As a part of the wastewater treatment plant of a Textile company in the Middle East, a two-stage reversed osmosis system is installed as final treatment, removing salts and color from the water. To thicken the brine, a GaLiCos evaporator is installed with a design capacity of 5 m³/h. to concentrate the water to the limits of saturation. As a part of the process, it is intended that a side stream is extracted from the process where controlled crystallization can take place.