In November 2015 AWT completed construction of water treatment lines designed for recirculation of rinse water from plating plant and for demineralization of fresh water. Both lines comprised multiple purification steps. Sand filtration, active carbon treatment, followed by ion exchange - subsequent cation and anion exchange, and finally UV disinfection were implemented for rinse water treatment. Demineralization line comprised active carbon treatment, softening step, and reverse osmosis. Production lines are fully automated and controlled by a central PLC. The scope of delivery included storage tanks for untreated and clean water.
Vacuum evaporation unit EVA 25G designed for treatment of highly corrosive waste water from chrome plating plant has been delivered, installed and started production on location. Initial runs with highly polluted corrosive waste water produced treated water of high quality with content of Cr and Cr(IV) markedly lower than the local limits for acceptable discharge or used back in production.