农业现代化研究2012，Vol.33Issue(3)：380-384,5.
低温沼气功能菌群的选育与试验
Breeding and Testing of Hypothermic Biogas Functional Microflora
摘要
Abstract
Two groups of hypothermic biogas functional microflora were bred from anaerobic environmental and digester samples collected in high latitude and high altitude areas by hypothermic oriented selection. At 13℃ and 10℃, the biogas production rates of the wild low-temperature microflora bred from anaerobic environmental samples were 0.14 iwVd-m3 and 0.10mVd-m3 respectively, with methane contents of 51% and48% correspondingly. However,at the same temperatures, the digester low-temperature microflora bred from household biogas digester samples had lower biogas production rates of 0.06 tnVd-m3 and 0.04 mVd-m3 but higher methane contents of 62.0% and 56.0%. By mixing the two microflora, biogas fermentation was significantly improved with a gas production rate up to 0.15 m3/d · m3 (13 ℃) or 0.11 m3·m3 (10℃), which was much higher than that in the fermentation by either of the microflora and three times as high as that in the fermentation driven by normal temperature microflora. Biogas produced by mixed microflora contained 57.0% (13℃) or 52.0% (10℃) methane, with methane content higher than the biogas from wild low-temperature microflora, lower than that from digester low-temperature microflora, and 19.0% (13℃) or 16.0% (10℃) higher than that generated by normal temperature microflora. The results show that the mixed low-temperature biogas functional microflora is provided with excellent hypothermic biogas-producing properties and a good application prospect.关键词
低温沼气功能菌群/低温定向驯化/低温沼气发酵/产气率/甲烷含量Key words
hypothermic biogas functional microflora/ hypothermic oriented selection/ hypothermic biogas fermentation/ biogas production rate/ methane content分类
农业科技引用本文复制引用
丁建南,于一尊,黄江丽,田晓娟,张国华,张志红..低温沼气功能菌群的选育与试验[J].农业现代化研究,2012,33(3):380-384,5.基金项目
江西省科技支撑计划项目"低温沼气发酵综合技术的研究"(编号:2005IA0500303) （编号:2005IA0500303）
江西省科学院基金项目"低温沼气发酵专属菌群中产甲烷菌种群分析"(编号:2007-YGY-04). （编号:2007-YGY-04）
