Catalytic ozonation for removal of antibiotic oxy-tetracycline using zinc oxide nanoparticles

Abstract The traditional wastewater treatment plants are mostly not designed to deal with polar micropollutants such as pharmaceuticals. Therefore, antibiotics must be completely removed before their emission ecosystems. Catalytic ozonation is used increase the efficiency of sole further. In present study, semi-batch experiments were conducted investigate and catalytic in degradation oxy-tetracycline (OTC) an environmental hazards contaminant aqueous solutions. Zinc oxide nanoparticles (ZnO) a agent ozone (ZnO/ $${\mathrm{O}}_{3})$$ O 3 ) . influence operational parameters pH (3–11), initial concentration (10–100) mg/l, temperature (15–35)°C, generation rate (0.138–1.38)mg/s catalyst dosage (25–200) mg/l on ZnO/ $${\mathrm{O}}_{3}$$ process was investigated. Ozone found have noticeable effect process; however, ZnO less effective. optimum condition 1.38 mg/s at = 7, after 35 min, 94% OTC removal achieved. results demonstrated that very effective method for mineralization solution.