Über die Entfernung von Schwermetallionen aus Betriebsabwässern durch Ultrafiltration. Teil 1: Grundlegende Erkenntnisse an Modellösungen unter Zusatz von Komplexbildnern

Fundamental experimental experience on the concentration of metal ions was gathered by ultrafiltration at 0.3 MPa pressure by using membranes with pores in a laboratory cell with stirrer. The potentiality of retention against the metal ions R and the stream density of filtration IF were measured for model liquids of CuSO4, NiSO4, ZnSO4 and AgNO3. The experimental results involve the influence of the membran materials, the role of several tested additives for complex formation and pH, and the influence of strange electrolytes, respectively, on the membrane characteristics R and IF.