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http://dx.doi.org/10.5322/JES.2005.14.11.1027

Removal Characteristics of Styrene Vapor in the Biofilter Packed with Loess/Polyurethane Composite Media  

Kang Kyung-Ho (Division of Civil & Environmental Engineering, Cheju National University)
Kam Sang-Kyu (Division of Civil & Environmental Engineering, Cheju National University)
Lee Taek-Kwan (Hungsan Environmental Construction Company)
Lim Sang-Bin (Department of Food Bioengineering, Cheju National University)
Lee Min-Gyu (Division of Applied Chemical Engineering, Pukyong National University)
Publication Information
Journal of Environmental Science International / v.14, no.11, 2005 , pp. 1027-1033 More about this Journal
Abstract
The treatment of styrene vapor was carried out using the biofilter packed with loess/polyurethane composite during continuous operation of 74 days. The microorganisms were adapted within 2-3 days under the experimental conditions of inlet concentration and empty bed contact time (EBCT). At 200 sec of EBCT, the removal efficiency of styrene was 100\% with 200 ppmv of inlet concentration, while $92\%$ with 400 ppmv of inlet concentration. The biofilter showed the stable removal efficiencies of over $74\%$ under the EBCT range from 300 to 75 sec at the 150 ppmv of inlet styrene concentration. The maximum capacity of styrene removal for the biofilter packed with loess/polyurethane was $29g/m^3/hr$. During continuous operation of 74 days, pH of the drain water changed slightly and the pressure drop through the biofilter column was below $45\;mmH_2O/m$.
Keywords
Loess; Polyurethane; Composite media; Biofilter; Styrene;
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