磁性阴离子交换树脂工艺去除水中双氯芬酸钠的特性  

Characteristics of Process of Magnetic Ion Exchange Resin for Diclofenac Sodium Removal in Water

作　　者：陆宇奇 归谈纯[1,2] 高乃云[1] 鲁仙 Lu Yuqi Gui Tanchun Gao Naiyun Lu Xian(State Key Laboratory of Pollution Control and Resource Reuse, Tongji University, Shanghai 200092,China Tongji Architectural Design （group） Co.,Ltd. ,Shanghai 200092, China)

机构地区：[1]同济大学污染控制与资源化研究国家重点实验室,上海200092 [2]同济大学建筑设计研究院(集团)有限公司,上海200092

出　　处：《净水技术》2017年第5期48-52,共5页Water Purification Technology

基　　金：国家水体污染控制与治理科技重大专项(2012ZX07403-001;2012ZX07403-002;2008ZX07421-002);国家自然科学基金资助项目(51178321);高等学校博士点基金资助项目(20120072110050)

摘　　要：药品与个人护理用品中的双氯芬酸钠在水体环境中不断富集,对生态系统造成了潜在威胁。研究了磁性阴离子交换树脂MIEX对双氯芬酸钠的吸附,考察了吸附过程的影响因素、动力学和热力学。结果表明,溶液中性、搅拌速度≥250 r/min、反应时间≥90 min、不含其他无机阴离子时,树脂吸附效率最高,对双氯芬酸钠的去除率可达96.1%。按Langmuir和Freundlich吸附等温方程拟合结果,可初步推算该吸附过程为吸热过程。Diclofenac sodium is a typical substance used for composition of pharmaceutical and personal care products （ PPCPs ） . The adsorption process of diclofenac sodium to magnetic ion exchange resin （MIEX） was investigated, and the influencing factors , kinetics and thermodynamics were studied. Results showed that the diclofenac sodium reduced 96.1% by reaction with MIEX, while the solution was neutral, stirring speed≥250 r/min, reaction time ≥90 min and other inorganic anions was absent. According to Langmuir and Freundlich isothermal adsorption equation fitting results, it could be preliminary calculated that the adsorption process was endothermic process.

关 键 词：磁性阴离子交换树脂 药品与个人护理用品 双氯芬酸钠 动力学 热力学 

分 类 号：X52[环境科学与工程—环境工程]