Combine Thermal Oxidation with Evaporation and save Energy

Regenerative thermal oxidizers (RTOs) have been commonly used for purification of exhaust streams. However, a separate unit has always been required to evaporate any remaining aqueous residues. The Ecopure EVA is a completely new evaporation-tower design that can combine both processes, and includes an autothermal mode that provides high energy efficiency. The height of the evaporation tower is selected to suit the evaporation path for individual contaminants. The tower includes a single central lance with an appropriate number of dual-material nozzle heads. Combining the disposal of waste gases and waste water in a single plant not only reduces the cost of investment; by virtually eliminating the use of primary energy sources, it also lowers operating costs, says the firm. — Dürr Systems GmbH, Stuttgart, Germany
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