Applications Generalised methodology FEPS Example waste - PowerPoint PPT Presentation

Applications � Generalised methodology � FEPS

Example – waste repository � Features – waste, surface water, ground water, soil types, rock types, atmosphere, plants, humans, engineered barriers � Events – earthquake, flood, fire, intrusion � Processes – leaching, groundwater flow, surface flow, erosion, resuspension, transfer to plants, irrigation

Characteristic matrix – waste repository – uncovered waste atmosphere rain infiltration infiltration inhalation infiltratio evaporation surface water infiltration infiltration irrigation ingestion n exhalation erosion, flooding waste leaching leaching ingestion resuspension flooding barrier leaching leaching leaching uptake percolatio soil water adsorption uptake n well, groundwater ingestion breakthrough adsorption soil uptake ingestion food chain ingestion exhalation excretion humans

Example – Gela � Features – waste, surface water, ground water, soil types, rock types, atmosphere, plants, humans, engineered barriers � Events – earthquake, flood, fire, intrusion � Processes – leaching, groundwater flow, surface flow, erosion, resuspension, transfer to plants, irrigation � Specific features: � Retaining wall around the site – penetrates about 3 m into the underlying clay � Leachate is returned from the downstream sampling wells to the top of the stack

September, 2009 VIENNA

Characteristic matrix – Gela atmosphere rain infiltration infiltration inhalation infiltratio evaporation surface water infiltration infiltration irrigation ingestion n exhalation erosion, flooding waste leaching leaching ingestion resuspension flooding barrier leaching leaching leaching uptake percolatio soil water adsorption uptake n well, sampling well groundwater ingestion breakthrough adsorption soil uptake ingestion food chain ingestion exhalation excretion humans

Characteristic matrix – Gela atmosphere rain inhalation evaporation surface water infiltration irrigation ingestion exhalation waste flooding leaching ingestion resuspension barrier leaching well, sampling well groundwater uptake ingestion breakthrough food chain ingestion humans

Example – tailings dam � Features – liquor, sediment, base material, groundwater,.... � Events – breach of retaining wall, overflow,.... � Processes – leaching, leaching, groundwater flow, transfer to plants, irrigation

Characteristic matrix – tailings dam percolatio percolatio overflow dam water infiltration n n seepage wall seepage flooding percolatio infiltratio percolatio barrier infiltration n n n surface irrigation, percolatio uptak infiltration ingestion water flooding n e uptak soil desorption ingestion e soil percolatio uptak adsorption water n e well, ground water breakthrough excretion, food ingestion decay chain excretion humans

Kevala - existing situation (563.240m 2 ) Draining channel lake Inactive site sea Clay dyke Pump for surface water Phosphogypsum dyke

Application to Kevala � Single source compartment needs to be expanded � Have to allow for transfers (via water) between source compartments � Transfer of fluid to and from the ocean

Example – stack discharge � Features – stack, stack filters, atmosphere, soil, plants, humans,... � Events – filter breakdown � Processes – advection, convection, diffusion, dry deposition, wet deposition, leaching,.....

Characteristic matrix – stack discharge stack + filter discharge wet deposition, wet deposition, atmosphere rain dry deposition dry deposition infiltration, evaporation surface water infiltration irrigation adsorption exhalation, runoff soil leaching uptake resuspension well, ground adsorption uptake ingestion breakthrough water food chain ingestion humans