Verifying compliance of a metallic surface treatment company with bat requirements, to minimize emissions of pollutants in water

The main activity of the studied company is treatment and coating of metals (galvanizing plating), trapping and treatment of waste water. Galvanizing consists in creating a superficial diffusion layer of iron alloy. BATs (Best Available Techniques) do not necessarily mean the most advanced technique available, but the best technique from an economic point of view for a particular installation. Results of the research relate to compliance of the industrial water treatment plant to BAT best available techniques, in order to minimize pollutants discharged into the sewerage network. Furthermore, the current paper identifies possible dysfunctional problems of the galvanizing plant and of the sewage treatment plant and makes suggestions of remedies for possible technical and organizational problems.