中文摘要：

为提高垃圾填埋场CH4收集系统的收集效率，减少CH4的排放，对广州某生活垃圾填埋场CH。收集效率和填埋堆体表面CH。释放速率进行了研究．研究表明：采用US-EPA-级动力学模型计算出2010年该填埋场理论CH。产量为7．22×10^7m^3，估算实际产量为（2．17-2．89）×10^7m^3，实际收集量为1．75×10^7m^3，实际收集量占估算实际产量的60．6％-80．6％．填埋作业面是填埋场主要的CH4排放源，年排放量为0．175×10^7m^3，占实际收集量的10．0％．其中，陈垃圾作业面和新填垃圾作业面CH4的释放速率分别为4．17mol·m^-2h^-1和0．29mol·m^-2h^-1．

英文摘要：

The collection efficiency and the emission rate of methane in a municipal solid waste landfill in Guangzhou were studied for improving the collection efficiency and reducing the emission of methane. The theoretical methane emission of 7.22 ×10^7m^3 were estimated by the US-EPA first order kinetics model, which corresponded to （2. 17 - 2.89）×10^7m^3 of actual methane emission in 2010. In practice, 1. 75×10^7m^3 of methane was collected, with the collection efficiency ranging from 60.6% to 80.5%. The operating area was the main emission source of methane, and the emission rate of methane was 0. 175×10^7m^3. a^-1 which accounted for 10.0 percent of total methane collected. The emission rates of methane in matured and fresh refuses were 4.17 mol·m^-2h^-1 and 0.29 mol·m^-2h^-1, respectively.