Abstract:

The aim of the work was to investigate the effect of UV/H₂O₂ chemical oxidation on fouling in the process of nanofiltration. Investigations were carried out for model textile wastewater from the dyeing of cellulose fibers with direct reactive dyes which contained anionic, non-ionic and cationic surfactants. The effect of preliminary UV/H₂O₂ oxidation of the wastewater on nanofiltration parameters was also investigated. It was found that the
preliminary UV/H₂O₂ oxidation reduced fouling and thus increased the nanofiltration efficiency of wastewater containing cationic and non-ionic surfactants, which are derivatives of polysiloxanes.