VERFAHREN ZUR AUFBEREITUNG DES UMLAUFWASSERS AUS SPRITZKABINEN MIT NASSAUSWASCHUNG

摘要

The present invention relates to a method of treating the circulation water from wet-wash spray booths (1) by: (a) passing at least some of the circulation water to reserve osmosis stage (11), (b) separating the circulation water into a retentate and into a permeate in the reserve osmosis stage (11), (c) separating the retenate from the reverse osmosis (11) into a solid fraction and into a volatile fraction in an evaporator unit (12), (d) condensing the volatile fraction from stage (c), (e) utilizing the permeate from stage (b), the solid fraction from stage (c) and the condensate from stage (d).