doiSerbia

Impermeable layers in landfill design

Karanac Milica (Innovation Center Faculty of Technology and Metallurgy, Belgrade)
Jovanović Mića (Faculty of Technology and Metallurgy, Belgrade)
Timmermans Eugène (Trisoplast Mineral Liners International BV, The Netherlands)
Mulleneers Huib (Trisoplast Mineral Liners International BV, The Netherlands)
Mihajlović Marina (Innovation Center Faculty of Technology and Metallurgy, Belgrade)
Jovanović Jovan (Innovation Center Faculty of Technology and Metallurgy, Belgrade)

Landfills are complex systems which could potentially contaminate the environment. It should be prevented by providing impermeability during the landfill design. In that aim related regulations should be followed and adequate materials that provide impermeability should be used. The first part of the paper presents review of the current regulations, interpretations, and recommendations from U.S., EU and Republic of Serbia. Knowing that the Serbian regulation should fully follow related European Directive, in analyses some inadequate formulations and terms were observed related to the Directive Annex I, 3.2. Request of the Regulation that deals with the bottom of the landfill leakage is formulated differently than in Directive as well. Mentioned problems enable some design solutions which are not among the best available techniques. In the second part the paper presents comparative analysis of possible alternatives in impermeable layer design, both for the bottom and landfill cover. Some materials like clay, CCL, GCL might not be able to satisfy prescribed requirements. The longest lifetime and the lowest coefficient of permeability, as well as excellent mechanical, chemical and thermal stability, show the mixture of sand, bentonite and polymers (PEBSM).

Keywords: landfill design, landfill impermeability, artificial geological barrier

Projekat Ministarstva nauke Republike Srbije, br. TR 34009