香根草中温发酵产沼气的试验研究  

Experimental study on mesophilic biogas fermentation with Vetiveria zizanioides

作　　者：胡晓明[1] 张建萍[2] 张无敌[1] 尹芳[1] 李建昌[1] 徐锐[1] 

机构地区：[1]云南师范大学省农村能源工程重点实验室,云南昆明650092 [2]保山中等专业学校,云南保山678000

出　　处：《科技信息》2008年第27期8-9,共2页Science & Technology Information

基　　金：国家自然科学基金项目(50366002);云南省中青年学术和技术带头人后备人才培养计划(2005py01-16)联合资助

摘　　要：以香根草为发酵原料,在28℃恒温下进行批量沼气发酵,发酵料液体积为1200ml,HRT=90d。结果表明:香根草产沼气潜力(TS)产气潜力为471ml/g,VS产气潜力为512ml/g;香根草的热值为17.784kJ/g;经发酵产沼气的能量转化效率为52.18%;香根草发酵前后的纤维素含量、脂肪含量、木质素含量变化不明显。This paper reported Vetiveria zizanioides can produce methane by anaerobic batch fermentation at 28℃. With 90 days of HRT and 10.47% of TS in 1200ml reactor, its biogas yield has been 471ml/g TS and 512ml/g VS. The calorific value of V. zizanioides is 17.784 kJ/g, the energy conversion efficiency can get to 52.18% by the anaerobic digestion. The content of cellulose, fat and lignin did not change significantly after biogas fermentation.

关 键 词：香根草 中温沼气发酵 产气潜力 能量转化率 

分 类 号：S216.4[农业科学—农业机械化工程]