title: A framework to contain a spatially distributed model of the degradation of solid waste in landfills.
abstract: This paper describes the concept and development of a generic spatially distributed numerical model that can contain and link sub-models of landfill processes in order to simulate solid waste degradation and gas generation in landfills. The model has been designed to simulate anaerobic degradation of solid waste saturated in leachate, and to reflect the effect on degradation of the control of both the flow and chemistry of the leachate in the pore space of the solids. The model can accommodate different profiles of waste constituents and therefore has the potential to simulate the effects of pre-treatment techniques such as shredding and inoculation. Components of the model simulate the transport of leachate and gases, and the consolidation of the solid waste. The results of some prototype calculations are presented.
authors.affiliation: Department of Civil and Environmental Engineering, University of Southampton, Southampton SO17 1BJ, United Kingdom. j.white@btinternet.com
authors.forename: James K
authors.initials: JK
authors.lastname: White
authors.forename: Qingchao
authors.initials: Q
authors.lastname: Ren
authors.forename: John P
authors.initials: JP
authors.lastname: Robinson
mesh_terms: D004785:Environmental Pollutants / Q000032:analysis; D005160:Facility Design and Construction; D005740:Gases; D008962:Models, Theoretical; D016062:Porosity; D012037:Refuse Disposal
chemical_list: D004785:Environmental Pollutants; D005740:Gases