Toluene removal biofilter modeling: Optimization and case study |
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Authors: | Alex De Visscher Gui Qin Li |
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Institution: | aDepartment of Chemical & Petroleum Engineering & Centre for Environmental Engineering Research and Education, Schulich School of Engineering, University of Calgary, Calgary, AB, Canada |
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Abstract: | Based on the model proposed by De Visscher and Van Cleemput for methane oxidation in landfill cover soils, a simulation model for biofiltration of toluene-contaminated air has been developed for biofilters with substrate inhibition. A convenient way to optimize biofilter performance was developed assuming Haldane kinetics. It was calculated that for a typical oilsands operation emitting 200 ton of toluene annually, 90% of the toluene can be removed by a 740 m3 biofilter, if the waste gas sent to the biofilter has a toluene concentration of 2.25 g m−3. The optimal initial concentration increases with increasing target efficiency. |
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Keywords: | Biofiltration Model Haldane kinetics Logistic growth Pirt kinetics |
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