摘要
分别在中温和高温条件下对厨余垃圾与餐厨垃圾混合干式厌氧发酵产甲烷特性进行研究,结果表明:55℃高温发酵累积产气量均高于35℃中温组;高温组厨余垃圾与餐厨垃圾配比为1∶5时发酵累积产气量最大,最大累积产气量达到2492.5 mL,是中温组协同产甲烷的1.4倍。同时,为提高产气率,考察了不同种类活性炭对厌氧发酵的影响,采用甘蔗皮、秸秆、花生藤蔓以及发酵沼渣为原料自制了4种生物质活性炭。实验结果表明,4种活性炭均呈蜂窝煤状的炭孔,其中甘蔗皮活性炭表面炭孔相对规则、完整,微生物可附着面积大,更有利于加快产气进程。添加甘蔗皮活性炭时累积产气3410 mL,相比空白对照组增长20.1%。
The dry anaerobic fermentation performance of kitchen waste and food waste to produce methane characteristics under mesophilic(35℃)and thermophilic(55℃)condition were studied respectively.The results showed that the cumulative gas production in the thermophilic fermentation were higher than that in 35℃temperature groups.When the ratio of kitchen waste and food waste was 1∶5 in the high temperature group,the cumulative gas production reached the highest level.The maximum cumulative gas production was 2492.5 mL,which was 1.4 times of the production of methane in the medium temperature group.In order to increase the yield of biogas,4 kinds of activated carbon,such as sugarcane rind,straw,peanut vine and biogas residue,were prepared and the effects of different kinds of activated carbon on anaerobic fermentation were investigated.The experimental results showed that the 4 kinds of activated carbon had honeycomb shaped holes,especially the activated carbon produced from sugarcane rind had relatively higher regular and complete holes,which could provide larger area for microbes and improve the process of gas producing.When sugarcane rind activated carbon was added in the system,the cumulative gas production could reach 3410 mL,20.1%higher than that of blank group.
作者
李彤
王攀
陈锡腾
赵泽熙
马丽娟
任连海
LI Tong;WANG Pan;CHEN Xi-teng;ZHAO Ze-xi;MA Li-juan;REN Lian-hai(State Environmental Protection Key Laboratory of Food Chain Pollution Control,School of Ecology and Environment,Beijing Technology and Business University,Beijing 100048,China)
出处
《环境工程》
CAS
CSCD
北大核心
2020年第9期213-218,共6页
Environmental Engineering
基金
国家重点研发计划“固废资源化”重点专项(2019YFC1906303)
“十三五”时期北京市属高校高水平教师队伍建设支持计划(CIT&TCD201804016)
国家自然科学基金(51578008)
北京市“大学生科研与创业行动计划”(201810011083)。
关键词
厨余垃圾
餐厨垃圾
干式厌氧发酵
甲烷
生物质活性炭
kitchen waste
food waste
dry anaerobic fermentation
methane
biomass activated carbon
作者简介
第一作者:李彤(1996-),本科生,主要研究方向为有机固体废弃物资源化利用。15201528761@163.com;通信作者:王攀(1983-),女,博士,副教授,从事有机固体废弃物资源化利用研究。wangpan@th.btbu.edu.cn。
