Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Eine Plattform für die Wissenschaft: Bauingenieurwesen, Architektur und Urbanistik
Permeability of Municipal Solid Waste (MSW) in Bioreactor Landfill with Degradation
Bioreactor landfills are operated for rapid stabilization of waste, increased landfill gas generation for cost-effective energy recovery, gain in landfill space, enhanced leachate treatment, and reduced post closure maintenance period. The fundamental process of waste stabilization in bioreactor landfill is recirculation of generated leachate back into the landfills, which creates a favorable environment for rapid microbial decomposition of the biodegradable solid waste. In order to better estimate the generated leachate and design of leachate recirculation system, clear understanding of permeability of MSW and the factors influencing the permeability is necessary. The objective of the paper is to determine the changes in hydraulic properties of MSW in bioreactor landfill with time and decomposition. Four small scale bioreactor landfills were built in laboratory to prepare samples representative of each phase of decomposition. A series of constant head permeability tests were performed on the samples generated in laboratory scale bioreactors to determine the variation of permeability with degradation. The test results indicated that permeability of MSW decreased from 0.0088 cm/sec, at initial phase, to 0.0013 cm/sec at advance stage of decomposition.
Permeability of Municipal Solid Waste (MSW) in Bioreactor Landfill with Degradation
Bioreactor landfills are operated for rapid stabilization of waste, increased landfill gas generation for cost-effective energy recovery, gain in landfill space, enhanced leachate treatment, and reduced post closure maintenance period. The fundamental process of waste stabilization in bioreactor landfill is recirculation of generated leachate back into the landfills, which creates a favorable environment for rapid microbial decomposition of the biodegradable solid waste. In order to better estimate the generated leachate and design of leachate recirculation system, clear understanding of permeability of MSW and the factors influencing the permeability is necessary. The objective of the paper is to determine the changes in hydraulic properties of MSW in bioreactor landfill with time and decomposition. Four small scale bioreactor landfills were built in laboratory to prepare samples representative of each phase of decomposition. A series of constant head permeability tests were performed on the samples generated in laboratory scale bioreactors to determine the variation of permeability with degradation. The test results indicated that permeability of MSW decreased from 0.0088 cm/sec, at initial phase, to 0.0013 cm/sec at advance stage of decomposition.
Permeability of Municipal Solid Waste (MSW) in Bioreactor Landfill with Degradation
Hossain, MD Sahadat (Autor:in) / Penmethsa, Kiran Kumar (Autor:in) / Hoyos, Laureano (Autor:in)
GeoCongress 2008 ; 2008 ; New Orleans, Louisiana, United States
GeoCongress 2008 ; 120-127
07.03.2008
Aufsatz (Konferenz)
Elektronische Ressource
Englisch
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