Enhanced electro-Fenton processes by persulfate radical for atenolol oxidation from aqueous solution

IF 1.3 Q4 ENVIRONMENTAL SCIENCES
M. Chatraee, Afshin Ebrahimi, A. Fatehizadeh
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引用次数: 0

Abstract

Background: Pharmaceuticals and personal care products (PPCPs) are a group of emerging environmental pollutants that have attracted the attention of many researchers due to their harmful effects on aquatic environment, animals, and humans. Thus, it is necessary to remove these contaminants from water resources. This study aimed to assess the efficiency of enhanced electro-Fenton (EF) process by persulfate (PS) radical for removal of atenolol (ATL) from aqueous solutions. Methods: The bench scale experimental setup was used to examine the factors affecting the ATL removal efficiency from synthetic wastewater; supporting electrolyte type, pH, contact time, PS concentration, Fe concentration, and ATL initial concentration. Results: Based on the results, ATL removal efficiency of 78.6% was reached under the optimum conditions of enhanced EF process by PS radical. The optimum conditions included NaCl (as a supporting electrolyte) dose of 0.5 g/L, pH 5, contact time of 60 minutes, PS dose of 0.15 g/L, Fe dose of 0.15 g/L, current density (CD) of 1.5 A/m2 , and ATL concentration of 40 mg/L. Kinetic model was following the second-order kinetics. Conclusion: The studied advanced oxidation process (AOP) can effectively remove ATL from aqueous solutions. Therefore, it can be used as an effective technique for removing other organic matter from the wastewater.
过硫酸根增强电Fenton法从水溶液中氧化阿替洛尔
背景:药品和个人护理产品(PPCPs)是一组新兴的环境污染物,由于其对水生环境、动物和人类的有害影响,引起了许多研究人员的关注。因此,有必要从水资源中去除这些污染物。本研究旨在评估过硫酸盐(PS)自由基增强电芬顿(EF)工艺从水溶液中去除阿替洛尔(ATL)的效率。方法:采用台架实验装置考察了影响合成废水ATL去除率的因素;支持电解质类型、pH、接触时间、PS浓度、Fe浓度和ATL初始浓度。结果:在PS自由基增强EF工艺的最佳条件下,ATL的去除率达到78.6%。最佳工艺条件为:NaCl用量为0.5g/L,pH为5,接触时间为60min,PS用量为0.15g/L,Fe用量为0.15mg/L,电流密度(CD)为1.5A/m2,ATL浓度为40mg/L。动力学模型遵循二阶动力学。结论:所研究的高级氧化法(AOP)能有效地去除水溶液中的ATL。因此,它可以作为一种有效的去除废水中其他有机物的技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
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来源期刊
CiteScore
2.40
自引率
37.50%
发文量
17
审稿时长
12 weeks
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