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Title: Compositional Variations In Landfill Gas
Author: R. Eric Zimmerman
Source: American Gas Association 1987
Year Published: 1987
Abstract: Methane produced during anaerobic decomposition of urban refuse in sanitary landfills is an immediately available alternative fuel. Landfill gas, which is predominantly composed of methane (50-60 percent) and carbon dioxide (40-50 percent), contains 1-2 percent of organic and inorganic constituents that are of potential operational and environmental significance. The gas collected from a landfill represents many of the constituents within that landfill. At least 350 trace components have been identified positively in landfill gas at the part-per-billion or greater level. The sources and magnitudes of variation in the composition of landfill gas are discussed in this paper. The emphasis is on the minor constituents of the gas, which have been found to show large variations between sites. The importance of these landfill gas constituents to both the transmitter and end user is reviewed. Potential acceptance criteria are discussed.

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