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논문 기본 정보
- 자료유형
- 학술저널
- 저자정보
- 발행연도
- 2014.1
- 수록면
- 207 - 214 (8page)
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In this study, the growth kinetics of sulfur oxidizing bacteria, Acidithiobacillus thiooxidans, and the effect ofdissolved oxygen were determined in low pH conditions for the effective removal of high concentrations ofhydrogen sulfide. A dual growth kinetic was applied to identify the microbial growth rate at different hydrogensulfide and oxygen concentrations in the liquid. A modified Monod-Gompertz equation was deemed mostappropriate to examine the growth kinetic parameters of A. thiooxidans. The half saturation constants of hydrogensulfide and oxygen for the modified Monod-Gompertz equation were found to be 0.9 and 1.1 mg/L, respectively.
In addition, a bioreactor model, where the Monod-Gompertz equation was modified, was applied to simulatedissolved oxygen concentrations required for the removal of hydrogen sulfide. As a result, the dissolved oxygenconcentrations were 0.5, 1.0, 1.5, and 3.3 mg/L, which were necessary to remove hydrogen sulfide to less than10 ppm at the influent concentrations of 100, 500, 1000 and 3000 ppm, respectively. The required minimumdissolved oxygen concentrations under various conditions including reactor volume, gas retention time, andmicrobial concentrations can be determined using the numerical model developed in this study.
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참고문헌 (22)
참고문헌 신청
Alcántra, S. / 2004 / Hydrogen sulfide oxidation by a microbial consortium in a recirculation reactor system : sulfur formation under oxygen limitation and removal of phenols / Environmental Science and Technology 38(3):918~923
Benjamin, M. M. / 2013 / Water quality engineering: Phsyical/Chemical Treatment Processes / WILEY
Chaiprapat, S. / 2011 / Removal of hydrogen sulfide by complete aerobic oxidation in acidic biofiltration / Process Biochemistry 46(1):344~352
Gourdon, R. / 1998 / Kinetic model of elemental sulfur oxidation by Thiobacillus thiooxidans in batch slurry reactors / Bioprocess Engineering 18(4):241~249
Insel, G. / 2011 / Modelling the effect of biomass induced oxygen transfer limitations on the nitrogen removal performance of membrane bioreactor / Journal of Membrane Science 368(1-2):54~63
Benjamin, M. M. / 2013 / Water quality engineering: Phsyical/Chemical Treatment Processes / WILEY
Chaiprapat, S. / 2011 / Removal of hydrogen sulfide by complete aerobic oxidation in acidic biofiltration / Process Biochemistry 46(1):344~352
Gourdon, R. / 1998 / Kinetic model of elemental sulfur oxidation by Thiobacillus thiooxidans in batch slurry reactors / Bioprocess Engineering 18(4):241~249
Insel, G. / 2011 / Modelling the effect of biomass induced oxygen transfer limitations on the nitrogen removal performance of membrane bioreactor / Journal of Membrane Science 368(1-2):54~63
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