| 摘要 |
<p>A description is given of a process for producing a metallic coating on a substrate, which comprises deposition of at least one metal in an electroplating bath comprising an aqueous electrolyte containing organic additives and at least one metal present in dissolved form and at least one rinsing process in which the coated substrate is freed of electrolyte residues. In the process, at least part of the electrolyte is taken from the bath and mixed with rinsing water obtained in the rinsing processes. The mixture is passed through at least one UV reactor (6) and partly vaporized, with the heat energy required for vaporization being at least partly recovered from the steam and/or being at least partly provided by means of at least one separate heat generation unit. In addition, an apparatus for the UV treatment of an aqueous electrolyte solution containing organic additives and at least one metal in dissolved form, which can be used in such a process, is described. The apparatus comprises at least one UV reactor (6), a vaporization facility (7) and a heat exchanger (16; 17) and/or a separate heat generation unit.</p> |
