导电材料对厨余垃圾两相厌氧消化性能的影响  

Effects of adding conductive materials on the performance during two-phase anaerobic digestion of food waste

作　　者：姜妍希 王欣姿 王喜彤 李秀金[1] Jiang Yanxi;Wang Xinzi;Wang Xitong;Li Xiujin(State Key Laboratory of Chemical Resource Engineering,Department of Environmental Science and Engineering,Beijing University of Chemical Technology,Beijing 100029,China)

机构地区：[1]北京化工大学、化工资源有效利用国家重点实验室、环境科学与工程系,北京100029

出　　处：《可再生能源》2024年第12期1563-1569,共7页Renewable Energy Resources

基　　金：“十三五”国家重点研发计划项目(2018YFC1900903)。

摘　　要：文章选取3种典型外源投加物零价铁(ZVI)、活性炭(AC)和磁铁矿(Mt),在中温条件下研究其对厨余垃圾两相厌氧消化体系性能的影响。研究结果表明:在酸化相中投加ZVI,在甲烷相中投加AC和Mt,对厌氧消化体系性能具有最佳的影响效果;在酸化相中投加ZVI后,总挥发性脂肪酸含量较对照组提高了46.4%~47.9%,为体系的产甲烷阶段提供了更好的初始条件,明显缩短了产甲烷延滞时间;在厌氧消化体系中投加AC和Mt可以提高系统的产甲烷性能,相比对照组,各试验组的累积产甲烷量提高了28.1%~68.4%;AC和Mt对厌氧消化的促进作用主要发挥在产甲烷阶段。This research investigated the effects of adding zero-valent iron(ZVI),activated carbon(AC)and magnetite(Mt)on the performance and microbiological properties of two-phase anaerobic digestion of food waste.The results indicated that the addition of ZVI in the acidogenic reactor with AC and Mt in the methanogenic reactor showed the best effect on the anaerobic digestion performance.In the acidogenic reactor,the addition of ZVI increased the total volatile fatty acid concentration by 46.4%~47.9%compared with the control group,which provided better initial condition for the methanogenic reactor and significantly shortened the retardation time.In the methanogenic reactor,the addition of AC and Mt improved the stability of system,and the cumulative methane production was increased by 28.1%~68.4%compared with the control group.

关 键 词：厨余垃圾 厌氧消化 零价铁 活性炭 磁铁矿 

分 类 号：TK6[动力工程及工程热物理—生物能]