Process technology for Effluent Water Evaporation by utilizing the waste heat from the process Plants to achieve a true 100 % Zero Effluent Water Discharge System for any kind of effluent generated by any process plants. The solids in the effluent are continuously decanted and collected while the entire water is evaporated and steam generated used for low pressure heating and recover the entire water as process water with low TDS. The design and material of construction of the plant depends on the quantity and the type of effluent generated by the process plant and also the quantity of waste heat available in the process after we undertake a energy steam audit.