Framework
-Active industrial facilty on the Catalan coast. Site polluted by an old chemical industry of acid sulfuric production from the second pyrite ashes toasting.
-Goal: To limit the leaching of heavy metals avoiding their mobilization towards the water table.
Parameters to be treated
-Pollution of hazardous waste and the associated remainder soil, mainly by As and Pb.
-Affected area > 22.000 m2
-Treated volume >15.000 m3
Treatment
-On site treatment by excavation with screening, extension, stabilization, filling and compaction.
-Ending with double waterproof surface treatment and slopes for the proper management of runoff water.
Results obtained
-8 months of stabilization operation.
-100% of conform remaining soils..
-100% of conform stabilized soils (52% with Class I-Inert landfill concentrations, 48% with Class II non-hazardous landfill concentrations).