PROCESS AND DEVICE FOR DETERMINING THE BIOLOGICAL OXYGEN DEMAND OF SEWAGE

European Patent Office Patent

PATENT NO 0855023
APP PUB NO EP-0855023-A1
SERIAL NO

96932557

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PCT No. PCT/EP96/04083 Sec. 371 Date Jul. 9, 1998 Sec. 102(e) Date Jul. 9, 1998 PCT Filed Sep. 18, 1996 PCT Pub. No. WO97/14960 PCT Pub. Date Apr. 24, 1997In order to determine the biological oxygen demand of sewage, a sample of sewage is taken into a reaction vessel in which there is a biological bath which is kept moving turbulently by an agitator. An oxygen probe measure the oxygen consumption per unit time. After each measuring cycle the reaction vessel is rinsed with diluting water and is then ready for another measuring cycle. The reaction vessel penetrates into the sewage to be tested. The sewage sample enters the reaction vessel via an aperture.

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