生物表面活性剂烷基多苷对餐厨垃圾厌氧发酵产挥发性酸的影响  

Effect of biosurfactants alkyl polyglycosides on volatile fatty acid production from food waste anaerobic fermentation

作　　者：田源[1] 蒋家超[1] 商晓甫 李萌[1] 张威[1] TIAN Yuan JIANG Jiachao SHANG Xiaofu LI Meng ZHANG Wei(School of Environment Science and Spatial Informatics, China University of Mining ＆ Technology, Xuzhou 221116 , China)

机构地区：[1]中国矿业大学环境与测绘学院,徐州221116

出　　处：《环境工程学报》2016年第11期6680-6684,共5页Chinese Journal of Environmental Engineering

基　　金：中央高校基本科研业务费专项(2013QNA18);江苏省自然科学基金青年项目(BK20130186)

摘　　要：通过向餐厨垃圾厌氧发酵系统中投加生物类表面活性剂烷基多苷(APG)的方式,探究了APG对餐厨垃圾研究发酵生产挥发性脂肪酸的影响。结果表明,APG的最佳投放量为0.12 g·(g TSS)^(-1)(总悬浮固体),最佳挥发性脂肪酸(VFA)的产量为18.9 g·L^(-1),相应的发酵时间为6 d。机理研究表明,APG能够促进餐厨垃圾中多糖和蛋白质的释放,抑制甲烷的产生。进一步研究发现,APG自身分解会产生VFA,但VFA的产量远远小于对餐厨垃圾厌氧厌氧分解值。We investigated the effect of alkyl polyglycoside（ APG） biosurfactants on the production of volatile fatty acids（ VFA） from the anaerobic fermentation of food waste. The optimal APG dosage was determined to be 0. 12 g·（ g TSS）^（-1）,and the VFA yield was 18. 9 g·L^（-1）with a corresponding fermentation time of 6 d. A study of the underlying mechanisms revealed that APG could improve carbohydrate and protein solubilization while inhibiting the production of methane. Further investigation revealed that the decomposition of APG could lead to the generation of VFA,although rather less VFA was generated by this method than via the anaerobic fermentation of food waste.

关 键 词：餐厨垃圾 挥发性脂肪酸 烷基多苷 水解 

分 类 号：X705[环境科学与工程—环境工程]