• Title/Summary/Keyword: Thiobacillus novellus SRM

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Optimization of the Sulfur-oxidzing Bacteria, Thiobacillus novellus SRM (황 산화 세균인 Thiobacillus novellus SRM 성장 최적화)

  • 권규혁;차월석;고한철;이광연;박돈희;차진명
    • KSBB Journal
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    • v.18 no.6
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    • pp.443-447
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    • 2003
  • The microorganism was isolated from the night soil treatment plant for the removal of sulfur compounds. The growth conditions of the sulfur-oxidizing bacteria were investigated and the isolate characterized as Thiobacillus noveilus SRM. The optimal pH of Thiobacillus novellus SRM on cell growth was pH 7.0 and the optimal temperature was 30$^{\circ}C$ and the optimal air flow rate was 1 vvm, respectively. As a results of cell growth from the Monod plot, the specific growth rate was 0.032 hr$\^$-l/, $V_{max}$ was 1.43 hr$\^$-l/ and $K_{m}$ was 0.32, respectively. The thiosulfate oxidation by Thiobacillus novellus SRM was made of sulfate ion. The sulfate ion reduced pH and decreased cell growth.