酒糟与猪粪混合厌氧发酵产沼气的研究  

Characteristics of Biogas Production for Anaerobic Co-digestion of Wine Lees and Pig Manure

作　　者：孙全平[1,2] 邱凌[1,2] 李自林 井良霄[1,2] 刘芳[1,2] 周彦峰[2,4] 

机构地区：[1]西北农林科技大学农学院,陕西杨凌712100 [2]农业部农村可再生能源开发利用西部科学观测试验站,陕西杨凌712100 [3]陕西省安康市农村能源站,陕西安康725000 [4]西北农林科技大学机械与电子工程学院,陕西杨凌712100

出　　处：《西北农业学报》2013年第3期199-204,共6页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家农村沼气科技支撑项目:西北地区农村沼气科技创新与示范(2010-120);农业部农村能源科技专项:农村沼气新技术研发(2012-66)

摘　　要：为探索酒糟中添加猪粪对厌氧消化特性的影响,采用自行设计的小型厌氧发酵装置进行批量发酵试验。结果表明,酒糟与猪粪的干物质质量比为7∶3时,发酵过程中日均产气量、累积产气量、甲烷体积分数都最大;pH的降低幅度最小,抑制酸化效果最佳;总产气量和总固体产气量分别为31 885mL、263.9mL/g,与其他各组有显著差异。因此,合理调配酒糟与猪粪的比例,能够有效调节料液碳氮比,从而提高酒糟的产气率与利用率。In order to find the effects of anaerobic co-digestion between wine lees and pig manure,a batch of experiments were conducted in a self-manufactured anaerobic fermentation reactor.The results indicated that when the weight proportion were set as 7∶3（wine lees to pig manure）,the highest daily mean biogas production,total biogas production and the volume fraction of methane were obtained;pH value reduction was minimum and acidification restraining was the best;total gas production and total solid biogas production rate were 31 885 mL and 263.9 mL/g,respectively,which was significantly different from other groups;as a conclusion,reasonable regulating of wine lees /pig manure ratio can change the C/N ratio effectively,thus increase the biogas production rate and utilization rate of wine lees.

关 键 词：酒糟 猪粪 厌氧发酵 沼气 

分 类 号：S216.4[农业科学—农业机械化工程]