厨余垃圾含固率对干式厌氧发酵工艺在实际工程应用中的影响及控制  

Influence and Control of Solid Content of Kitchen Waste on Dry Anaerobic Fermentation Process in Practical Engineering Application

作　　者：吴靖宇 张爱军 杨吉祥 李保光 戴小东 WU Jingyu;ZHANG Aijun;YANG Jixiang;LI Baoguang;DAI Xiaodong(Beijing Capital environmental Technology Co Ltd,Beijing 100037,China)

机构地区：[1]北京首创环境科技有限公司,北京100037

出　　处：《中国沼气》2024年第1期70-74,共5页China Biogas

摘　　要：随着垃圾分类政策在全国各城市开始实施,厌氧发酵处理逐渐成为厨余垃圾处理的主流工艺投入使用。主要介绍了干式厌氧发酵工艺在厨余垃圾处理工程实践中的设计参数和运行情况。近2年的实际运行结果表明,干式厌氧发酵系统在高有机负荷、高含固率物料下可以稳定运行,VS降解率、产气率等运行指标都能达到设计水平,但是干式厌氧发酵系统对于原料的含固率和VS都有相应要求。通过对运行数据的整理分析,经过物料衡算建立了物料平衡方程,计算出了干式厌氧发酵系统处理厨余垃圾的污泥产率,为项目的稳定运行和今后同类型项目的设计提供了理论设计依据和工程实践参考。With the implementation of waste classification policies in cities across the country,anaerobic fermentation processing has gradually become the mainstream process for kitchen waste treatment.This paper describes the design parameters and operation conditions of dry anaerobic fermentation process in the engineering practice of kitchen waste treatment.The actual operation results of the past two years indicate that the dry anaerobic system can operate stably in materials with high organic load and high solid content,the operating indicators such as VS degradation rate and gas production rate can reach the design level.However,the dry anaerobic system has corresponding requirements for the TS and VS of raw materials.Through sorting out and analyzing the operation data,the material balance equation is established through material balance calculation,and the sludge yield of dry anaerobic system for kitchen waste treatment is calculated,which provides theoretical design basis and engineering practice reference for the stable operation of the project and the design of similar projects in the future.

关 键 词：厨余垃圾 干式厌氧发酵系统 含固率 污泥产率 VS降解率 

分 类 号：X703[环境科学与工程—环境工程] X933.2