Sonochemical degradation of azithromycin in aqueous solution
Journal Title: UNKNOWN - Year 2018, Vol 5, Issue 2
Abstract
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.
Authors and Affiliations
Keywords
Related Articles
- EP ID EP429034
- DOI 10.15171/EHEM.2018.13
- Views 69
- Downloads 0
Estimation of health effects (morbidity and mortality) attributed to PM10 and PM2.5 exposure using an Air Quality model in Bukan city, from 2015-2016 exposure using air quality model
Background: Air Quality software is a useful tool for assessing the health risks associated with air pollutants. Quantifying the effects of exposure to air pollutants in terms of public health has become a critical compo...
Acute toxicity effect of glyphosate on survival rate of common carp, Cyprinus carpio
Background: Herbicides are usually used to control weeds and some of them like glyphosate are nonsele ctive herbicides. Aquatic environments are usually the last destinations of agricultural pesticides, which disrupt the...
The potential risk of heavy metals on human health due to the daily consumption of vegetables
Background: Vegetables are one of the most important components of daily food. Thus, this research was done to evaluate the potential risk of heavy metals on human health due to the consumption of vegetables distributed...
Catch per unit efforts and impacts of gears on fish abundance in an oxbow lake ecosystem in Eastern India
Background: Oxbow lakes are abundant in indigenous fishes, but they are subject to unsustainable fishing practices, potential overexploitation, and indiscriminate use of fine-meshed fishing gear. To quantify the catch pe...
Role of organic matter, clay, and iron contents in the sorption of oxytetracycline on river sediments
Background: Oxytetracycline (OTC) is a widely-used antibiotic; metabolism studies indicate only partial assimilation of it inside the body. Traditional wastewater treatment plants cannot remove OTC, and this results in t...