Process for recovering the overspray of aqueous coating agents during spray application in spray booths

摘要

A method is described for recovering the overspray of water-based coating materials produced by spray coating in spray booths, in which water-based circulating liquid is circulated in order to take up the overspray. The overspray material is removed from the circulating liquid continuously or discontinuously in an electrocoagulation bath, the concentration of the overspray in the electrocoagulation bath being kept higher, by means of ultrafiltration, than in the circulating liquid of the spray booth. IMAGE