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KMID : 0380020060210030188
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Korean Journal of Biotechnology and Bioengineering
2006 Volume.21 No. 3 p.188 ~ p.193
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Removal of Gaseous Styrene using a Pilot-Scale Rotating Drum Biotrickling Filter
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Hwang Jae-Woong
Lim Ji-Sung
Chang Seok-Jin
Lee Eun-Yul
Choi Cha-Yong
Park Sung-Hoon
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Abstract
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A new type of biofilter, a rotating drum biotrickling filter (RDBF), was developed and operated for the removal of styrene from industrial waste gas. The porous polyurethane foam sheet was used as a packing materials for the RDBF and a pure culture of Gram-positive bacterium Brevibacillus sp. SP1 was used as an inoculum. The reactor showed a short start-up period of 18 days, during which uniform biofilms were developed on the packing. During a steady operation at an incoming styrene concentration of 200 ppmv and a retention time of 0.5 min, a high and stable removal of styrene over 95% was observed. The maximum elimination capacity was estimated to be 125 g/m3·hr. The outstanding performance was attributed to an efficient gas-liquid mass transfer and the appropriate supply of nutrient solution to the biofilm microorganisms on the packing by the rotation of the drum.
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KEYWORD
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Biofilter, rotating drum biotrickling filter, polyurethane foam, styrene
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