Fenton试剂脱除模拟印染废水色度的研究  

A Study of Fenton Reagent Decoloring Printing and Dyeing Simulant Wastewater

作　　者：张永利[1] 

机构地区：[1]韩山师范学院化学系生态环境研究所,广东潮州521041

出　　处：《韩山师范学院学报》2008年第6期57-61,共5页Journal of Hanshan Normal University

基　　金：沈阳市科技攻关项目(1053095-4-05);广东省韩山师范学院博士启动项目(BS200709)

摘　　要：以亚甲蓝水溶液做模拟印染废水,采用Fenton试剂氧化法对其进行处理,以水样吸光度作为评价指标,利用单因素优化及正交实验法,对Fenton试剂用量、反应时间和入水pH进行了系统的研究.实验结果表明,Fenton试剂氧化脱除模拟印染废水色度的效果明显,水样脱色率达到99%以上;随着Fenton试剂用量的增加以及反应时间的延长,水样色度去除率提高,适宜的Fenton试剂用量及反应时间分别为5mL试剂/25 mL水样、30 min;入水pH存在适宜值4,在入水pH由4降低到3和由4升高到6的过程中,水样色度去除呈现降低的趋势;Fenton试剂氧化模拟印染废水中,3因素影响大小顺序为:反应时间>Fenton试剂用量>入水pH.Methylene Blue watery solution was selected as printing and dyeing simulant wastewater, then it was disposed by Fenton oxidation technology, and the color removal rate was selected as evaluated index. By the methods of single factor, analysis and orthogonal tests, the Fenton reagent dosage, reaction time and initial pH was researched by tile numbers. The experiments results showed that the color removal rates of water sample increased with the increase of Fenton reagent dosages and with the extendity of reaction time, and the fitting Fenton reagent dosage and reaction time were 5 mL reagent /25 mL water sample and 30 min respectively. As for the initial water pH, the fitting value was 4, and color removal rates of water sample fell in the course of the pH shifting from 4 to 3 and from 4 to 6. In the course of Fenton reagent oxidizing wastewater; And at the optimized conditions, the color removal rate of water sample was removed to 99%; The color removal rates of water sample were not affected obviously by the every level of the three factors, and the effect sequence of the three factors was arranged as follows： reaction time〉Fenton reagent dosage〉initial water pH.

关 键 词：FENTON试剂 模拟印染废水 亚甲蓝 吸光度 脱色率 

分 类 号：X703[环境科学与工程—环境工程]