method and means for the treatment of wastewater from textile finishing enterprises such as dyeing, the waste water reaktivfarbstoffe and metallkomplexe, especially kupferkomplexe, contain, in order to reduce discoloration and the metal ions concentration, i.

摘要

method and means for the treatment of wastewater from textile finishing enterprises such as dyeing, the waste water reaktivfarbstoffe and metallkomplexe, especially kupferkomplexe contain, in order to reduce discoloration and the metal ions concentration, especially the copper ions impinging concentration.legal codes to write a sufficient discoloration and unterschreitende limits for water pollutants, especially heavy metals (such as copper), provided that the waste water directly into water or indirectly in different waste water such as sewage treatment plants, opened n.all these requirements are met, if the waste water in a first oxidationsstufe in known manner to a peroxiverbindung for clarification treatment, and in a second stage permanganat to precipitation of metal is added.