生物预处理对规模化车库式干发酵的影响  

Effects of Biological Pretreatment on Dry Anaerobic Fermentation in Garage-type Digester

作　　者：曲浩丽[1] 朱德文[1] 杜静 李瑞容[1] 陈明江[1] 吴爱兵[1] 陈永生[1] 

机构地区：[1]农业部南京农业机械化研究所,江苏南京210014 [2]江苏省农业废弃物资源化工程技术研究中心,江苏南京210014

出　　处：《中国沼气》2013年第6期13-16,共4页China Biogas

基　　金：江苏省科技支撑计划(BE2012775);江苏省科技支撑计划(BE2010353)

摘　　要：以稻秸作为主要原料,采用规模化车库式干法发酵装置进行中试对比实验。通过对物料变化、产气量、沼气成分和VS降解率比较分析,研究了中试实验中生物预处理对秸秆干发酵的影响。结果表明在沼气干发酵中试实验中,添加预处理菌剂能显著稳定的提高沼气日产气量21.47%及产气总量22.42%,同时能提高发酵原料中挥发性有机物(VS)的降解率。添加生物菌剂的预处理方法在厌氧干发酵产气稳定后的第二阶段(20天后)能提高沼气中的CH4含量,降低CO2的含量。With rice straw as the main raw material, experiment were carried out adopting the scale garage-type anaerobic digester to study the effect of biopretreatment on straw dry fermentation through the comparison analysis of material changes, biogas yields, biogas composition, and the VS degradation rate. The results showed that straws pretreated with bacterium agents could stablely increase the daily biogas production by 21.47% and total gas production increased by 22.42% in this pilot experiment. And further more, it showed a higher VS degradation rate. And the methane content also increased accompanying with CO2 decrease in stable fermentation period.

关 键 词：秸秆 干发酵 复合菌剂 预处理 

分 类 号：X71[环境科学与工程—环境工程] S216.4[农业科学—农业机械化工程]