大型填埋场覆膜收集恶臭气体变化规律研究  

Change Rule of Odorous Gases Coated Collected in Large-scale Landfill Site

作　　者：邰俊[1,2] 羌宁[3] 袁文祥 

机构地区：[1]上海市环境工程设计科学研究院有限公司,上海200232 [2]华东师范大学,上海200062 [3]同济大学,上海200092

出　　处：《环境卫生工程》2015年第6期47-51,共5页Environmental Sanitation Engineering

基　　金：上海市启明星人才计划资助项目(12QB1403900)

摘　　要：针对填埋场作业面夜间覆膜后,恶臭气体在膜下不断集聚并在第2日作业启动时集中释放产生的恶臭气体污染扩散问题,对膜下恶臭气体进行收集并进行现场监测,采用三点比较式臭袋法和电子鼻法相结合的方法采样并分析臭气浓度,分析了填埋场恶臭浓度春季1、春季2、夏季1以及夏季2的变化规律。结果表明:膜下垃圾的恶臭散发量随天气温度的升高而降低;覆膜10 h后膜下垃圾的各恶臭物质浓度均高于覆膜3 h内膜下恶臭浓度值。春季时,1.28 m^3/(m^2·h)的排气率可基本保持排气中污染物的浓度不上升;夏季情况下,1.2 m^3/(m^2·h)的排气量可以保持排气中污染物的浓度基本不变。恶臭气体具有新鲜垃圾恶臭排放特征以及填埋气体特征。For coated landfill operationat night, the stench gas under the membrane concentrated, and the stench gas released to cause pollution diffusion of stench gas on the second day. In order to collect and field monitor stench gas under the membrane, the integrated method with triangle odor bag method and E-nose method was to used to sample and analyze the gas concentration. The change rule of landfill stench concentration was analyzed in spring 1, spring 2,summer 1 ,and summer 2. The results show that the foul-smelling quantity decreased with the temperature increasing, the concentration of foul-smelling sub- stances after coated membrane10 hours are higher than that coated membrane after 3 hours. In spring, the exhaust rate at 1.28 m3/ （m2＂h） can maintain the concentration of exhaust pollutants to not rise. In summer, the exhaust rate at 1.2 m3/ （m2.h） can keep the concentration of exhaust pollutants to basically remain unchanged. Odorous gases have the characteristics of stink emis- sion from fresh waste and landfill gas.

关 键 词：填埋场 臭气 覆膜收集 变化规律 

分 类 号：X512[环境科学与工程—环境工程] X799.3