农业工程学报2011，Vol.27Issue(12)：217-222,6.DOI:10.3969/j.issn.1002-6819.2011.12.041
温度与有机负荷对猪粪厌氧发酵过程的影响
Effect of temperature and organic loading rates on anaerobic digestion of pig manure
摘要
Abstract
Many of the biogas plants in China run at the lower range of mesophilic conditions and low organic loading rates. The objective of this study was to evaluate the performance (methane yield, production of volatile fatty acid (VFA) and total inorganic carbon (TIC)) of completely stirred tank reactor which was fed with pig manure semi-continuously at different temperature (20, 28, 38°C) and organic loading rates (0.3-4.3 kg/(m3d)). The results showed that the start-up phase last for a long time at 20 °C with low methane yield at organic loading rate (OLR) of 0.3 kg/(m3d) and pH was kept stable with additional NaHCO3 at OLR of 1.3 kg/(m3-d). There was no significant difference on methane yield between 28 °C and 38°C at each phase of this experiment. However, at 28°C, VFA accumulation was observed at OLR of 3.3 and 4.3 kg/(m -d) and the VFA/TIC ratio was 0.4 and 0.6, respectively. For a biogas plant running with low organic loading rate, it seemed to be an energy input saving way if the operation temperature was kept at 28 °C. The results of this study are valuable for the management of agricultural biogas plants.关键词
温度/负荷/厌氧发酵/粪/有机负荷Key words
temperature/ loads/anaerobic digestion/ manures/ organic loading rate分类
农业科技引用本文复制引用
郭建斌,董仁杰,程辉彩,Joachim Clemens,庞昌乐..温度与有机负荷对猪粪厌氧发酵过程的影响[J].农业工程学报,2011,27(12):217-222,6.基金项目
国家"十一五"科技支撑计划课题(2008BADC4B 17) （2008BADC4B 17）
中德合作项目(德国联邦教育与研究部:0330847D,中国科技部:2009DFA32710):北京市教育委员会科学研究与科研基地建设项目《规模化养殖场粪污双向清洁处理与利用研究》. （德国联邦教育与研究部:0330847D,中国科技部:2009DFA32710）
