Leachate from landfill contains high concentrations of salts and can not be discarded because it causes environmental pollution. It is treated mainly by a membrane method, by which it is separated into filtered water and condensed salts solution. The condensed salts solution then requires secondary treatment. We have developed one-stage methods of evaporating water from the leachate by spray-atomizing of the leachate or by wetting cloth with leachate and heating it. Experimental results show that reduction of concentration of salts is 93% by the spray-atomizing method and 99.7% by the wetted cloth method, while the thermal efficiency is 56% for the spray-atomizing method and 28% for the wetted cloth method.