Overview
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Read the articleAUTHORS
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Bernard GALLICHER: ESCOM engineer - Former Process and Projects Manager, GEA Process Engineering France, KESTNER division
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Olivier SAVEL: ENSIGC engineer - Process/project manager, GEA Process Engineering France, KESTNER division
INTRODUCTION
Evaporation plays an important role in the treatment of liquid effluents. It is mainly used for the concentration of industrial effluents, because although it is technically possible to produce condensate by evaporation from domestic wastewater that can be used as drinking water, this option is not economically viable. In the vast majority of installations, evaporation is combined with other techniques such as decantation, filtration, dewatering, drying and cementing, among others. The use of membranes is now a common choice for the volume reduction of many effluents with low initial concentrations. This reduces evaporator load and, consequently, investment and operating costs. But evaporation is still essential to obtain highly concentrated solutions and, in some cases, to recover marketable products and/or achieve zero liquid discharge.
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Evaporation in liquid effluent treatment
Bibliography
Directory
Manufacturers – Suppliers – Distributors
Main suppliers of evaporators for wastewater treatment :
Aquatech http://www.aquatech.com
France Evaporation http://www.evaporation.fr
Gea Process Engineering France...
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