The anaerobic decomposition of solid waste in a landfill produces methane, a potent greenhouse gas, and if recovered, a valuable energy commodity. Methane generation from U.S. landfills is usually estimated using the U.S. EPA's Landfill Gas Emissions Model (LandGEM). Default values for the two key parameters within LandGEM, the first-order decay rate (k) and the methane production potential (L0...

The German EPER, TNO, Belgium, LandGEM, and Scholl Canyon models for estimating methane production were compared to methane recovery rates for 35 Canadian landfills, assuming that 20% of emissions were not recovered. Two different fractions of degradable organic carbon (DOC(f)) were applied in all models. Most models performed better when the DOC(f) was 0.5 compared to 0.77. The Belgium, Scholl...

The present paper focuses on the development of an integrated assessment model that embeds the web dimension and aims at increasing awareness in society, especially on environmental issues. The model incorporates features that make it capable of promoting participatory planning procedures in dealing with environmental problems. The first part of the paper presents the notion of both Integrated ...

Open dumping and landfilling are the prevalent solid waste disposal practices in Thailand. Surveys on the disposal sites revealed the presence of 95 landfills and 330 open dumps. Methane emission potential at these sites was estimated by three methods. Results of the Intergovernmental Panel on Climate Change (IPCC) method, Landfill Gas Emission model (LandGEM), and closed flux chamber technique...

Mechanical-Biological Treatment (MBT) is a technology applied to reduce the environmental impacts of urban waste based on stabilizing organic matter content. As process not entirely efficient, residue can generate methane when it landfilled. Long-term emissions estimation models usually over or underestimated because actual composition after stabilization generally unknown. This work proposes s...

background: the biogases are the mixture of gases produced through the microbial decomposition of organic waste which are amply observed in the landfills. the main purpose of this study was to estimate the emission rates of landfill gases such as carbon dioxide, methane and non-methane organic compounds (nmocs) in the solid waste landfill of rodan city in hormozgan province. methods: all the ne...

In many countries, open dumping is considered the simplest, cheapest, and most cost-effective way of managing solid wastes. Thus, in underdeveloped economies, Municipal Solid Wastes (MSW) are openly dumped. Improper waste disposal causes air, water, soil pollution, impairing permeability blockage drainage system. Waste Management (SWM) can be enhanced by operating a well-engineered site with ca...

The control and minimization of greenhouse gas emissions is an important task modern ecology. One the sources gases landfills household waste (LHW). A special feature LHWs, as a source gases, complexity estimating emissions. fact that production (mainly methane) at LHW long process, time-consuming dependent on many factors. In particular, rate putrefaction organic depends environmental paramete...

Introduction: The increase in greenhouse gas (GHG) emissions has changed the global temperature and had a negative impact on global climate conditions. Landfill gas is one of the major GHG contributors. With the knowledge of GHG inventory, it is possible to carry out disaster prevention measures. Materials and Methods: In this study, tow Landfill Gas Emissions Modeling (LandGEM) and Intergover...