Landfill

thumb|right|One of several landfills used by Dryden, Ontario, Canada

upright=1.35|thumb|A closeup of a shell midden in Santa Cruz Province, Argentina

complex mix of different gases created by the action of microorganisms within a landfill

A geomembrane is a very low permeability synthetic membrane liner or barrier used with any geotechnical engineering related material so as to control fluid (liquid or gas) migration in a human-made project, structure, or system. Geomembranes are made from relatively thin continuous polymeric sheets, but they can also be made from the impregnation of geotextiles with asphalt, elastomer or polymer sprays, or as multilayered bitumen geocomposites. Continuous polymer sheet geomembranes are, by far, the most common.

waste ignition

excavating and processing solid wastes from landfills

Analysis of waste streams