不同沼液回流比对玉米秸秆厌氧发酵产气效果的影响探究  

Effects of different biogas slurry reflux ratio on gas production of corn straw on anaerobic fermentation

作　　者：王欣[1] 周闯[1] 秦国辉[1] 刘伟[1] WANG Xin;ZHOU Chuang;QIN Guo-hui;LIU Wei(Energy and Environmental Research Institute of Heilongjiang Province,Harbin 150009,China)

机构地区：[1]黑龙江省能源环境研究院

出　　处：《黑龙江科学》2019年第16期22-25,共4页Heilongjiang Science

摘　　要：采用沼液回流工艺,研究不同沼液回流比条件下玉米秸秆厌氧发酵的日产气量、CH4、H2S、pH值及TOC含量变化。结果表明:75%沼液回流比试验组日产气量最大,其最大值可达1275mL,甲烷含量高,最高值可达68.4%,TOC去除效率显著,所以,75%的沼液回流比是最优的。This paper choose the biogas slurry reflow process,research different biogas slurry reflux ratio of corn straw anaerobic fermentation under the condition of nissan gas,CH 4,H 2S,pH value and the TOC content changes,the results showed that the test group of biogas slurry reflux ratio of 75% is the largest,and the maximum value of up to 1 275 mL,and also the content methane is high,and the highest can be amount to 68.4%,the efficiency of removing TOC is significant.Therefore,biogas slurry reflux ratio of 75% is optimal.

关 键 词：沼液回流比 玉米秸秆 厌氧发酵 产气效果 

分 类 号：S216.4[农业科学—农业机械化工程]