The paper presents results of research on the use of composite membranes of polyacrylonitrile (PAN) doped with graphene oxide (GO) to remove contaminations of galvanic wastewater. Membranes were obtained using phase inversion method from PAN and GO solution in N,N-dimethylformamide (DMF). Wastewater was pre-treated with the flocculant Magnafloc®336. Next, ultrafiltration of the treated wastewater was carried out in the ultrafiltration cell AMICON on the previously prepared PAN/GO composite membranes. Physico-chemical properties and composition of solutions before and after integrated purification process were analyzed by UV-Vis spectrophotometer and atomic absorption spectrometry (AAS). As a result of flocculation from wastewater there have been removed phosphates (97%), chlorides (5,2%), sulfates (5,9%) and iron (82%). In addition, as a result of ultrafiltration was complete removal of phosphate anions (100%) and iron (~91-92%), zinc (68÷84%), lead (65-98%) and cadmium (~67%).