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首页> 外文期刊>Applied Microbiology and Biotechnology >Effect of carbon monoxide, hydrogen and sulfate on thermophilic (55°C) hydrogenogenic carbon monoxide conversion in two anaerobic bioreactor sludges
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Effect of carbon monoxide, hydrogen and sulfate on thermophilic (55°C) hydrogenogenic carbon monoxide conversion in two anaerobic bioreactor sludges

机译：一氧化碳，氢气和硫酸盐对两种厌氧生物反应器污泥中嗜热（55°C）氢气一氧化碳转化率的影响

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摘要

The conversion routes of carbon monoxide (CO) at 55°C by full-scale grown anaerobic sludges treating paper mill and distillery wastewater were elucidated. Inhibition experiments with 2-bromoethanesulfonate (BES) and vancomycin showed that CO conversion was performed by a hydrogenogenic population and that its products, i.e. hydrogen and CO2, were subsequently used by methanogens, homo-acetogens or sulfate reducers depending on the sludge source and inhibitors supplied. Direct methanogenic CO conversion occurred only at low CO concentrations [partial pressure of CO (P CO) <0.5 bar (1 bar=105 Pa)] with the paper mill sludge. The presence of hydrogen decreased the CO conversion rates, but did not prevent the depletion of CO to undetectable levels (<400 ppm). Both sludges showed interesting potential for hydrogen production from CO, especially since after 30 min exposure to 95°C, the production of CH4 at 55°C was negligible. The paper mill sludge was capable of sulfate reduction with hydrogen, tolerating and using high CO concentrations (P CO
机译：阐明了在55°C时处理造纸厂和酒厂废水的大规模厌氧污泥转化一氧化碳（CO）的路线。用2-溴乙烷磺酸盐（BES）和万古霉素进行的抑制实验表明，CO转化是由生氢种群进行的，其产氢，CO2 随后被产甲烷菌，高产乙酸菌或硫酸盐还原剂使用，具体取决于提供污泥源和抑制剂。仅在造纸厂污泥中，低甲烷浓度（CO分压（CO（P CO ）<0.5 bar（1 bar = 105 Pa））时才发生甲烷直接甲烷转化。氢的存在降低了CO的转化率，但并未阻止CO的消耗达到不可检测的水平（<400 ppm）。两种污泥均显示出由CO产生氢气的潜在潜力，特别是因为在暴露于95°C 30分钟后，在55°C时CH4的产生可忽略不计。造纸厂的污泥能够用氢气还原硫酸盐，可以耐受并使用高浓度的CO（P CO

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  • 来源
    《Applied Microbiology and Biotechnology》 |2004年第3期|421-428|共8页
  • 作者

    J. Sipma; R. J. W. Meulepas; S. N. Parshina; A. J. M. Stams; G. Lettinga; P. N. L. Lens;

  • 作者单位

    Sub−department of Environmental Technology Wageningen University;

    Sub−department of Environmental Technology Wageningen University;

    Laboratory of Microbiology of Anthropogenic Environments Institute of Microbiology Russian Academy of Sciences;

    Laboratory of Microbiology Wageningen University;

    Sub−department of Environmental Technology Wageningen University;

    Sub−department of Environmental Technology Wageningen University;

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