Abstract
Biofiltration is a suitable method for eliminating volatile biodegradable organic chemical from waste gases. However, if substances inhibiting microbiological activity are present in the waste gas, biofiltration efficiencies will be poor. Results are presented on inhibition of biofiltration by SO2. Inhibition was observed first in a pilot scale experiment on odor abatement in a food processing factory. Then it was shown in laboratory scale experiments that SO2. concentrations less than 10 ppm have no measurable effect. A concentration of 40 ppm results in 60% inhibition but original efficiency can be restored when the SO2 supply is shut off. A concentration of 100 PPM of SO2 results in complete and permanent inhibition.
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Van Langenhove, H., Lootens, A. & Schamp, N. Inhibitory effects of SO2 on biofiltration of aldehydes. Water Air Soil Pollut 47, 81–86 (1989). https://doi.org/10.1007/BF00468999
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DOI: https://doi.org/10.1007/BF00468999