Civil Engineering Department, New Mexico State University, Las Cruces, NM 88003, USA.
Bioresour Technol. 2011 Sep;102(18):8688-95. doi: 10.1016/j.biortech.2011.02.044. Epub 2011 Feb 12.
This study evaluated fermentative biohydrogen production from sucrose supplemented with dairy cattle manure at different sucrose:manure ratios. Hydrogen yields found in this study (2.9-5.3M hydrogen/M sucrose) at ambient temperature are higher than literature results obtained at mesophilic temperatures. This study demonstrated that dairy cattle manure could serve as a buffering agent to maintain recommended pH levels; as a nutrient source to provide the required nutrients for hydrogen production; as a seed to produce hydrogen from sucrose; and as a co-substrate to improve the hydrogen yield. Based on an analysis of the net energy gain, it is concluded that positive net energy gains can be realized with non-thermal pretreatment and/or by combining dark fermentation with anaerobic digestion or microbial fuel cells to extract additional energy from the aqueous products of dark fermentation.
牛粪比例下，用添加了奶牛粪便的蔗糖进行发酵生物制氢。本研究在常温下获得的氢气产量（2.9-5.3M 氢气/M 蔗糖）高于中温条件下的文献结果。本研究表明，奶牛粪便可用作缓冲剂以维持推荐的 pH 值；可用作营养源，为产氢提供所需的营养；可用作种子，使蔗糖产氢；可用作共底物，提高氢气产量。基于对净能量增益的分析，得出的结论是，通过非热预处理和/或结合暗发酵与厌氧消化或微生物燃料电池从暗发酵的水产物中提取额外能量，可实现正的净能量增益。
