SESSION H1 / / 15:30 - 17:10
IWWG Training Course: Monitoring of landfill gas emissions
Chair / Presidente: Viktoria Wechselberger and Marion Huber-Humer (AT)
On a global level, methane emissions from landfills still represent the largest direct source of greenhouse gas emissions from the solid waste sector. Diverse technologies that should mitigate LFG emissions, like gas extraction systems, methane oxidation covers or in-situ aeration measures, are therefore implemented. For a reliable assessment of the performance of these measures, and particularly for GHG counting and inventories, methods are required, that can cope with the high spatial and temporal variability of landfill gas emission fluxes.
In the trainings course current approaches to monitor and quantify methane emissions from landfill sites will be presented. A particular focus will be set on the one hand on conventional methods like chamber systems, and on the other hand on innovative approaches, such as using the open-path tunable diode laser absorption spectrometry (OP-TDLAS). This is a method to determine path-integrated gas concentrations. Based on the measured concentrations as well as meteorological data emissions from the site can be quantified via inverse dispersion modelling. The training course will be run in an interactive manner, with lots of opportunity for questions and discussion, and for specific aspects of particular interest to delegates to be covered.