作　　者： ; ; ; ;

机构地区： 西南交通大学环境科学与工程学院

出　　处： 《安徽农业科学》 2009年第23期11151-11153,共3页

摘　　要： 采用静态箱法对某填埋场的甲烷释放速率进行了研究。研究表明,填埋时间对填埋垃圾的产甲烷速率具有明显影响,垃圾填埋后2年左右甲烷释放速率达最大值,而后甲烷释放速率又开始下降;由于季节温度变化的影响,夏季填埋场的甲烷释放速率明显高于春季;一天内甲烷释放速率变化较大,上午11:00左右甲烷释放速率达到最大,下午逐渐下降,夜间至凌晨甲烷释放速率最低;由于降雨导致温度下降和覆土层含水率增加,填埋场甲烷释放速率明显下降。 The methane release rate of a landfill was studied by using the static chamber technique. The results showed that the time of landfill obviously impacted the methane release rate of the waste, which reached the peak 2 years after the garbage has been filled, then began to decline. Due to the impact of the seasonal changes in temperature, the methane release rate in summer was obviously higher than that in spring. Furthermore, the methane release rate also changed greatly during a day, reaching the peak around 11, declining gradually in the afternoon and reaching the minimum during the midnight to the early morning. Otherwise, because of the temperature dropping and the moisture increasing in soil after the rain, the methane release rate was greatly decreased.

关 键 词： 垃圾填埋场 静态箱法 甲烷释放速率

领　　域： [环境科学与工程]