稻秆NaOH预处理及厌氧发酵产沼气的试验研究  

Study on Rice Straw Pretreatment with NaOH and Biogas Production from Anaerobic Fermentation

作　　者：孙辰[1] 刘荣厚[1] 

机构地区：[1]上海交通大学农业与生物学院生物质能工程研究中心,上海200240

出　　处：《农机化研究》2010年第4期127-129,共3页Journal of Agricultural Mechanization Research

基　　金：上海市重大科技攻关项目(08DZ1900405)

摘　　要：为了改善稻草沼气发酵的效果,采用6%的NaOH对稻草进行了化学预处理,比较了经过NaOH预处理和不经NaOH预处理的稻草在沼气发酵过程中厌氧消化效率、产气量和COD去除率情况。结果表明,与不经NaOH预处理相比,6%NaOH预处理后的稻草高温厌氧发酵最大日产气量提高61.34%,总产气量提高55.23%,COD去除率提高48.72%。这说明,采用6%NaOH化学预处理可以提高稻草的厌氧消化效率和产气量。The objective of this research was to compare biogas production and COD removal between rice straw pretreated with 6% NaOH and rice straw with non - pretreatment during thermophilic anaerobic fermentation. Result showed that the max daily gas production, total gas production and COD removal of pretreated rice straw were 61. 340/0 , 55.23% and 48.72% higher than the unpretreated. Therefore, 6% NaOH pretreatment contributed to anaerobic digestion efficiency and biogas production.

关 键 词：稻草秸秆 沼气发酵 化学预处理 高温消化 

分 类 号：S216.4[农业科学—农业机械化工程]