中文摘要：

为了研究温度对高浓度恒温厌氧发酵产沼气成分的影响，在4个11．5L的发酵罐中并行批次实验研究19、30、37、52℃下总固体量（TS）为15％时鲜牛粪的恒温厌氧发酵过程，用沼气分析仪实时测量沼气成分．实验结果表明：37℃时厌氧发酵的产气量和产甲烷量最大，累积产气量为232L，累计甲烷产量为116．1L；比30、52℃下分别多产18．2、15．6L甲烷；52、37、30℃下厌氧发酵甲烷的平均体积分数分别为46．6％、46．5％和43．6％．

英文摘要：

In order to study the influence of temperature on composition of biogas fermented in high-con- centrated thermostatic anaerobic environment, the process of anaerobic fermentation of fresh cattle manure with solid concentration of 15% was experimentally investigated, four parallel anaerobic digesters of 11.5 L in volume at 19, 30, 37℃ and 52 ℃ respectively in batch mode. Real-time measurement of biogas compositions was carried out with biogas analyzer. The experimental result showed that the highest cumu- lative yield of biogas and the highest methane yield took place at 37 ℃, the former being 232 L and the lat- ter being 116. 1 L, which compared with the yields at 30, 52 ℃were more than 18. 2 L and 15.6 L. The average methane volume content in anaerobic fermentation at 52, 37 ℃ and 30 ℃ was 46.6%, 46. 5% and 43. 6 %, respectively.