Treatment of Textile Wastewater by a Novel Clay/TiO2/ZnO-Based Catalyst, Applying a Synergic Catalytic Ozonation–Electroflocculation Process

This study aims to investigate the treatment of real textile wastewater using a novel bentonite clay/TiO2/ZnO-based ozonation catalyst. In this study, synergic electroflocculation/catalytic ozonation, catalytic and processes are applied in modified hybrid reactor. To authors’ knowledge, is first application clay/TiO2/ZnO as an catalyst for treating wastewater. The four operational variables—ozone dose (0.2–0.8 mg/min), reaction time (0–120 min), DC voltage supply (5–15 V), (0.5–2 g/L)—were studied decolorization removal chemical oxygen demand (COD). results showed that combined process (electroflocculation + clay/TiO2/ZnO/O3) had highest efficiencies COD color (97.86% 97.90%, respectively) at optimum parameters 10 volts. ozone 0.8 mg/min, 2 g/L further revealed initial pH plays essential role process’s overall performance. was efficient under alkaline (6–9). Based on empirical work, we established suitable effectively