Application of chemical oxidation for the treatment of refractory substances in leachates

Abstract

Abstract The application of chemical oxidation for the reduction of refractory organic content of the leachate originating from a stabilised landfill has been studied. The experimental results indicate that the oxidation process occurs in a reasonably good time and significant amount of the organics present are converted to CO2, about 35%. Ammonia is not easily oxidised, the conversion being less than 20%. Although by chemical oxidation significant quantities of the pollutants are removed, further leachate treatment is required for its safe disposal.