The Effect of Oxygen Supply on the Dual Growth Kinetics of Acidithiobacillus thiooxidans under Acidic Conditions for Biogas Desulfurization
作者: Hyeong-Kyu NamgungJiHyeon Song
作者单位: 1Department of Civil and Environmental Engineering, Sejong University, 98 Gunja-Dong, Seoul 143-747, Korea
刊名: International Journal of Environmental Research and Public Health, 2015, Vol.12 (2), pp.1368-1386
来源数据库: Directory of Open Access Journals
DOI: 10.3390/ijerph120201368
关键词: Biogas desulfurizationSulfur oxidizing bacteriaAcidithiobacillus thiooxidansAcidic conditionDual growth kineticModel simulation
原始语种摘要: In this study, to simulate a biogas desulfurization process, a modified Monod-Gompertz kinetic model incorporating a dissolved oxygen (DO) effect was proposed for a sulfur-oxidizing bacterial (SOB) strain, Acidithiobacillus thiooxidans, under extremely acidic conditions of pH 2. The kinetic model was calibrated and validated using experimental data obtained from a bubble-column bioreactor. The SOB strain was effective for H2S degradation, but the H2S removal efficiency dropped rapidly at DO concentrations less than 2.0 mg/L. A low H2S loading was effectively treated with oxygen supplied in a range of 2%–6%, but a H2S guideline of 10 ppm could not be met, even with an oxygen supply greater than 6%, when the H2S loading was high at a short gas retention time of 1 min and a H2S inlet...
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  • oxygen 
  • effective 有效的
  • oxidizing 氧化
  • removal 消去
  • bioreactor 生物反应器
  • influent 
  • aerobic 需氧的
  • concentration 浓度
  • condition 条件
  • efficiency 效率