牛粪水稻秸秆厌氧共发酵产沼气操作参数优化  

Operation Parameters Optimization of Anaerobic Co-digestion from Dairy Manure and Straw

作　　者：张钧[1] 王月[1] 黄培操 管贤贤 卢赫宇 孙洋洋[1] 石利军[1] 

机构地区：[1]天津农学院农学与资源环境学院,天津300384

出　　处：《天津农学院学报》2017年第1期58-61,共4页Journal of Tianjin Agricultural University

基　　金：天津市科技支撑计划重点项目"规模化种养殖废弃物生态循环利用技术集成与示范"(13ZCZDNC09700);天津市大学生创新创业训练计划项目"农业固体废弃物厌氧发酵产沼气工艺优化研究"(201610061141)

摘　　要：在牛粪中添加水稻秸秆进行厌氧共发酵产沼气,考察接种量、发酵温度、原料固体含量对发酵产沼气效果的影响。结果表明:厌氧发酵接种是必需的,随着接种量增多产气量增大,适宜的接种比例为10%(质量比);常温、中温(36℃)和高温(55℃)3种温度条件下,中高温发酵产气效果较好,中温更适合发酵;在20%、10%、5%(质量比)3种固体含量条件下,固体含量越大产气量波动越大,10%固体含量产气效果最好,发酵前30天累积产气量可达4 710 m L,容积产气率为0.313 m^3/(m^3·d)。本试验所得的结果可为牛粪水稻秸秆厌氧共发酵的实际应用提供参考。In this article, anaerobic co-digestion of dairy manure and straw was conducted to produce biogas. Influence of several operation parameters including inoculum amount, temperature and solid content on biogas production were investigated. The result showed that incubation was necessary during anaerobic co-digestion of dairy manure and straw and appropriate inoculation proportion was about 10% （mass percent） . Mesophilic condition （36 ℃ ） and thermophilic condition （55 ℃ ） appeared higher biogas production than room temperature, and it was suggested that mesophilic condition was more appropriate. Under three solid contents of 20%, 10% and 5% （mass percent） , biogas production amount appeared larger fluctuation when solid content increased. 10% was more suitable for anaerobic digestion to produce biogas with total biogas production amount of 4 710 mL after 30 days and volumetric biogas production rates of 0.313 m^3/ （m^3·d） . These results could provide reference to engineering application of anaerobic co-digestion from dairy manure and straw.

关 键 词：牛粪 水稻秸秆 厌氧共发酵 接种量 温度 固体含量 

分 类 号：S216.4[农业科学—农业机械化工程] X712[农业科学—农业工程]