摘要
牛粪作为秸秆类原料经过反刍动物瘤胃消化后的产物,是生物腐植酸的发酵原料之一。该研究对3种牛粪干发酵过程中腐植酸的变化趋势及红外光谱特征进行了分析,结果表明:在为期90天的批次厌氧干发酵过程中,3种牛粪(奶牛粪、水牛粪、黄牛粪)中腐植酸的含量均有所增加,且木质素含量和腐植酸含量变化趋势相似。研究结果为后续深入开展牛粪干发酵过程中腐植酸形成机理及积累过程奠定了一定基础,进而为农业废弃物的资源化利用提供理论参考。
As digested product from rumen of a ruminant, cow dung is one of raw materials to produce bio-humic acids. This article primarily studied the variation trend of humic acid in dry anaerobic digestion of cow ＆mS and its characteristics under infrared spectrum. The results shoved that the content of humic acid for all three kinds of cow dung increased after fermentation, and the content variation trend of lignin and humic acid were similar. These results settled the base for thefurther study on the formation mechanism of humic acid and its accumulation process.
出处
《中国沼气》
北大核心
2014年第5期7-11,16,共6页
China Biogas
基金
基于氨纤维爆破预处理的秸秆醇气联产关键技术研究(2014HH0018)
关键词
牛粪
干发酵
木质素
腐植酸
cow dung
dry anaerobic digestion
lignin
humic acid
