铁碳微电解降解磺胺甲恶唑和卡马西平  

Degradation of sulfamethoxazole and carbamazepine by iron-carbon microelectrolysis

作　　者：马嘉敏 宋伟 张小磊 李继 MA Jiamin;SONG Wei;ZHANG Xiaolei;LI Ji(Harbin Institute of Technology, Shenzhen, 518000, China)

机构地区：[1]哈尔滨工业大学深圳研究生院

出　　处：《环境化学》2019年第5期985-990,共6页Environmental Chemistry

基　　金：国家科技重大专项项目中的水体污染控制与治理专项(2017ZX07401001);深圳市科创委应用示范课题(KJYY20171012140149523)资助~~

摘　　要：以两种典型人工合成有机物(磺胺甲恶唑和卡马西平)为主要研究对象,采用铁碳微电解法降解上述两种目标污染物,研究了铁碳质量比、反应时间、pH、铁投加量等因素对磺胺甲恶唑和卡马西平降解效果的影响.结果表明,pH=1,铁碳比为1∶1,铁投加量为80 g·L^-1时,磺胺甲恶唑的去除率最高,60 min几乎全部去除.pH=1,铁碳比为1∶4,铁投加量为80 g·L^-1时,卡马西平的去除率最高,60 min卡马西平去除率接近90%.在这过程中磺胺甲恶唑和卡马西平发生氧化还原反应,它们的氮被还原成氨氮.磺胺甲恶唑和卡马西平的降解符合假一级反应动力学.Iron-carbon microelectrolysis was employed to degrade two synthetic compounds sulfamethoxazole and carbamazepine. The effects of iron carbon mass ratio, reaction time, pH, iron dosing quantity and other factors on the degradation rate of sulfamethoxazole and carbamazepine were investigated. The results showed that sulfamethoxazole was completely removed within 60 minutes when pH=1,Fe∶C=1∶1,Fe=80 g·L^-1. The highest degradation efficiency of carbamazepine(90%) occurred at 60 minutes with pH=1, Fe∶C=1∶4,Fe=80 g·L^-1. Sulfamethoxazole and carbamazepine undergone redox reactions and the nitrogen was reduced to ammonia nitrogen. The degradation of sulfamethoxazole and carbamazepine was in accordance with pseudo first order reaction kinetics.

关 键 词：微电解 磺胺甲恶唑 卡马西平 药品及个人护理用品 

分 类 号：X52[环境科学与工程—环境工程]