR QUANTITATIVELY DETERMINING THE OXYGEN REQUIREMENT OF WATER CONTAINING OXIDIZABLE SUBSTANCES
EP79102382A EP0007521B1 (en) 1978-07-21 1979-07-11 Method for determining the total oxygen demand of an aqueous dispersion containing oxidizable materials

Publications (1)

Publication Number Publication Date
ATE562T1 true ATE562T1 (en) 1982-01-15

Family

ID=6044979

Family Applications (1)

Application Number Title Priority Date Filing Date
AT79102382T ATE562T1 (en) 1978-07-21 1979-07-11 PROCEDURE FOR QUANTITATIVE DETERMINATION OF THE OXYGEN DEMAND OF WATER CONTAINING OXIDIZABLE SUBSTANCES.

Country Status (8)

Country Link
US (1) US4244695A (en)
EP (1) EP0007521B1 (en)
JP (1) JPS5517496A (en)
AT (1) ATE562T1 (en)
CA (1) CA1120838A (en)
DD (1) DD144961A5 (en)
DE (2) DE2832043A1 (en)
DK (1) DK308179A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5531960A (en) * 1994-11-28 1996-07-02 Madison Metropolitan Sewerage District Automated dissolved oxygen and biochemical oxygen demand analyzer

Family Cites Families (7)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3560156A (en) * 1965-05-03 1971-02-02 Dow Chemical Co Determining the oxygen demand of combustible materials in aqueous dispersions
US3607071A (en) * 1970-03-23 1971-09-21 Procedyne Corp Continuous total organic carbon analyzer and method
BE786000R (en) * 1970-10-30 1973-01-08 Dow Chemical Co DETERMINATION OF THE OXYGEN DEMAND OF DISPERSIONED COMBUSTIBLES
NL7105976A (en) * 1971-04-30 1972-11-01
JPS5315397B2 (en) * 1972-05-02 1978-05-24
US3958937A (en) * 1973-06-07 1976-05-25 Toray Industries, Inc. Method and apparatus for determining total oxygen demand of combustible materials in aqueous dispersion
US4074973A (en) * 1975-02-08 1978-02-21 Toray Industries, Inc. Method and apparatus for determining total oxygen demand of combustible materials in aqueous dispersion

Also Published As

Publication number Publication date
DE2961821D1 (en) 1982-02-25
DD144961A5 (en) 1980-11-12
EP0007521B1 (en) 1982-01-13
DK308179A (en) 1980-01-22
CA1120838A (en) 1982-03-30
US4244695A (en) 1981-01-13
EP0007521A1 (en) 1980-02-06
DE2832043A1 (en) 1980-01-31
JPS5517496A (en) 1980-02-06

Similar Documents

Publication Publication Date Title
GB2023841B (en) Apparatus for measurement of oxygen concentration in fluid
NO156966C (en) PROCEDURE TO REDUCE THE CONCENTRATION OF ONE OR MORE GASES IN A GAS MIXTURE, AND GAS FRACTION APPARATUS FOR EXERCISING THE PROCEDURE.
JPS5522317A (en) Highly oxygen-absorbable, carbon dioxide-producing deoxidizing agent, tips thereof, and producing same
JPS5214074A (en) Method and device to automatically measure the indicator of amount of activated sludge
GB1531962A (en) Method for determining the inorganic carbon content of aqueous liquids
ATE562T1 (en) PROCEDURE FOR QUANTITATIVE DETERMINATION OF THE OXYGEN DEMAND OF WATER CONTAINING OXIDIZABLE SUBSTANCES.
AT379900B (en) METHOD FOR THE QUANTITATIVE DETERMINATION OF CARBON ORGANIC COMPOUNDS IN WATER
JPS5250292A (en) Oil content concentration measuring device
JPS5241451A (en) Biological denitrating method
JPS5345588A (en) Sludge densitometer
JPS548590A (en) Measuring apparatus of chemical oxygen demands
JPS5439194A (en) Sensor for gases dissolved in oil
SU521915A1 (en) Oxidative solution for cleaning gases, for example, acetylene from phosphine
JPS5325059A (en) Process for treating sewage water
JPS5316460A (en) Apparatus for treating sewage water containing residual chlorine
JPS5411151A (en) Water-washing type of coating booth
JPS53126760A (en) Wastewater disposal method and device
JPS5529723A (en) Ammonia measuring method in gas including ammonia and sulfur dioxide
JPS53148155A (en) Method of controlling dissolved oxygen in aeration tank
JPS5316454A (en) Apparatus for treating sewage water containing residual chlorine
JPS5214913A (en) Preventive method from corrosion in inside of tank
DE2960187D1 (en) Process for the continuous chlorination in the liquid phase of olefins as well as a measuring arrangement to determine and adjust the concentration of chlorine as part of an installation for carrying out the process
JPS537977A (en) System for controlling quality of discharged water in sewage treating process
JPS51120791A (en) Method of measuring dissolved ozone
JPS5336964A (en) Method of treating acids mixed waste water containing fluoric acid

Legal Events

Date Code Title Description
REN Ceased due to non-payment of the annual fee
REN Ceased due to non-payment of the annual fee