【作者】 常国璋； 席新明； 郭康权； 杨秀生；

【Author】 CHANG Guozhang1,XI Xinming1,GUO Kangquan1,2,Yang Xiusheng2,3(1 College of Mechanical and Electronic Engineering,Northwest A&F University,Yangling 712100,China;2 Yangling International Academy of Modern Agriculture,Yangling 712100,China;3 College of Agriculture and Natural Resources,University of Connecticut,Connecticut,America)

【机构】 西北农林科技大学机械与电子工程学院； 杨凌现代农业国际研究院； 康涅狄格大学农业与自然资源学院；

【摘要】 为研究不同原料配比对餐饮废弃物高温厌氧发酵的影响,根据对杨凌区餐饮废弃物有机组分的检测结果,模拟等质量餐饮废弃物不同水平配比的处理组合,在高温(55℃)条件下,采用农业部西北沼气分中心自行设计的厌氧发酵装置,考察了全部处理组的产气量、产气率和甲烷含量变化规律。结果表明:不同处理组间的产气特性差异明显。发酵启动阶段第6组产气量最高,累计产气5410mL,第11组最低,累计产气3150mL;第3组甲烷含量最高,为16.7%,第29组最低,为1.3%。整个发酵过程第10组的总产气量、产气率和稳定产气阶段甲烷含量最高,分别为8400mL、140.94mL/gTS和49.9%,相应最低值分别为4415mL(第11组)、90.37mL/gTS(第14组)和0%(8个停止产气组)。因此,合理调控发酵原料的初始配比,可以实现对餐饮废弃物资源的最大化利用。更多还原

【Abstract】 To achieve more efficiency of food waste’s utilization,the organic ingredients of food waste in Yangling were tested to determine factors and levels of the experiments.The experiments were carried out at 55℃ and conducted in self-manufactured anaerobic equipment.The total biogas production,biogas production rate and CH4 content were tested.The results show that characteristics of biogas production in different groups are significant.In the 1～3 days of the anaerobic digestion,the accumulative biogas production of group 6 was highest(5 410mL)and group 11 was lowest(3 150mL).The CH4 content of group 3 was highest(16.7%)and the group 29 was lowest(1.3%).In all days of the anaerobic digestion,the total biogas production,biogas production rate and CH4 content of group 10(8 400 mL,140.94 mL/gTS,49.9%)were the maximum,while the minimum were 4 415 mL(group 11),90.37 mL/gTS(group 14),0%(eight groups of none biogas production).This study provided a good reference for the optimum utilization of food waste.更多还原