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KMID : 1094720080130030325
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Biotechnology and Bioprocess Engineering
2008 Volume.13 No. 3 p.325 ~ p.331
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Removal study of hydrogen sulfide using natural second metabolites
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Park Young-Gyu
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Abstract
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This paper reports on the experimental investigation carried out to evaluate the physical optimal conditions in a packed absorption column to remove odorous chemical of hydrogen sulfide gas (H2S). H2S is a highly undesirable contaminant that is most commonly from environmental treatment facilities. Natural second metabolites extracted from conifer trees were used to remove H2S via chemical neutralization. The absorbent of natural second metabolites achieved a removal efficiency of 62% by itself. However, the removal efficiency was increased to 96% using complex absorbent mixed with 1.0% of an amine chemical. The liquid mass transfer coefficient was used to determine the conditions for the optimal removal efficiency using the convective flow rate, temperature, and pH. The results show that an aqueous solution containing natural second metabolites might be a good absorbent in a column packed with Raschig rings for the biological removal of H2S.
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KEYWORD
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natural second metabolite, odor, absorbent, hydrogen sulfide, packed column
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