Thermophilic fermentative hydrogen production from starch-wastewater with bio-granules
Thermophilic fermentative hydrogen production from starch-wastewater with bio-granules
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DOI：
10.1016/j.ijhydene.2009.04.024
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发表时间：
2009-06
影响因子：
7.2
通讯作者：
Yohei Akutsu;Dong-Yeol Lee;Yongzhi Chi;Y. Li;H. Harada;Hanqing Yu
中科院分区：
文献类型：
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作者：
Yohei Akutsu;Dong-Yeol Lee;Yongzhi Chi;Y. Li;H. Harada;Hanqing Yu
在这项研究中，研究了水力停留时间（HRT）、pH 和底物浓度对上流式厌氧污泥床（UASB）反应器淀粉高温产氢的影响。使用淀粉作为唯一的底物。稳定地实现了连续产氢，最大产氢量为1.7mol H2/mol葡萄糖。以热预处理的产甲烷颗粒为核，成功形成直径为0.5~4.0mm的产氢高温颗粒。颗粒的代谢途径在每个操作参数下都发生了巨大的变化。甲酸或乳酸的产生表明产氢高温颗粒污泥的产氢性能恶化。
In this study, the effects of the hydraulic retention time (HRT), pH and substrate concentration on the thermophilic hydrogen production of starch with an upflow anaerobic sludge bed (UASB) reactor were investigated. Starch was used as a sole substrate. Continuous hydrogen production was stably attained with a maximum H2yield of 1.7mol H2/mol glucose. A H2-producing thermophilic granule was successfully formed with diameter in the range of 0.5–4.0mm with thermally pretreated methanogenic granules as the nuclei. The metabolic pathway of the granules was drastically changed at each operational parameter. The production of formic or lactic acids is an indication of the deterioration of hydrogen production for H2-producing thermophilic granular sludge.