Treatment of gas from the vent of a fine chemical plant using a pilot-scale biofilter
2009
Ryu, H.W., Soongsil University, Seoul, Republic of Korea | Lee, T.H., Biosaint Co., Anyang, Republic of Korea | Park, C.H., Kyung Hee University, Yongin, Republic of Korea
A pilot-plant biofilter (1750 mm W × 2750 mm L × 2000 mm H) packed with polyurethane foam (20 mm W × 20 mm L × 20 mm H) was installed in an fine chemical plant emitting gas streams containing ethyl alcohol, ethyl acetate, and dichloromethane. The biofilter was successfully operated for 30 days under highly fluctuating incoming concentrations (maximum 3500 ppm) at a residence time of 36 and 60 sec. Both ethyl alcohol and ethyl acetate were removed more than 95%, but dichloromethane removal was less than 50%. Malodor was also removed more than 90% from 17 days after start up.
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