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KMID : 0545120030130020301
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Journal of Microbiology and Biotechnology
2003 Volume.13 No. 2 p.301 ~ p.304
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Removal of Hydrogen Sulfide, Ammonia, and Benzene by Fluidized Bed Reactor and Biofilter
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KIM, CHONG-WOO
PARK, JIN-SU/CHO, SUNG-KI/OH, KWANG-JOONG/KIM, YOUNG-SIK/KIM, DONGUK
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Abstract
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In this study, hydrogen sulfide (H_2S), ammonia (NH_3), and benzene, which represent the major leather process plant, were removed using a fluidized bed bioreactor and biofilter including Thiobacillus sp. IW and a MY microbial consortium. The critical removal rate was 12 gm^-3h^-1 for H_2S, 11 gm^-3h^-1 for NH_3, and 28 gm^-3h^-1 for benzene by the fluidized bed bioreactor, and 8.5 gm^-3h^-1 for H_2S, 7 gm^-3h^-1 for NH_3 and 25 gm^-3h^-1 for benzene in the biofilter. The average removal efficiency of H_2S, NH_3, and benzene by continuous operation for over 30 days with the fluidized bed bioreactor was 95±3%, 99±1%, and 985%, respectively, whereas that with the biofilter was 96±4%, 95±4%, and 97±3%, respectively. Therefore, the critical removal rate of H_2S, NH_3 and benzene was higher in the fluidized bed bioreactor, whereas the removal efficiency on the continuous operation was similar in both bioreactors.
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KEYWORD
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