Removing metals form leachate: When is sorption the solution?
Three potential filter materials, granular activated carbon, bone meal and iron fines, were evaluated for treatment of heavy metal contaminated landfill leachate. All materials could sorb some metals to a high extent; more than 90 % of some metals were removed. However, all filters suffered from the drawback of releasing unwanted substances. Geochemical modelling was used to elucidate sorption mec