Timo Heimovaara (TU Delft) presented some research done to check that long term emission behavior will no longer be a problem and to check that easily obtainable data can be used with regard to leachate, settlement and landfill gas. It should be taken into account that in a landfill are often plastic layers or other barriers that inhibit the normal vertical flow of water. Therefor a landfill will react differently from soil, requiring new models to work with. To measure inside the waste body geophysical and other measurements were undertaken among which electrical resistivity tomography (ERT, differences in water content), distributed temperature sensing ((DTS, differences in temperature) and tracer experiments (concentrations in time and space). These techniques are being used at the pilot Braambergen and will provide valuable information with regard to long term emission and behavior of leachate, settlement and landfill gas.
