Inderscience Publishers

The modelling of biochemical–thermal coupling effect on gas generation and transport in MSW landfill

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The landfill gas generation was investigated based on the theories of the thermodynamics, microbial dynamics and chemical dynamics. The coupling model was developed for describing the gas transport and heat release. And the relationship between the gas generation rate and the temperature was proposed. The parameters in the gas generation model were obtained by bioreactor test in order to evaluate the volume of gas production of the Erfeishan landfill in China. The simulation results shown that the operating life of the landfill will be overestimated if the model does not consider the thermal effect during degradation of the solid substrate.

Keywords: landfill gas generation, gas transport, biochemical–thermal coupling, modelling, municipal solid waste, MSW, thermodynamics, microbial dynamics, chemical dynamics, heat release, China, simulation, temperature

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