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首页> 外文期刊>Bioresource Technology: Biomass, Bioenergy, Biowastes, Conversion Technologies, Biotransformations, Production Technologies >Fermentative hydrogen production in an up-flow anaerobic biofilm reactor inoculated with a co-culture of Clostridium acetobutylicum and Desulfovibrio vulgaris
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Fermentative hydrogen production in an up-flow anaerobic biofilm reactor inoculated with a co-culture of Clostridium acetobutylicum and Desulfovibrio vulgaris

机译：在膨胀的厌氧生物膜反应器中发酵氢气产生，其接种着乙酰苯甲酸梭菌和Desurovibrie的共培养

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Dark fermentation systems often show low H-2 yields and unstable H-2 production, as the result of the variability of microbial dynamics and metabolic pathways. Recent batch investigations have demonstrated that an artificial consortium of two anaerobic bacteria, Clostridium acetobutylicum and Desulfovibrio vulgaris Hildenborough, may redirect metabolic fluxes and improve H-2 yields. This study aimed at evaluating the scale-up from batch to continuous H-2 production in an up-flow anaerobic packed-bed reactor (APBR) continuously fed with a glucose-medium. The effects of various parameters, including void hydraulic retention time (HRTv), pH, and alkalinity, on H-2 production performances and metabolic pathways were investigated. The results demonstrated that a stable H-2 production was reached after 3-4 days of operation. H-2 production rates increased significantly with decreasing HRTv from 4 to 2 h. Instead, H-2 yields remained almost stable despite the change in HRTv, indicating that the decrease in HRTv did not affect the global metabolism. (C) 2016 Elsevier Ltd. All rights reserved.
机译：由于微生物动力学和代谢途径的可变性，暗发酵系统通常显示出低H-2产量和不稳定的H-2生产。最近的分批调查表明，两个厌氧细菌，乙酰丙基丁基和脱硫Hildenborough的人工联盟可以重定向代谢助熔剂并改善H-2产率。该研究旨在评估从批次的批次中的扩展到连续的H-2生产中，连续喂食葡萄糖介质。研究了各种参数，包括空隙液压保留时间（HRTV），pH和碱度，对H-2产生性能和代谢途径进行了影响。结果表明，在3-4天的操作后达到了稳定的H-2生产。 H-2生产率显着增加，从4到2小时降低。相反，尽管HRTV变化，但H-2产量几乎保持稳定，表明HRTV的降低不影响全球新陈代谢。 （c）2016 Elsevier Ltd.保留所有权利。

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