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Evaluation of Fenton Process Efficiency in Removal of Tetracycline From Synthetic Wastewater



Ghaffari Y1 ; Mahvi A2 ; Alimohammadi M2 ; Nabizadeh R2 ; Mesdaghinia A2 ; Kazemizad L3
Authors

Source: Journal of Mazandaran University of Medical Sciences Published:2017

Abstract

Background and purpose: Recently, concerns regarding high concentrations of antibiotics in the environment have increased. Tetracycline is one of the most common antibiotics in human, agricultural, and veterinary treatments. This study aimed to evaluate the efficiency of Fenton oxidation process for tetracycline removal from synthetic wastewater. Materials and methods: In this study, we assessed the effect of changes in initial antibiotic concentration (40-80 mg/l), molar ratio of [H2O2]/[Fe+2] (5-15), and contact time (5-30 minutes) on the efficiency of Fenton process. Tetracycline concentration was determined using high-performance liquid chromatography (HPLC). In addition, biodegradability rate was evaluated through chemical oxygen demand (COD) tests. Data analysis was performed in R software based on central composite design model. Results: The optimal condition using Fenton process included initial concentration of 57 mg/l, molar ratio of [H2O2]/[Fe+2]= 11.27, and 30 min contact time which resulted in removal of 90.15% of tetracycline and 74.6% of COD. Conclusion: Fenton treatment, which is a safe, cost-effective, and easy process could be used as an effective method to remove tetracycline from aqueous environments. © 2017, Mazandaran University of Medical Sciences. All rights reserved.
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