Sonochemical degradation of azithromycin in aqueous solution
عنوان مقاله: Sonochemical degradation of azithromycin in aqueous solution
شناسه ملی مقاله: JR_EHEM-5-2_005
منتشر شده در شماره ۲ دوره ۵ فصل spring در سال 1397
شناسه ملی مقاله: JR_EHEM-5-2_005
منتشر شده در شماره ۲ دوره ۵ فصل spring در سال 1397
مشخصات نویسندگان مقاله:
Atiyeh Yazdani - Department of Environmental Sciences, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran
Mohammad Hossein Sayadi - Department of Environmental Sciences, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran
خلاصه مقاله:
Atiyeh Yazdani - Department of Environmental Sciences, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran
Mohammad Hossein Sayadi - Department of Environmental Sciences, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran
The presence of pharmaceutical substances and their residual in water resources isan important environmental concern. Azithromycin, an antibiotic that is used for the treatment ofinfectious diseases, is a pollutant agent in the wastewater. The aim of this study was to investigateazithromycin degradation in aqueous solution through ultrasonic process in the presence of zinc oxidenanoparticles as catalysts.Methods: Sonocatalytic experiments were performed at variable conditions including pH (3-8), temperature (20-60°C), time (3-21 minutes), catalyst dosage (0.25-2 g/L), hydrogen peroxideconcentration (15-100 mg/L) and initial azithromycin concentration (10-100 mg/L).Results: The optimum values for pH (3), temperature (40°C), time (15 minutes), catalyst dosage (1 g/L),H2O2 concentration (50 mg/L) and initial azithromycin concentration (20 mg/L) were determined. Thehighest degradation efficiency of 98.4% was achieved after 15 minutes of ultrasonic irradiation underoptimum condition.Conclusion: According to the results, ultrasonic irradiation is able to degrade azithromycin. In addition,ZnO and hydroxyl radical can successfully accelerate the reaction process in the shortest possible time.
کلمات کلیدی: Azithromycin, Catalysis, Wastewater, Ultrasonics
صفحه اختصاصی مقاله و دریافت فایل کامل: https://civilica.com/doc/835113/