A framework to contain a spatially distributed model of the degradation of solid waste in landfills

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 o...

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Bibliographic Details
Published in:Waste management & research 2003-08, Vol.21 (4), p.330-345
Main Authors: White, James K., Ren, Qingchao, Robinson, John P.
Format: Article
Language:English
Subjects:
Chemistry
Consolidation
Degradation
Environmental Pollutants - analysis
Facility Design and Construction
Gases
Inoculation
Landfills
Mathematical models
Models, Theoretical
Porosity
Refuse Disposal
Shredding
Solid wastes
Waste management
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Summary: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.
ISSN:0734-242X
1096-3669
DOI:10.1177/0734242X0302100406