铁铜微电解-Fenton联合工艺去除磺胺甲[口恶]唑和卡马西平  

Removal of sulfamethoxazole and carbamazepine by Fe-Cu microelectrolysis combined with Fenton process

作　　者：徐浩 张凡 于鑫 陈红[1,3] 薛罡 XU Hao;ZHANG Fan;YU Xin;CHEN Hong;XUE Gang(College of Environmental Science and Engineering,Donghua University,Shanghai 201600,China;Shanghai Environmental Protection Co.,Ltd.,Shanghai 201600,China;College of Life Sciences,Jinggangshan University,Ji’an 343000,China)

机构地区：[1]东华大学环境科学与工程学院,上海201600 [2]上海环境保护有限公司,上海201600 [3]井冈山大学生命科学学院,江西吉安343000

出　　处：《工业水处理》2025年第3期55-64,共10页Industrial Water Treatment

基　　金：国家自然科学基金面上项目(52070040)

摘　　要：对采用铁铜双金属微电解技术及铁铜双金属微电解-Fenton组合工艺去除水中磺胺甲[口恶]唑(SMZ)和卡马西平(CBZ)的效果及机理进行研究。考察了进水pH、反应时间、铁投加量和铜铁质量比等因素对铁铜双金属微电解降解SMZ及CBZ效果的影响,并通过响应面法优化了工艺条件。在此基础上考察了双氧水(H_(2)O_(2))投加量,Fenton反应时间对铁铜双金属微电解-Fenton组合工艺去除CBZ、SMZ效果的影响。结果表明,铁铜双金属微电解可以高效去除SMZ,当pH为2.61、反应时间为69.26 min、Fe投加量为70.57 g/L、铜铁质量比为4.15∶1时,SMZ的去除率接近100%,但单独的铁铜双金属微电解工艺对CBZ的去除率小于10%;铁铜双金属微电解-Fenton组合工艺对废水中的CBZ有较好的处理效果,Fenton工艺中H_(2)O_(2)最佳投加量为0.3 mL/L,最佳反应时间为60 min,在最优条件下对CBZ去除率可显著提高至88.2%;通过机理分析确定铁铜双金属微电解对有机污染物的去除以还原作用为主,铁铜双金属微电解-Fenton组合工艺对有机污染物的去除则是先进行还原后进行氧化。The removal effect and mechanism of sulfamethoxazole(SMZ)and carbamazepine(CBZ)were investigated by Fe-Cu bimetallic microelectrolysis and Fe-Cu bimetallic microelectrolysis in combination with the Fenton process.The impact of influent pH,reaction time,iron dosage and Cu-Fe mass ratio on the degradation of SMZ and CBZ by Fe-Cu bimetallic microelectrolysis were investigated,and the process conditions were optimized by response surface approach.On this basis,the effects of H_(2)O_(2)dosage and Fenton reaction time on the removal of CBZ and SMZ by Fe-Cu bimetallic microelectrolysis and Fenton combined process were investigated.The results revealed that the removal rate of SMZ was close to 100%when pH was 2.61,reaction time was 69.26 min,dosage of Fe was 70.57 g/L,Cu-Fe mass ratio was 4.15∶1,whereas the removal rate of CBZ was less than 10%by Fe-Cu bimetallic microelectrolysis.Fe-Cu bimetallic microelectrolysis and Fenton combined process had a better treatment effect on CBZ in wastewater.The optimal dosage of H_(2)O_(2)in Fenton process was 0.3 mL/L,and the optimal reaction time was 60 min.Under the optimal conditions,the CBZ removal rate could be significantly increased to 88.2%.Mechanism analysis confirmed that the removal of organic pollutants by the Fe-Cu bimetallic microelectrolysis methods mainly dominated by reduction,whereas the Fe-Cu bimetallic microelectrolysis and Fenton combined process was carried out by reduction followed by oxidation.

关 键 词：铁铜双金属微电解 FENTON氧化 磺胺甲[口恶]唑 卡马西平 响应面分析 

分 类 号：X703[环境科学与工程—环境工程]