AOS联合感应电芬顿去除土壤中荧蒽的效果  

Removal Efficiency of Fluoranthene in Soil by Induction-Electro-Fenton Combined with AOS

作　　者：翟俊[1] 李达彦 ZHAI Jun;LI Da-yan(School of Urban Construction&Environmental Engineering,Chongqing University,Chongqing 400030,China)

机构地区：[1]重庆大学城市建设与环境工程学院,重庆400030

出　　处：《中国给水排水》2020年第11期87-90,96,共5页China Water & Wastewater

摘　　要：以铁片为感应阳极、钢片为阴极和阳极构建感应电芬顿体系,研究了添加α-烯基磺酸钠(AOS)表面活性剂与感应电芬顿法联用技术对土壤中典型的多环芳烃(PAHs)污染物——荧蒽的原位去除效果。试验结果表明,在反应体系中添加高于临界胶束浓度(CMC)的AOS能够提高电化学法去除土壤中荧蒽的效果。感应电芬顿体系能够有效减小电场分布的土体空间上荧蒽去除率的差异。添加4倍CMC的AOS溶液能够提高感应电芬顿法对荧蒽的去除效果,其对荧蒽的平均去除率可以达到54.28%,明显高于传统电解法的去除率(28.84%)和感应电芬顿法的去除率(46.53%)。An induction-electro-Fenton system was built with iron and steel as inductive anode and cathode materials,and in situ removal efficiency of fluoranthene(one of the typical PAHs pollutants in soil)by adding sodium alpha-olefin sulfonate(AOS)as an anionic surfactant combined with inductionelectro-Fenton method was explored.The addition of AOS higher than the critical micelle concentration(CMC)in the system could improve the efficiency of the electrochemical method in removing fluoranthene from soil.The induction-electro-Fenton system could effectively reduce the differences of fluoranthene removal efficiency in soil space with electric field distribution.The induction-electro-Fenton system added with AOS solution of 4 times CMC could improve the removal efficiency of fluoranthene.The average removal efficiency of fluoranthene was 54.28%,which was significantly higher than that of traditional electrolysis(28.84%)and induction-electro-Fenton method(46.53%).

关 键 词：土壤修复 荧蒽 感应电芬顿 α-烯基磺酸钠 

分 类 号：TU992[建筑科学—市政工程]