尾菜厌氧发酵酸化处理条件的优化  

Optimization of Hydrolytic Acidification Conditions for Anaerobic Digestion of Vegetable Waste

作　　者：魏程程[1] 王英琪 杨宏志[1] Wei Chengcheng;Wang Yingqi;Yang Hongzhi(College of Food Science,Heilongjiang Bayi Agricultural University,Daqing 163319)

机构地区：[1]黑龙江八一农垦大学食品学院

出　　处：《黑龙江八一农垦大学学报》2019年第6期58-65,共8页journal of heilongjiang bayi agricultural university

基　　金：“十三五”国家重点研发项目“农业废弃物厌氧发酵及资源成套技术与设备研发”子课题“农业废弃物混合原料预处理技术研发”(2017YFD0800802-03)

摘　　要：以尾菜为底物,为研究尾菜厌氧发酵酸化处理最优条件,在单因素的基础上,利于响应面法分析尾菜破碎大小、料液浓度、酸化处理时间和氧化钙添加量对甲烷产率的影响。结果表明,在35℃条件下,各影响因子对甲烷产率的影响顺序为:酸化时间>破碎大小>料液浓度>氧化钙添加量,酸化最佳处理条件为:破碎大小为(5±1)cm,料液浓度为1.52%,酸化时间为(103±1)h,氧化钙添加量为4 g·L^-1。累积甲烷产率可照对照组提高的43.85%以上。该研究对尾菜两相厌氧发酵中试试验提供参考。Vegetable waste was used as a substrate to study the optimal conditions for anaerobic digestion acidification of vegetable waste. On the basis of single factor,it was helpful to analyze the effect of vegetable waste crushing size,feed liquid concentration,acidification treatment time and calcium oxide addition on methane yield. At 35 ℃,the results showed that the order of influence of each impact factor on methane yield was: Acidizing time>crushing size>feeding liquid concentration>calcium oxide addition amount.The optimal treatment conditions for hydrolytic acidification were: the crushing size was(5 ±1) cm,the concentration of the feed liquid was 1.52%,the acidification time was(103±1)h,and the amount of calcium oxide added was 4 g·L^-1. The cumulative methane yield increased by more than 43.85% in the control group. It provided a reference for the pilot test of two-phase anaerobic fermentation of vegetable waste.

关 键 词：尾菜 厌氧发酵 酸化处理 甲烷产率 响应面法 

分 类 号：X712[环境科学与工程—环境工程] X172