Profile: C&G Depurazione Industriale srl is specialized in manufacturing evaporators with vacuum technology, an advanced innovative system which allows waste water minimization with zero discharge. We are ISO 9001 certified. Multiple Stage Evaporators are used for treatment of larger wastewater volumes. Energy from the first stage is used to supply the corresponding stages. Production capacity is from 2,600 to 13,200 gallons per day. The more stages used in evaporation, the less vapor needs to be supplied to the system, with a consequent decrease in the energy consumption fed to the boiler. These evaporators are used to treat wastewaters from different types of industrial processes. Energy, under the form of heat, has to be supplied when a solution must be evaporated. Electric energy is generally used to feed the refrigeration compressor in the vacuum evaporators, but when this is not possible, alternative energy sources can be used. In the case of multiple stage evaporators, however, the evaporation process is divided into various stages and it is necessary to produce vapor only for the first stage.