Sulfonamide antibiotic reduction in aquatic environment by application of fenton oxidation process

Journal of Environmental Health Science Engineering

Mitra Gholami¹  Mahdi Farzadkia¹  Ahmad Jonidi Jafari²  Somayyeh Dehghani¹ 

[1]Department of Environmental Health Engineering and Center for Water Quality Research, Tehran University of Medical Sciences, Tehran, Iran

[2]Department of Environmental Health, Faculty of Medical Sciences, Tarbiat Modares University, Tehran, Iran

关键词: Sulfamethoxazole;    Fenton reaction;    Oxidation process;    Antibiotic;   

Others  :  820804
DOI  :  10.1186/1735-2746-10-29

 received in 2012-06-19, accepted in 2013-02-24,  发布年份 2013

【 摘 要 】

Presence of antibiotics in the environment may cause potential risk for aquatic environment and organisms. In this research, Fenton oxidation process was offered as an effective method for removal of antibiotic sulfamethoxazole from aqueous solutions. The experiments were performed on laboratory-scale study under complete mixing at 25±2°C. The effects of initial antibiotic concentration, molar ratio of H₂O₂/Fe⁺², solution pH, concentration of H₂O₂, Fe⁺² and reaction time was studied on the oxidation of sulfamethoxazole in three level. The results indicated that the optimal parameters for Fenton process were as follows: molar ratio of [H₂O₂]/[Fe⁺²] = 1.5, pH= 4.5, and contact time= 15 min. In this situation, the antibiotic removal and COD reduction were achieved 99.99% and 64.7-70.67%, respectively. Although, Fenton reaction could effectively degrade antibiotic sulfamethoxazole under optimum experimental conditions, however, the rate of mineralization was not completed. This process can be considered to eliminate other refractory antibiotics with similar structure or to increase their biodegradability.

【 授权许可】

   
2013 Dehghani et al.; licensee BioMed Central Ltd.

【 图 表 】

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