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KMID : 1024519950040020215
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Journal of the Environmental Sciences
1995 Volume.4 No. 2 p.215 ~ p.222
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Removal of Malordorous Sulfur Compounds by Thiobacilius neapolitanus R-10
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Won Yong-Don
Park Sang-Bo
Lee Won-Koo
Song Seung-Koo
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Abstract
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Thiokncillus neapolitanus R-10 isolated from sludge of night soil, showed an oxidizing activity on several malodorous sulfur compounds. The microbe successfully utilized hydrogen sulfide(H2S), methy mercaptan(MM), dimethyl sulfide(DMS) and dimethyldisulfide(DMDS) during the batch culture reaction, of which H2S was rather rapidly oxidized. To examine the ability for removal of malodorous sulfur compounds, various concentrations of sulfide substrates were supplemented separately to basal medium and their responses were investigated. As the concentration of sulfide was increased, growth was accelerated within three days of cultivation. 2.5mM was the most favorable substrate concentration of sulfide added for all cases tested. However, when the concentration of sulfur compounds were raised over 4M, they behaved as a growth inhibitor.
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KEYWORD
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Thiobacillus neopolitanus R-10, malodorous sulfur compounds
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