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KMID : 1024520010100040287
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Journal of the Environmental Sciences
2001 Volume.10 No. 4 p.287 ~ p.292
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A Study on Biofilter for Hydrogen Sulfide Removal
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Bin Jung-In
Lee Byung-Hun
Kim Joong-Kyun
Kam Sang-Kyu
Lee Min-Gyu
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Abstract
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A packed bed of volcanic rock was used as deodorizing material to remove hydrogen sulfide(S) from air in a laboratory-scale column, and was inoculated with Thiobacillus sp. as oxidizer. The effects of volcanic rock particle size distribution on system pressure drop were examined. Various tests have been conducted to evaluate the effect of inlet concentration and CBCT(Empty Bed Contact Time) on elimination. The pressure drop for particles of size range from 5.6 to 10 mm was 14 mm/m at a representative gas velocity of 0.25m/s. Biofilter using scoria and Thiobacillus sp. could get the stable removal efficiencies more than 99.9% under inlet concentrations in the range from 30 to 1,100ppm at a constant gas flow rate of /min. removal efficiencies greater than 99% were observed as long as EBCT was longer than 8sec at the 250ppm of inlet concentration. When EBCT was reduced to 5.5 sec, removal efficiency decreased by about 12 percent. The maximum elimination capacity was determined to be 269g-.
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KEYWORD
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Hydrogen sulfide, ordor, biofilter, scoria, Thriobacillus sp
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