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Effect of Nonionic Surfactant SPAN 20 on the Biodesulfurization Process by Rhodococcus sp. strain IGTS8  

박홍우 (한양대학교 공과대학 화학공학과)
박기돈 (한양대학교 공과대학 화학공학과)
오성근 (한양대학교 공과대학 화학공학과)
Publication Information
KSBB Journal / v.17, no.3, 2002 , pp. 295-301 More about this Journal
Abstract
The effects of nonionic surfactant (SPAN 20) on the desulfurization process by Rhodococcus sp. strain IGTS8 have been investigated at various oil/water ratios, pHs and concentrations of surfactant. The hexadecane containing DBT was employed as model oil. The presence of surfactant in the oil/water mixture stabilized the oil/water interface, thus enhanced the efficiency of desulfurization. The volume percentages of oil in the oil/water mixture were 30, 50 and 70%. The concentrations of surfactant were varied from 0 to 0.33 wt% relative to water phase. In general, the biodesulfurization efficiencies were decreased as the concentration of SPAN 20 and the volume percentage of oil phase increased.
Keywords
biodesulfurization; surfactant; emulsion; DBT; Rhodococcus sp. strain IGTSB;
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