SSolid waste disposal on land is the most common method for
managing municipal solid wastes in developing countries. The disposal
of solid waste can either be performed in good sanitary condition
like sanitary landfill or improper manner such as open
dumping. In many developing countries, the latter could become
predominant mode of operation due to limitation of budget, technical
knowledge or awareness of their environmental impact such as
leachate and gas formation (AIT, 2004). In term of gaseous pollution,
the decomposition of organic solid wastes at solid waste disposal
site leads to the formation of landfill gas which mainly composed
of methane and carbon dioxide. Direct release of those greenhouse
gases especially methane gas to atmosphere which is commonly
practiced in many countries raised much concern to the global
warming phenomena. In order to minimize this greenhouse gas