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)
  • Physics & Mathematics (AREA)
  • Analytical Chemistry (AREA)
  • Molecular Biology (AREA)
  • General Health & Medical Sciences (AREA)
  • General Physics & Mathematics (AREA)
  • Immunology (AREA)
  • Combustion & Propulsion (AREA)
  • Biodiversity & Conservation Biology (AREA)
  • Biomedical Technology (AREA)
  • Emergency Medicine (AREA)
  • Food Science & Technology (AREA)
  • Medicinal Chemistry (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
DE2832043A1 (en) 1980-01-31
US4244695A (en) 1981-01-13
DK308179A (en) 1980-01-22
JPS5517496A (en) 1980-02-06
CA1120838A (en) 1982-03-30
EP0007521A1 (en) 1980-02-06
DE2961821D1 (en) 1982-02-25
DD144961A5 (en) 1980-11-12
EP0007521B1 (en) 1982-01-13

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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