野菠菜厌氧发酵产气潜力  

Potential of the Biogas Fermentation of Rumex L.

作　　者：邵艳秋[1,2] 邱凌[2,3] 

机构地区：[1]西北农林科技大学资源环境学院,陕西杨凌712100 [2]农业部沼气西北分中心,陕西杨凌712100 [3]西北农林科技大学农学院,陕西杨凌712100

出　　处：《西北农业学报》2011年第1期190-193,共4页Acta Agriculturae Boreali-occidentalis Sinica

基　　金：国家科技支撑计划"沼气工程优化与标准化模式研究"(2007BAK31B01);国家农村沼气科技支撑体系试点项目"西北地区农村沼气科技创新与示范基地建设"(农计函2010-120);西北农林科技大学推广专家支持计划项目"杨凌农村沼气与循环农业科技示范基地"(2007-4)

摘　　要：利用自行设计的厌氧发酵试验装置,在(30±1)℃恒温条件下,对发酵料液中不同物料质量分数(4%、6%和8%)的野菠菜进行单相批量厌氧发酵试验研究。结果表明,3种不同处理下产气都有2个高峰,6%处理发酵持续时间比其他2个处理长。4%、6%和8%的处理累计产气量分别为10 544.0、15 870.5、13 019.5 mL,平均日产气量为234.3、352.7和289.3 mL/d。在发酵过程中3个处理下pH都显示出先下降再上升的趋势。随着发酵时间的延长,所产气体中的CH4含量呈明显升高的趋势,3个处理的甲烷体积分数在第8天达到40%以上,平均甲烷体积分数均在40%以上,峰值在50%以上。Using self-designed anaerobic fermentation experimental device,under（30±1）℃ constant temperature condition,the Rumex L.of different raw material concentration was studied under the single-phase anaerobic fermentation batch.The results showed that the three kinds of raw materials concentration all had two peaks of gas production,the duration of producing gas under the raw material concentration of 6% was longer than the others.The cumulative gas production under three kinds of raw materials concentration was 10 544.0,15 870.5 and 13 019.5 mL respectively,and the average daily production of them was 234.3,352.7 and 289.3 mL/d,respectively.During the fermentation process,pH value decreased firstly then went up.With the extension of fermentation time,the CH4 concentration of gas increased significantly,and all them of three kinds of materials was more than 40%.In addition,the average CH4 concentration of all three treatments were more than 40% and peaked at more than 50%.

关 键 词：野菠菜 物料质量分数 厌氧发酵 

分 类 号：S216.4[农业科学—农业机械化工程]