水体中N、Fe的存在形态对萘普生光解行为的影响  

Naproxen photodegradation under UV radiation in aqueous solution: Effect of different forms of nitrogen and iron

作　　者：黎展毅[1] 刘国光[1] 金小愉 谢艳[1] 郑从交 张鸣戈[1] 吴焕波[1] 

机构地区：[1]广东工业大学环境科学与工程学院,广州510006

出　　处：《环境科学学报》2017年第7期2623-2631,共9页Acta Scientiae Circumstantiae

基　　金：国家自然科学基金(No.21377031);广东省科技项目(No.2013B020800009)~~

摘　　要：研究了水环境中不同形态的无机氮(NO_3^-、NO_2^-、NH_4^+)和铁(Fe^(3+)、Fe^(2+))对萘普生(NPX)紫外光降解的影响.结果表明,NO_3^-、NO_2^-、Fe^(3+)和Fe^(2+)均抑制NPX的紫外光降解,抑制率随添加浓度的增加而增大;NH_4^+对NPX的紫外光降解基本没有影响.同时,模拟在水体中不同p E值下,不同形态无机氮和铁体系分别对NPX紫外光降解的复合影响.研究发现,在无机氮体系,复合状态下对NPX的紫外光降解存在拮抗作用;在铁体系,复合状态下对NPX的紫外光降解存在协同作用.This study investigates the photodegradation of naproxen in the aquatic environment under UV light and with different p E according to various nitrogen/iron forms. The results showed that NO_3^-、NO_2^-、Fe^（3＋）and Fe^（2＋）have inhibition effect for the photodegradation of naproxen,the inhibition effect will be higher when the concentration increases; NH_4~＋ has no effect on naproxen. different forms of nitrogen/iron have combined influences on photodegradation of naproxen when the p E changes. When more than one kind of form of nitrogen coexist in the aquatic environment,the antagonistic effect existed on the photodegradation of NPX,while iron is synergistic effect.

关 键 词：萘普生 无机氮 铁 UV PE 

分 类 号：X703[环境科学与工程—环境工程]