农机化研究Issue(8)：208-211,216,5.
干物质浓度对牛粪秸秆厌氧发酵产沼气的影响
Effect of Different Dry Matter Concentration on Dry Anaerobic Fermentation of Animal Manure and Straw
摘要
Abstract
In this paper anaerobic digestion of dairy manure and straw was conducted to produce biogas .Under the con-ditions of C/N=25-30 and T=36℃, five kinds of dry matter concentration of 20%, 15%, 10%, 5%and 2 .5%were tested to investigate the effect of dry matter concentration on anaerobic digestion .The result showed that first 30 days was the biogas production peak phase and VFA concentrations in the leachate were also high during the same period .When dry matter concentration increased , biogas production amount appeared larger fluctuation , and the concentrations of alka-linity and NH4+-N in the leachate also increased with higher organic loading rate .Among five kinds of dry matter con-centration 10% was more suitable for anaerobic digestion to produce biogas with total biogas production amount of 4710 mL after 30 days and volume biogas production rates of 0 .313 m3/m3 · d.These results could provide instructive meaning to the engineering application of dry anaerobic digestion .关键词
沼气/牛粪/秸秆/干物质/厌氧发酵Key words
biogas/dairy manure/straw/dry matter/anaerobic digestion分类
农业科技引用本文复制引用
石利军,黄淼,刘慧芬,张伟玉..干物质浓度对牛粪秸秆厌氧发酵产沼气的影响[J].农机化研究,2013,(8):208-211,216,5.基金项目
国家农业科技成果转化与推广项目（2011GB2A100003）；国家星火计划项目 （）
