Nitrification of industrial waste-waters with high nitrogen concentration in aerated packed-bed reactors.

Abstract

The use of a two-step aerated packed-bed reactor yielded 99% nitrification of inorganic nitrogenous wastes carrying 800 to 1,300 mg N/l (COD of the wastes 55 mg O2/1). The beds were aerated with air enriched in CO2 pH values between the units were routinely adjusted. The efficiency of nitrification was 33 mg N/l/h. A change of the composition of the wastes… (More)

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