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 to ecosystems. Catalytic ozonation is used to increase the efficiency of sole ozonation further. In the present study, semi-batch experiments were conducted to investigate the efficiency of sole ozonation and catalytic ozonation in the degradation of oxy-tetracycline (OTC) as an environmental hazards contaminant in an aqueous solutions. Zinc oxide nanoparticles (ZnO) were used as a catalytic agent with ozone (ZnO/\({\mathrm{O}}_{3})\). The influence of operational parameters such as pH (3–11), initial oxy-tetracycline concentration (10–100) mg/l, temperature (15–35)°C, ozone generation rate (0.138–1.38)mg/s and catalyst dosage (25–200) mg/l on the ZnO/\({\mathrm{O}}_{3}\) process was investigated. Ozone dosage was found to have the noticeable effect on the degradation process; however, the ZnO dosage was found to be less effective. The optimum condition was 1.38 mg/s at pH = 7, and after 35 min, a 94% of OTC removal was achieved. The results demonstrated that catalytic ozonation was a very effective method for degradation and mineralization of OTC in aqueous solution.

传统的废水处理厂大多未设计为处理极性微污染物，例如药品。因此，在将抗生素排放到生态系统之前，必须将其彻底清除。催化臭氧化用于进一步提高单独臭氧化的效率。在本研究中，进行了半间歇试验，以研究在水溶液中作为环境危害污染物的氧四环素（OTC）降解过程中，单独臭氧化和催化臭氧化的效率。氧化锌纳米粒子（ZnO）与臭氧（ZnO / （{\ mathrm {O}} _ {3}）\）一起用作催化剂。操作参数的影响，例如pH（3-11），初始氧四环素浓度（10-100）mg / l，温度（15-35）°C，臭氧产生速率（0.138-1.38）mg / s和催化剂研究了ZnO / \（{{mathrm {O}} _ {3} \）过程中的剂量（25–200）mg / l 。发现臭氧剂量对降解过程有显着影响。然而，发现ZnO剂量不太有效。最佳条件是在pH = 7时为1.38 mg / s，并且在35分钟后，达到了94％的OTC去除率。结果表明，催化臭氧氧化是一种非常有效的降解OTC水溶液的方法。