Five landfills were analyzed to provide a perspective of current practice and technical issues that differentiate bioreactor and recirculation landfills in North America from conventional landfills. The bioreactor and recirculation landfills were found to function in much the same manner as conventional landfills, with designs similar to established standards for waste containment facilities. L...

All available hedonic pricing estimates of the impact of landfills on nearby property values are assembled, including original estimates for three landfills in Pennsylvania. A metaanalysis shows that landfills that accept high volumes of waste (500 tons per day or more) decrease adjacent residential property values by 12.9%, on average. This impact diminishes with distance at a gradient of 5.9%...

The economic advantage of constructing and operating large-scale landfills over small-scale landfills has been used to justify regional landfills as a solution to the municipal waste disposal problem. In addition to the dampening effects on social efforts to divert waste away from landfills, higher external costs of larger landfills may in fact offset the private cost advantages. In this study,...

There are many reasons to mine landfills. For example, metals are increasingly shifting location from the Earth’s crust through human society into landfills. These new mines are located closer to the market, in contrast to traditional mines in the countryside where the metals are deep inside the crust requiring huge amounts of energy to be extracted. In addition, metals in the landfill pose a p...

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...

Increasing demand for developable space in urban areas has created increased interest in construction on top of old landfills. Landfill redevelopment projects can include hard uses such as commercial, industrial, or infrastructure facilities and soft uses such as athletic fields, golf courses, and amphitheatres. Engineering challenges associated with landfill redevelopment include foundation de...

Waste management is a distinct practice aimed at reducing its effects on health and the environment and increasing energy and material recovery. The urban waste management industry has been slow to adopt new technologies, such as sanitary landfills and incineration, which enable better treatment results. The aim of a thorough ecological-economic evaluation of different treatment technologies is...

Although bioreactor landfills have many advantages associated with them, challenges remain, including the persistence of ammonia-nitrogen in the leachate. It has been suggested that ammonia-nitrogen is one of the most significant long-term pollution problem in landfills and is likely a parameter that will determine when landfill postclosure monitoring may end. The fate of nitrogen in bioreactor...

Samples from several conventional, bioreactor and leachate recycle landfills were collected to evaluatethe degradation rate and degradation pattern of lignocelluloses (cellulose, hemicelluloses, and lignin),and the relationship between the lignocelluloses and biochemical me thane potential (BMP) and volatilesolid (VS). It was found that degradation of VS and cellulose in bioreactor ...

In January 1997, a pilot-scale project to assess the feasibility of in silu aerobic bioreduction of municipal solid waste was initiated at the Live Oak Landfill, located near Atlanta, Georgia The high costs (money, regulatory hurdles, societal objections) of developing new landfills are making fccovery and reuse of existing landfill space an increasingly attractive alternative. Onc bf the first...