Effects of pretreatment method of natural bacteria source on microbial community and bio-hydrogen production by dark fermentation
- 作者：Zhao-Xia Song ; Yang Dai ; Qi-Long Fan ; Xiao-Hu Li ; Yao-Ting Fan ; yt.fan@zzu.edu.cn ; ytfan1207@yahoo.com.cn ; Hong-Wei Hou
- 关键词：Cow dung compost ; Pretreatment method ; Microbial community ; Bio-hydrogen production ; Dark fermentation
- 刊名：International Journal of Hydrogen Energy
- 出版年：2012
- 期刊代码：42_03603199
- 类别：ch
- 出版时间：April, 2012
- 卷：37
- 期：7
- 页码：5631-5636
- 文件大小：245 K
摘要
The effects of pretreatment method of cow dung compost, which was employed as natural hydrogen bacteria source, on the microbial community, population distribution of microbes and hydrogen production potential were investigated in the batch tests. The maximum hydrogen yield of 290.8聽mL/L-culture appeared in the pretreated method A (infrared drying) by dark fermentation. The pretreated method of compost significantly affected microbial succession, population distribution of microbes. Both Clostridium sp. and Enterobacter sp. were found to be two species of preponderant hydrogen-producing bacteria, the next best was Bacteroides sp. and Veillonella sp., the last was Lactobacillus sp. and Streptococcus sp., which were also essential. The results showed that the mutualism and symbiosis relations of the mixed bacteria played a critical role in hydrogen fermentation process.