1,721,107 research outputs found
Public-private partnership for solid waste management services
No full textThe increasing cost of municipal solid waste (MSW) management has led local governments in numerous countries to examine if this service is best provided by the public sector or can better be provided by the private sector. Public–private partnerships have emerged as a promising alternative to improve MSW management performance with privately owned enterprises often outperforming publicly owned ones. In Lebanon, several municipalities are transforming waste management services from a public service publicly provided into a public service privately contracted. In this context, a regulated private market for MSW management services is essential. The present study examines a recent experience of the private sector participation in MSW management in the Greater Beirut Area. The results of a field survey concerning public perception of solid waste management are presented. Analysis of alternatives for private sector involvement in waste management is considered and management approaches are outlined. <br/
GHG Emissions from solid waste and wastewater management: mitigation perspectives in developing vs. developed countries
No full textComparative assessment of methodologies for methane emissions estimation from MSW landfills
No full textMethane emissions from landfills: a methodology comparative assessment
No full textClimate change from greenhouse gas emissions has been at the forefront of current research in the past decade. Anthropogenic emissions of greenhouse gases, over the past 100 years led to a considerable increase in the concentration of these gases in the atmosphere. Methane emissions, of which municipal solid waste landfilling is one of its major anthropogenic sources, make a significant contribution to the greenhouse effect. This paper considers the influence of municipal solid waste management, particularly landfilling on climate change, presents a brief review of methane formation mechanisms in municipal solid waste landfills, describes estimation methods used in determining methane emissions, and compares results and associated uncertainties that are typically obtained with each method. Applications for estimating country-wide (with the country of Lebanon as an example) methane gas emissions from solid waste are presented using the approach adopted by the Intergovernmental Panel on Climate Change. The relative significance of these emissions is assessed in comparison with methane emissions from developing and developed countries. Mitigation measures to reduce the potential impacts of methane emissions taking into consideration country specific economic and technological conditions are also discussed. <br/
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