In Sweden, there are more than 80 000 potentially contaminated sites (areas of land) due to human activities (industrial, commercial, agricultural etc.).
We are developing soil remediation techniques, which enable to treat contaminated soil on a large scale in a cost-efficient way. We are using low-voltage electrical current to spread iron oxides from corroding electrodes that bind contaminants in any type of soil, including complicated-to-treat clays. Using this principle, metal contaminants stay in soil, but are immobilized and “neutralized”, while organic contaminants get destroyed by electricity-induced formation of free radicals. Toxicity of immobilised metals is substantially reduced, which in turn decreases risks to human health and the environment.Läs mer om forskningsprojektet