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KMID : 0380020030180060448
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Korean Journal of Biotechnology and Bioengineering
2003 Volume.18 No. 6 p.448 ~ p.454
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Removal Characteristics of Toluene in Biofilters Packed with Reticulated-PU-Foams of Different Porosities
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Myung Sung-Woong
Nam Yoon-Su
Lee Yong-Woo
Choi Ho-Seok
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Abstract
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We studied on the removal of toluene vapors in a lab-scale biofilter. There are three biofilters packed with reticulated polyurethane foams of different porosities of 15, 25, 45 PPI (Pore Per Inch) as media. A toluene-degrading strain (Pseudomonas Putida KCCM 11348, ATCC 12633) was naturally immobilized on the filter media by circulating the culture media. Three biofilters were operated under different sets of continuous experiments, varying both the design and operation parameters such as the inlet toluene concentration and the flow rate. Maximum elimination capacity of 115.5g/㎥hr of biofilter packed with foams of 25 PPI was obtained for toluene degradation. The effect of operating conditions such as flow rate, inlet toluene concentration and porosity on the performance of the biofilter was investigated.
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KEYWORD
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Biofilter, reticulated polyurethane foam, toluene, porosity, elimination capacity
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