MinImpact

The aim of the project is to build cross-border best practices regarding the handling of sulfidic soils. Sulfidic soils are a big challenge when encountered in infrastructure projects and urban expansion due to poor geotechnical properties and severe acidification when disturbed. The project partnership in Finland and Sweden has complementary and practical expertise. A multidisciplinary approach is needed to assess the long-term environmental consequences of current management methods of excavated/dredged sulfidic soils. 

The best practices will be developed through mutual transfer of knowledge between the project partners and the target group, i.e. permit-granting and supervisory authorities, consultants, municipal urban planning offices, landfill management companies and national transport authorities involved in land development projects. The activities consist of field experiments with complementary laboratory experiments, where management techniques of sulfidic soils under waterlogged and drained conditions and with different amendments are investigated in order to enhance the existing knowledge base. The project results in a report on best practices to support authorities and contractors during the permitting process to allow a local and resource efficient management of the excavated soil.