厨余垃圾中高温高效厌氧产沼中试研究  

A Pilot Study on Efficient Anaerobic Biogas Production of Kitchen Waste Under Intermediate Temperature

作　　者：田启欢 高彦达 宫亚斌 杜睿 王立伦 姚建刚[1] TIAN Qihuan;GAO Yanda;GONG Yabin;DU Rui;WANG Lilun;YAO Jiangang(Hangzhou Energy&Environmental Engineering Co.Ltd.,Hangzhou Zhejiang 311106;WELLE Environmental Group Co.Ltd.,Changzhou Jiangsu 213125)

机构地区：[1]杭州能源环境工程有限公司,浙江杭州311106 [2]维尔利环保科技集团股份有限公司,江苏常州213125

出　　处：《环境卫生工程》2024年第2期39-45,共7页Environmental Sanitation Engineering

基　　金：浙江省“尖兵”研发攻关计划项目(2022C03001)。

摘　　要：针对厨余垃圾资源化和能源化过程中存在的问题,通过中温(38℃)和中高温(44℃)连续厌氧发酵试验,分析不同温度发酵体系的产气特性、过程参数、微生物菌落结构及组成情况。结果表明:在相同进料负荷条件下,相比中温试验组,中高温试验组具有较高的容积产气率、甲烷产气率等产气特性,且具有较高的底物VS降解率。中高温发酵系统在VFAs、氨氮、总碱度、pH等过程参数分析中更稳定,具有一定的抵抗负荷冲击能力。高通量微生物群落多样性探究中,中高温发酵表现为细菌中菌种相对丰富度多元化,古细菌中产甲烷菌属优势明显,表明中高温厌氧发酵系统中微生物菌落间相互促进和配合,促进了厌氧发酵过程中各物料参数的稳定有序转化,保证了厌氧系统的稳定高效运行。In view of the problems existed in the process of resource utilization and energy utilization of kitchen waste,continuous anaerobic fermentation experiments were conducted at medium temperatures(38℃)and intermediate temperatures(44℃)to analyze the gas production characteristics,process parameters,microbial colony structure and composition of different temperature fermentation systems.The results showed that under the same organic load,compared to medium temperatures experimental group,the intermediate temperatures experimental group had biogas production characteristics such as higher volumetric biogas production rate and methane production rate.And it had a high degradation rate of VS.The intermediate temperatures fermentation system was more stable in the analysis of process parameters such as VFAs,ammonia nitrogen,total alkalinity,pH,etc,and it had a certain resistance to load impact.In the exploration of high throughput microbial community diversity,intermediate temperatures fermentation was characterized by a relatively abundance diversity of bacterial species,and archaea had obvious superiority in producing methane,which indicated that during the anaerobic fermentation process,the mutual promotion and coordination between microbial colonies in the intermediate temperatures anaerobic fermentation system promoted the stable and orderly transformation of various material parameters,and guaranteed the stable and efficient operation of the anaerobic system.

关 键 词：厨余垃圾 厌氧发酵 中高温 中温 微生物群落 

分 类 号：X799.3[环境科学与工程—环境工程]