猪粪污固液分离处理对能源回收的影响  

Effect of Solid-liquid Separation on Energy Recovery from Pig Dung Wastewater Treatment

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

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

出　　处：《中国沼气》2008年第3期26-28,36,共4页China Biogas

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：在30℃恒温条件下,以猪粪为原料,通过采用固液分离后液体发酵和不经分离直接混合发酵两种方法,来研究固液分离与否对沼气产量的影响。结果表明:混合发酵的沼气产量是固液分离后液体发酵的产气量的4倍。因此,建议工程上采用全混合发酵,以15天作为滞留时间,更有利于能源的回收。Effect of solid-liquid separation on biogas yield in anaerobic fermentation of pig dung wastewater was experimented under the constant temperature of 30℃. The result showed that the biogas yield of pig wastewater without solid-liquid separation are nearly 4 times that of liquid fraction fermentation after solid-liquid separation. So complete mixed fermentation without solid-liquld separation with 15 days of HRT was recommended for energy recovery from pig wastewater treatment.

关 键 词：猪粪 固液分离 厌氧发酵 产气量 产气率 

分 类 号：S216.4[农业科学—农业机械化工程]