Biodegradation tests involve testing samples in response to various parameters: dilution, nutrient addition, pH, temperature, and others. The pattern of oxygen uptake in aerobic tests; nitrogen gas production in anoxic denitrification tests; methane production in methanogenic tests; hydrogen production during glycolysis; and carbon dioxide production during fermentation reactions gives a measure of the rate and extent of biodegradation of the organic constituents of the test sample.
By Respirometer Systems and Applications, LLC based in Springdale, ARKANSAS (USA).
Instruments for monitoring the aeration-process, nitrification and de-nitrification; chlorination and de-chlorination; as well as the final discharge into the environment.
By SWAN Analytische Instrumente AG based in Hinwil, SWITZERLAND.
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