Fe-Mn/ACF复合电极在生物-电芬顿系统中处理活性艳蓝KN-R  

Treatment of Reactive Brilliant Blue KN-R using bio-electro-Fenton system with composite Fe-Mn/ACF electrode

作　　者：许东伟[1] 徐畅[2] 严群[1] 

机构地区：[1]江南大学环境与土木工程学院,无锡214122 [2]靖江市环境监测站,泰州224500

出　　处：《环境工程学报》2017年第5期2654-2659,共6页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(51508230);科技部水体污染控制与治理科技重大项目(2011ZX07301-002);江苏省产学研前瞻性联合研究项目(BY2016022-02)

摘　　要：制备了高活性的Fe-Mn/ACF复合电极,并通过扫描电子显微镜(SEM)和能谱(EDS)对其微观结构和组成成分进行了表征。随后将其置于生物-电芬顿反应器中,研究其催化性能以及在不同初始pH和浓度条件下对水溶液中活性艳蓝KN-R的去除效果。结果表明:制备的Fe-Mn/ACF复合电极具有较高的催化活性。在pH为5.0、初始质量浓度为30 mg·L^(-1)时,反应120 min后的去除率能达到95.6%,且在较广的pH范围内都有较高的活性。此外,该电极具有良好的稳定性,在循环12次以后,系统对KN-R的去除率仍然能达到81.1%。因此,生物-电芬顿系统在去除染料废水方面具有较好的应用前景。In this study,the composite Fe-Mn/ACF electrode was prepared,and then characterized by scanning electron microscopy（SEM） and energy disperse spectroscopy（EDS） for its microstructure and composition.After that,it was adopted into a bio-electro-Fenton system as a heterogeneous Fenton catalyst provider without external power supply,so as to investigate its catalytic performance on the removal of Reactive Brilliant Blue KN-R in aqueous solution at different initial pH and concentration,respectively.The results showed that the prepared composite Fe-Mn/ACF electrode had higher catalytic activity,and the degradation efficiency could reach 95.6% at the condition of initial pH of 5.0 and initial concentration of 30 mg·L^（-1） after 120 min.Besides,a higher activity could also be obtained using the Fe-Mn/ACF facilitated system in a wide pH range.Moreover,the electrode exhibited better stability with the minimum removal efficiency reached 81.1% after twelve repeated batches of KN-R removal.Therefore,the bio-electro-Fenton system with composite Fe-Mn/ACF electrode might exert promising application prospect for dye wastewater treatment.

关 键 词：生物电芬顿 Fe-Mn/ACF复合电极 活性艳蓝KN-R 去除 

分 类 号：X703[环境科学与工程—环境工程]