Treatment of Styrene-Contaminated Airstream in Biotrickling Filter Packed with Slags
Publication: Journal of Environmental Engineering
Volume 124, Issue 9
Abstract
This paper reports the result of studies using a biotrickling filter with blast-furnace slag packings (sizes = 2–4 cm and specific surface area = 120 m2/m3) for treatment of styrene in an airstream. The effects of volumetric styrene loading L, superficial gas velocity U0 and liquid recirculation rate VL on the styrene elimination capacity K, and the removal efficiency K/L were tested. Variations of styrene concentration with packing height as well as rates of nutrient utilization were also tested. The results show that for L< 30 g/m3h, K/L was nearly independent of U0 in the range of 29–67 m/h and was independent of VL in the range of 3.84–9.60 m/h. In this range, the rate of styrene removal was both reaction and diffusion limited and the reaction was of zero-order kinetics. For higher loadings, K/L decreased with increasing U0 and increased with increasing VL and the system approached the condition of reaction limitation.
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Information & Authors
Information
Published In
Journal of Environmental Engineering
Volume 124 • Issue 9 • September 1998
Pages: 844 - 850
Copyright
Copyright © 1998 American Society of Civil Engineers.
History
Published online: Sep 1, 1998
Published in print: Sep 1998
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