Anaerobic Fermentation for Hydrogen Production from 11 Organic Acids
- 作者：Li jianchangSun keweiZhang wudi
- 会议时间：2009-11-01
- 关键词：Hydrogen Production ; Hydrogen Potential ; Organic Acid ; Anaerobic Fermentation
- 作者单位：Li jianchang(National Engineering Center of Solid Waste Resources Recovery, Kunming University of Science and Technology, Kunming 650093, P. R. China;Provincial Key Lab of Rural Energy Engineering,Yunnan Normal University, Kunming 650092, P. R. China)Sun kewei(National Engineering Center of Solid Waste Resources Recovery, Kun)Zhang wudi(Provincial Key Lab of Rural Energy Engineering,Yunnan Normal University, Kunming 650092, P. R. Chinaming University of Science and Technology, Kunming 650093,)
- 母体文献：第十三届世界湖泊大会论文集
- 会议名称：第十三届世界湖泊大会
- 会议地点：武汉
- 主办单位：中国环境科学学会
- 语种：chi
摘要
The experiments described in this paper investigate anaerobic fermentation for hydrogen production from eleven organic acids using anaerobic activated sludge as inoculums.Hydrogen gas was produced when using citric,malic,lactic,formic,pyruvic,oxalic,and fumaric acid,and the hydrogen potential at 25℃ for those acids is 171.3,117.4,93.5,79.6,75.6,24.6 and 23.7ml/g,respectively.However,no hydrogen was generated when using succinic,butyric,propionatic and acetic acid.According to the hydrogen potential,energy conversion can be calculated and is lower due to an accumulation of butyric,propionatic and acetic acid that cannot be metabolized by hydrogen-producing bacteria.The study also investigates whether or not organic acids can produce hydrogen gas through anaerobic fermentation.The findings indicate the results depend on the free energy change ( △G(°)) of a hydrogen-producing reaction.If the △G(°) is more than O,organic acids cannot produce hydrogen.