Fenton氧化-中和沉降处理高浓度工业废水研究  

Study on Treatment of High Concentration Industry Wastewater by Fenton Oxidation and Flocculation Setting

作　　者：白翠萍[1,2] 郭栋[1] 

机构地区：[1]湖北理工学院,湖北黄石435003 [2]湖北理工学院矿区环境污染控制与修复湖北省重点实验室,湖北黄石435003

出　　处：《湖北理工学院学报》2017年第2期14-18,共5页Journal of Hubei Polytechnic University

基　　金：湖北省教育厅科学技术研究项目(项目编号:B2015088);湖北理工学院引进人才项目(项目编号:13xjz06L)

摘　　要：以高浓度工业废水为研究对象,采用Fenton技术与中和沉降相结合的方法处理废水。探讨了Fenton反应中的H_2O_2量、H_2O_2与Fe^(2+)的最佳摩尔比值、pH值以及反应时间对COD去除率的影响,得出最佳的反应条件。结果表明,Fenton反应中,当H_2O_2∶COD=4∶1,Fe^(2+)∶H_2O_2=1∶4,pH=3,反应时间为40 min时,COD去除率最高达到72.9%。Fenton反应后通过加入Ca(OH)2产生中和反应,中和反应的pH值对COD的去除率有一定的影响,当反应溶液pH值调至3~5时,中和沉降效果最好,COD的去除率最高为56.96%。Fenton法与中和反应相结合,COD的最佳去除率能够达到87.75%。By taking high concentration wastewater as an example, this paper mainly introduced the method combining Fenton technology and flocculation setting to treat wastewater. The effect of Ha Oz concentration, the molar ration of Fe^2＋ and H2O2, pH and reaction time on COD removal were investigated. The optimum condition was obtained. In Fenton reaction, when H2O2 ： COD = 4： 1, Fe^2＋： H20a = 1 ： 4, pH = 3, the reaction time was 40 mins, the maximum COD removal rate amounted to 72.9. After Fenton reaction, the neutralization reaction was produced by adding Ca（ OH）2 ,pH value exerts certain influence on removal rate of COD. When pH was 3 - 5, the best result of flocculation setting was achieved, the maximum COD removal was 56.96%. The COD removal can reach 87.75% when the Fenton oxidation was combined with flocculation setting.

关 键 词：FENTON氧化 中和沉降 高浓度废水 

分 类 号：X703.1[环境科学与工程—环境工程]