Modelling the risk assessment of groundwater pollution by leachates and landfill gases

摘要

This paper presents the variation of specific chemical parameters, which represent waste biodegradation. A quantitative risk assessment is presented of probable groundwater and aquifer contamination by landfill emissions. Modelling of biogas production and leachate emissions in landfills is presented. The mathematical modelling is made in order to assess waste biodegradation processes and their environmental impact based on case studies' field data. Particular characteristics and risks of groundwater pollution load by landfill emissions, like COD, TOC, LFG production, methane, carbon dioxide are evaluated making useful conclusions. The examining risk analysis modelling presents the entire life cycle of landfill emissions' characteristics. In the end, is presented an application of earthquake magnitude risk assessment for a landfill design.