净水技术2017，Vol.36Issue(9)：39-42,4.DOI:10.15890/j.cnki.jsjs.2017.09.008
高铁酸钾对水中磺胺甲噁唑的去除效果
Removal Efficiency of Sulfamethoxazole in Aqueous Solution by Using of Potassium Ferrate
摘要
Abstract
Aqueous reaction of potassium ferrate with sulfamethoxazole is introduced,which is investigated for evaluating the effects of ferrate dosage,pH value and reaction time on removal of sulfamethoxazole.Results indicate that sulfamethoxazole can be removed by ferrate efficiently.At a pH value of 7.0,91.5％ of 0.02 mmol/L sulfamethoxazole is removed after 10 min oxidation by dosing 0.1 mmol/L potassium ferrate.Sulfamethoxazole removal efficiency and reaction rate increase with the increasing dose of ferrate.The pH value of the solution has a great influence on the oxidation of sulfamethoxazole,and the reaction performs well in neutral and weak acid condition.Under different pH conditions,the effect of reaction time on sulfamethoxazole removal efficiency is obviously different.At pH value ＜ 7.0,although oxidative ability of ferrate is high,the ferrate is highly unstable.Therefore,reaction rate is fast and reaction time is short.Oxidative ability of the ferrate decreases and the stability increases with the increase of pH value.As a result,at pH value ＞7.0,reaction rate is much slower and reaction time is longer than that at pH value ＜7.0.关键词
高铁酸钾/磺胺甲噁唑/pH/去除率Key words
potassium ferrate/sulfamethoxazole/pH value/removal rate分类
建筑与水利引用本文复制引用
马艳,田晓冬,高乃云,姜蕾,王铮..高铁酸钾对水中磺胺甲噁唑的去除效果[J].净水技术,2017,36(9):39-42,4.基金项目
国家科技重大专项资助(2012ZX07403-001,2012ZX07403-002) （2012ZX07403-001,2012ZX07403-002）
上海市科委重点项目(15DZ1205701) （15DZ1205701）
