Municipal landfills produce methane (CH4) and carbon dioxide (CO2) gases and they need to be separated and removed for 2 reasons.  The first is the greenhouse gas reduction.  Since CO2 is a green house gas and CH4 has 20 times the greenhouse gas effect as CO2, technologies and techniques to reduce CH4 and CO2 emissions into the atmosphere are of interest.  The second is developing a technology to recover both pure CO2 and pure CH4 from the landfill gas streams.  The CH4 can be dispensed directly into natural gas pipelines if the purity is high enough and pure CO2 can be obtained for commercial use, enhanced oil recovery or sequestration.  So the nature of the problem is to identify an optimal technique (low capital cost, low operating cost) to recover both pure CO2 and CH4 from these gas sources.  This project looks at the separation and recovery of CO2 and CH4 from landfill gas by using different adsorbent materials to be used by an adsorption process.  The results of this project will help our society to be much more sustainable.