Performance and composition of bacterial communities in anaerobic fluidized bed reactors for hydrogen production: Effects of organic loading rate and alkalinity
Performance and composition of bacterial communities in anaerobic fluidized bed reactors for hydrogen production: Effects of organic loading rate and alkalinity
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厌氧流化床制氢反应器中细菌群落的性能和组成：有机负荷率和碱度的影响
DOI：
10.1016/j.ijhydene.2012.08.140
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发表时间：
2012
影响因子：
7.2
通讯作者：
E. L. Silva
中科院分区：
文献类型：
--
作者：
Gessia Momoe Shida;L. T. Sader;E. L. C. Amorim;I. Sakamoto;S. I. Maintinguer;N. K. Saavedra;M. Varesche;E. L. Silva
研究了两个厌氧流化床反应器（afbr）同时运行时，有机负荷率（OLR）和pH缓冲液添加对产氢的影响。用葡萄糖饲喂afbr，并用膨胀粘土作为支撑材料。反应器在30°C的温度下运行，不添加缓冲液（AFBR1），并添加pH缓冲液（AFBR2，碳酸氢钠），olr范围为19.0至140.6 kg COD m−3d−1（COD：化学需氧量）。AFBR1和AFBR2的最大产氢量分别为2.45和1.90 mol H2mol−1glucose （OLR为84.3 kg COD m−3d−1）。AFBR1和AFBR2的产氢率最高，分别为0.95和0.76 L h−1L−1 （OLR为140.6 kg COD m−3d−1）。AFBR1的操作条件有利于Clostridium等细菌的存在，而AFBR2中的细菌包括Clostridium、Enterobacter、Klebsiella、Veillonellaceae、Chryseobacterium、Sporolactobacillus和burkholderaceae。
This study evaluated the effects of the organic loading rate (OLR) and pH buffer addition on hydrogen production in two anaerobic fluidized bed reactors (AFBRs) operated simultaneously. The AFBRs were fed with glucose, and expanded clay was used as support material. The reactors were operated at a temperature of 30 °C, without the addition of a buffer (AFBR1) and with the addition of a pH buffer (AFBR2, sodium bicarbonate) for OLRs ranging from 19.0 to 140.6 kg COD m−3d−1(COD: chemical oxygen demand). The maximum hydrogen yields for AFBR1 and AFBR2 were 2.45 and 1.90 mol H2mol−1glucose (OLR of 84.3 kg COD m−3d−1), respectively. The highest hydrogen production rates were 0.95 and 0.76 L h−1L−1for AFBR1 and AFBR2 (OLR of 140.6 kg COD m−3d−1), respectively. The operating conditions in AFBR1 favored the presence of such bacteria as Clostridium, while the bacteria in AFBR2 included Clostridium, Enterobacter, Klebsiella, Veillonellaceae, Chryseobacterium, Sporolactobacillus, and Burkholderiaceae.
影响因子：
9.5
作者：
Kumar, Sudhir;Nei, Masatoshi;Tamura, Koichiro
通讯作者：
Tamura, Koichiro