Landifill gas emissions at a semi-arid landfill

摘要

Two semi-arid landiflls were investigated for landfill gas emissions. Several methods were used to characterize the gas emissions: a filame ionization ddetector, a filux chamber, shallow gas wells, and the U.S. EPA landfill gas model. The results of the landfill gas investigation showed high spatial variations over the surface of the landfill with emissions being concentrated at the slopes. Overall the emissions proved to be in the low to medium range of literature values for total gas eneration and VOC content.