{"title":"用探地雷达评价垃圾渗滤液对地下水的污染","authors":"N. S. Wijewardana, L. Galagedara, M. Mowjood","doi":"10.1109/ICGPR.2012.6254957","DOIUrl":null,"url":null,"abstract":"This study was conducted to identify field scale groundwater (GW) contamination by the leachate generated due to an open dump site using ground penetrating radar (GPR) and to study the GPR wave response under different contaminant levels using GprMax2D. An area of 30 m × 30 m was selected near to the Gohagoda open dump site in Kandy, Sri Lanka (7° 18'N and 80° 37'E). Ten GW monitoring wells were installed. In the GPR modeling, a model domain of 4.0 m × 3.0 m with four different layers was used. The average EC value of raw leachate, soil extraction and GW were 0.6, 0.01 and 0.09 S/m, respectively. A leachate layer with an EC value similar to GW was used in GPR modeling. Results revealed that when a leachate having an EC value of 0.09 S/m, sub-surface reflections below the GW table dissapere. The GPR technique can be used for identifying contaminated plumes in GW due to landfill leachate.","PeriodicalId":443640,"journal":{"name":"2012 14th International Conference on Ground Penetrating Radar (GPR)","volume":"32 1","pages":"0"},"PeriodicalIF":0.0000,"publicationDate":"2012-06-04","publicationTypes":"Journal Article","fieldsOfStudy":null,"isOpenAccess":false,"openAccessPdf":"","citationCount":"7","resultStr":"{\"title\":\"Assessment of groundwater contamination by landfill leachate with ground penetrating radar\",\"authors\":\"N. S. Wijewardana, L. Galagedara, M. Mowjood\",\"doi\":\"10.1109/ICGPR.2012.6254957\",\"DOIUrl\":null,\"url\":null,\"abstract\":\"This study was conducted to identify field scale groundwater (GW) contamination by the leachate generated due to an open dump site using ground penetrating radar (GPR) and to study the GPR wave response under different contaminant levels using GprMax2D. An area of 30 m × 30 m was selected near to the Gohagoda open dump site in Kandy, Sri Lanka (7° 18'N and 80° 37'E). Ten GW monitoring wells were installed. In the GPR modeling, a model domain of 4.0 m × 3.0 m with four different layers was used. The average EC value of raw leachate, soil extraction and GW were 0.6, 0.01 and 0.09 S/m, respectively. A leachate layer with an EC value similar to GW was used in GPR modeling. Results revealed that when a leachate having an EC value of 0.09 S/m, sub-surface reflections below the GW table dissapere. The GPR technique can be used for identifying contaminated plumes in GW due to landfill leachate.\",\"PeriodicalId\":443640,\"journal\":{\"name\":\"2012 14th International Conference on Ground Penetrating Radar (GPR)\",\"volume\":\"32 1\",\"pages\":\"0\"},\"PeriodicalIF\":0.0000,\"publicationDate\":\"2012-06-04\",\"publicationTypes\":\"Journal Article\",\"fieldsOfStudy\":null,\"isOpenAccess\":false,\"openAccessPdf\":\"\",\"citationCount\":\"7\",\"resultStr\":null,\"platform\":\"Semanticscholar\",\"paperid\":null,\"PeriodicalName\":\"2012 14th International Conference on Ground Penetrating Radar (GPR)\",\"FirstCategoryId\":\"1085\",\"ListUrlMain\":\"https://doi.org/10.1109/ICGPR.2012.6254957\",\"RegionNum\":0,\"RegionCategory\":null,\"ArticlePicture\":[],\"TitleCN\":null,\"AbstractTextCN\":null,\"PMCID\":null,\"EPubDate\":\"\",\"PubModel\":\"\",\"JCR\":\"\",\"JCRName\":\"\",\"Score\":null,\"Total\":0}","platform":"Semanticscholar","paperid":null,"PeriodicalName":"2012 14th International Conference on Ground Penetrating Radar (GPR)","FirstCategoryId":"1085","ListUrlMain":"https://doi.org/10.1109/ICGPR.2012.6254957","RegionNum":0,"RegionCategory":null,"ArticlePicture":[],"TitleCN":null,"AbstractTextCN":null,"PMCID":null,"EPubDate":"","PubModel":"","JCR":"","JCRName":"","Score":null,"Total":0}
引用次数: 7
摘要
本研究利用探地雷达(GPR)识别露天垃圾场产生的渗滤液对野外地下水(GW)的污染，并利用GprMax2D研究不同污染水平下的探地雷达波响应。在斯里兰卡康提Gohagoda露天垃圾场附近(7°18′n和80°37′e)选择30 m × 30 m的区域。安装了10口GW监测井。在GPR建模中，采用4.0 m × 3.0 m的4层模型域。生渗滤液、土壤萃取物和GW的平均EC值分别为0.6、0.01和0.09 S/m。在探地雷达模型中使用了EC值与GW相近的渗滤液层。结果表明，当渗滤液EC值为0.09 S/m时，GW表以下的次表面反射消失。探地雷达技术可用于识别垃圾渗滤液中污染羽状物。
Assessment of groundwater contamination by landfill leachate with ground penetrating radar
This study was conducted to identify field scale groundwater (GW) contamination by the leachate generated due to an open dump site using ground penetrating radar (GPR) and to study the GPR wave response under different contaminant levels using GprMax2D. An area of 30 m × 30 m was selected near to the Gohagoda open dump site in Kandy, Sri Lanka (7° 18'N and 80° 37'E). Ten GW monitoring wells were installed. In the GPR modeling, a model domain of 4.0 m × 3.0 m with four different layers was used. The average EC value of raw leachate, soil extraction and GW were 0.6, 0.01 and 0.09 S/m, respectively. A leachate layer with an EC value similar to GW was used in GPR modeling. Results revealed that when a leachate having an EC value of 0.09 S/m, sub-surface reflections below the GW table dissapere. The GPR technique can be used for identifying contaminated plumes in GW due to landfill leachate.
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