生活垃圾填埋过程含水率变化研究  

Research of Moisture Content Variation in MSW Landfill

作　　者：李睿[1] 刘建国[1] 薛玉伟[1] 张媛媛[1] 岳东北[1] 聂永丰[1] 

机构地区：[1]清华大学环境学院,固体废物管理与环境安全教育部重点实验室,北京100084

出　　处：《环境科学》2013年第2期804-809,共6页Environmental Science

基　　金："十一五"国家科技支撑计划项目(2006BAC06B05)

摘　　要：为分析垃圾在好氧和厌氧条件下降解过程中含水率变化的规律,采用时域反射测量(time domain reflectometry,TDR)技术监测了垃圾填埋过程中含水率的变化情况.结果表明,填埋过程中垃圾体积含水率随时间逐渐增大,垃圾持水性能不断提高.好氧初期垃圾内水量变化与含水率变化正相关,好氧后期则为负相关;厌氧填埋过程中,垃圾沉降压缩是含水率变化的主要原因.垃圾TDR读数与基于物质衡算的垃圾体积含水率计算值之间有较好的相关性,好氧填埋过程两者最大偏差约为±5%,厌氧填埋过程两者最大偏差约为±2%,TDR技术适用于实际填埋工程的含水率测量.Using time domain reflectometry（TDR） technology,waste moisture content variation in aerobic and anaerobic landfill of MSW was monitored,in order to study its disciplinarian.The results showed that volume moisture content of waste increased with landfill time and water holding capacity of waste improved continuously.The correlation of water quantity and moisture content was positive in early aerobic landfill,but it became negative later.In anaerobic landfill,moisture content variation was caused by settlement and compression of MSW.TDR readings and waste material-based volume moisture content had a good correlation.The maximum error between them is about±5% in aerobic landfill and±2% in anaerobic landfill.TDR technology is applicable to measure moisture content in practical landfill engineering.

关 键 词：生活垃圾 好氧填埋 厌氧填埋 体积含水率 时域反射 

分 类 号：X705[环境科学与工程—环境工程]