Treatment of leachates in hightech systems

Leachates are complex wastewaters, which often contain high concentrations of ammoniwnions, refractory organic compounds as well as heavy metals. The composition of the leachateis a function of the kind of waste that has been deposited at the landfill. Furthermore,substances created during microbial and abiotic degradation processes of the waste will beeluted from the landfill. It is therefore difficult to determine the chemical composition of aleachate especially in regard to organic substances. Leachates from different landfills differ incomposition. No single treatment process is therefore suitable for all leachates. The processhas to be optimised for the specific leachate, which will be treated.