:: Volume 5, Issue 2 (Spring, 2018) ::
Environ. health eng. manag. 2018, 5(2): 85-92 Back to browse issues page
Sonochemical degradation of azithromycin in aqueous solution
Atiyeh Yazdani , Mohammad Hossein Sayadi
Corresponding Author: 1Department of Environmental Sciences, Faculty of Natural Resources and Environment, University of Birjand, Birjand, Iran , Mh_sayadi@birjand.ac.ir
Abstract:   (333 Views)
Background: The presence of pharmaceutical substances and their residual in water resources is an important environmental concern. Azithromycin, an antibiotic that is used for the treatment of infectious diseases, is a pollutant agent in the wastewater. The aim of this study was to investigate azithromycin degradation in aqueous solution through ultrasonic process in the presence of zinc oxide nanoparticles 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 peroxide concentration (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. The highest degradation efficiency of 98.4% was achieved after 15 minutes of ultrasonic irradiation under optimum 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.
Keywords: Azithromycin, Catalysis, Wastewater, Ultrasonics
eprint link: http://eprints.kmu.ac.ir/id/eprint/27918
Full-Text [PDF 634 kb]   (123 Downloads)    
Type of Study: Research | Subject: Special
Received: 2018/06/30 | Accepted: 2018/06/30 | Published: 2018/06/30



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Volume 5, Issue 2 (Spring, 2018) Back to browse issues page