Leachate pollution management to overcome global climate change impact in Piyungan Landfill, Indonesia

International Conference on Climate Change: Challenges and Opportunity on Environment Degradation Researches

地球科学;生态环境科学

Harjito^1 ; Suntoro^1 ; Gunawan, T.^2 ; Maskuri, M.^1

Department of Environmental Science, Sebelas Maret University, Ir. Sutami street No. 36A, Kentingan, Surakarta

57126, Indonesia^1

Department of Geography, Gadjah Mada University, Sekip Utara Yogyakarta

55281, Indonesia^2

关键词: Electrical conductivity;    Environmental problems;    Global climate change impact;    Global climate changes;    Groundwater contamination;    Leachate management;    Resistivity tomography;    Waterproof materials;   

Others  :  https://iopscience.iop.org/article/10.1088/1755-1315/129/1/012005/pdf
DOI  :  10.1088/1755-1315/129/1/012005

学科分类：环境科学（综合）

来源: IOP

【 摘 要 】

Environmental problems associated with the landfill system are generated by domestic waste landfills, especially those with open dumping systems. In these systems, waste degrades and produces some gases, namely methane gas (CH4) and carbon dioxide (CO2), which can cause global climate change. This research aimed at identifying the areas that experience groundwater pollution and the spread pattern of leachate movement to the vicinity as well as to develop a leachate management model. The Electricity Resistivity Tomography (ERT) survey is deployed to assess the distribution of electrical resistivity in the polluted areas. In this study, the groundwater contamination is at a very low in the aquifer zone, i.e., 3-9 Ωm. It is caused by the downward migration of leachate to water table that raises the ion concentration of groundwater. These ions will increase the electrical conductivity (EC), i.e., up to 1,284 μmhos/cm, and decrease the electrical resistivity. The leachate spreads westward and northward at a depth of 6-17 m (aquifer) with a thickness of pollution between 4 and11 m.The recommended landfill management model involves the installation of rainwater drainage, use of cover and baseliner made of waterproof materials, and massive waste treatment.