高温厌氧消化技术处理餐厨废弃物的工程应用  

Applied Case Study of Thermophilic Anaerobic Digestion Technology in the Kitchen Waste Treatment Industry

作　　者：易志刚 席北斗[2] 彭星 李盼宋 杨天学[2] 谢璨 张博武 杨津津[2] YI Zhi-gang;XI Bei-dou;PENG Xing;LI Pan-song;YANG Tian-xue;XIE Can;ZHANG Bo-wu;YANG Jin-jin(Hunan Renhe Environmental Co.,Ltd.,Changsha 410005;Chinese Research Academy of Environmental Sciences,Beijing 100012,China)

机构地区：[1]湖南仁和环境股份有限公司,长沙410005 [2]中国环境科学研究院,北京100012

出　　处：《中国环保产业》2023年第10期44-47,共4页China Environmental Protection Industry

摘　　要：高温厌氧消化产沼技术是餐厨废弃物处理行业中有效的能源化利用方式,但其实际应用案例相对较少,本文通过研究某餐厨废弃物无害化处理项目高温厌氧消化产沼技术发现:(1)在进料负荷总体波动比较大的情况下(90 000—114 230mg/L),系统仍能维持稳定运行,证明高温厌氧系统具有较强的抗冲击负荷能力;(2)本项目的沼气平均产气量为40 038.77Nm^(3)/d,沼气中甲烷含量为55%—60%,单位物料平均产气率为82.60Nm^(3)/(m^(3)·d),系统单位产气率高;(3)系统稳定,不存在很大的pH值波动,不会出现酸或氨抑制的现象,酸碱度能保持相对平衡。本研究以期为高温厌氧消化餐厨废弃物项目的后续实际应用提供借鉴与参考。Thermophilic anaerobic digestion is an effective resource utilization technology in the kitchen waste treatment industry.But its application cases are relatively few.This paper researches on the technology of thermophilic anaerobic digestion biogas production in the kitchen waste harmlessness projection.The results are:(1)Under the condition that the overall fuctuation of the feed load is relatively large(90000-114230mg/L),the system can operate stably,which proves that the high-temperature anaerobic system has strong impact load resistance;(2)The average production of biogas in this project is 40038.77Nm^(3)/d,the methane content is 55%-60%,the average gas production rate is 82.60Nm^(3)(m^(3)·d)by per unit material.So the unit gas production rate of the system is high;(3)The system is stable.There is no large pH fluctuations and inhibiting acid or ammonia,so the pH can maintain balance relatively.The results can provide reference for the application of the thermophilic anaerobic digestion project of kitchen waste.

关 键 词：餐厨废弃物 高温厌氧消化 高负荷 高产气率 系统稳定 

分 类 号：X799.3[环境科学与工程—环境工程]