Год выпуска: 2014 Автор: Natalya Viktorovna Usova Издательство: LAP Lambert Academic Publishing Страниц: 140 ISBN: 9783659513466
Описание
Numerical analysis and modelling of gas flow within MSW landfill has the potential to significantly enhance the efficiency of design and performance of operation for landfill gas extraction and utilization projects. Available models implement a simple theoretical basis and treat the landfilled waste fill purely as a porous medium with the conservation of mass inherently assumed and the ongoing gas generation thus ignored. The research described in this work was intended to evaluate the error introduced into estimates of the intrinsic permeability of waste from landfill gas pumping tests if the ongoing gas generation within the landfilled MSW is ignored when the pumping tests are evaluated to yield estimates of the permeability. Two different approaches were used to simulate gas flow in the unsaturated waste fill: GeoStudio2007 software suite and a 1-D FD solution. This work demonstrated that the gas generation term should not be ignored when the gas flow is evaluated for MSW....
