نوع مقاله : مقاله پژوهشی
نویسندگان
1 دانشجو گروه منابع آب دانشگاه آزاد کرمان-کرمان ، ایران
2 هیات علمی دانشگاه آزاد اسلامی کرمان
چکیده
کلیدواژهها
موضوعات
عنوان مقاله [English]
نویسندگان [English]
The presence of antibiotics as emerging contaminants in urban wastewater has become a concern due to their adverse effects on human health and the environment. This study investigates the presence and concentration of antibiotics in the wastewater and effluent of the Kerman sewage treatment plant and examines the effectiveness of advanced oxidation processes (AOPs) for their removal.
Methodology
The study evaluates the efficiency of hybrid AOPs, including ozonation in a moving bed biofilm reactor (MBBR+O3) and a combination of the Fenton process and ozonation in the same reactor using a ferrous catalyst and UV light (MBBR+O3+UV/Fenton-Fe²⁺). The antibiotics targeted in this study were sulfamethoxazole, trimethoprim, tetracycline, amoxicillin, and azithromycin. The removal efficiency, operational parameters, and treatment duration for each AOP were analyzed.
Results and Conclusion
For AOP1, with an oxidation time of 90 minutes, the removal efficiencies were 62.74% for sulfamethoxazole, 63.75% for trimethoprim, 70% for tetracycline, 57.37% for amoxicillin, and 54.57% for azithromycin. For the combined AOP2, with an oxidation time of 60 minutes, the removal efficiencies were 90.19% for sulfamethoxazole, 91% for trimethoprim, 100% for tetracycline and amoxicillin, and 94.22% for azithromycin. These results demonstrate high removal efficiencies for the tested antibiotics and provide valuable insights into the application of AOPs for eliminating antibiotics and emerging contaminants in urban wastewater treatment plants. This underscores the importance of implementing efficient treatment strategies to preserve water quality and protect the environment, highlighting the necessity of incorporating combined oxidation units in current treatment facilities.
کلیدواژهها [English]
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