Application of Ground-penetrating Radar and High-density Electrical Method in Solid Waste Landfill Management
In the process of urban development,because of the nearsightedness of local au-thorities,many landfill sites have been improperly located,and some old landfill sites have encountered difficulties in dealing with pollution due to the serious lack of relevant informa-tion.High-density resistivity method and ground-penetrating radar method are important ge-ophysical methods to investigate the burial depth and distribution of subsurface media.In or-der to solve the problem of pollutant treatment in old landfill sites,a combination of the two was used at the old landfill in a village to explore all aspects of the landfill,and the following results were obtained:1)The boundary between the waste and the in-situ soil layer was suc-cessfully identified,the extent and thickness of the waste layer were obtained,and based on this,the backfill volume of the waste was calculated to be 132 454 m3,which provided an important reference for the removal and treatment of pollutants;2)the type of landfill mate-rial was classified into construction waste,domestic waste or feces based on the resistivity distribution;3)Identifying the pollution range of landfill leachate and delineating the loca-tion are achieved where pollution and clean soil need to be isolated.The results of this study provide important references for future waste management work.
high-density electrical methodground-penetrating radar methodlandfill sitepollutant control