Fenton体系降解水中偶氮染料的研究  

Study on degradation of azo dye in aqueous solution by Fenton's reagent

作　　者：欧晓霞[1] 张凤杰[1] 宿燕[2] 马燕[1] 王崇[1] 刘赫[1] 周玉波[1] 

机构地区：[1]大连民族学院生命科学学院,大连116600 [2]大连理工大学化工学院,大连116024

出　　处：《环境工程学报》2010年第8期1735-1738,共4页Chinese Journal of Environmental Engineering

基　　金：国家自然科学基金资助项目(20907006);大连民族学院博士科研启动基金(20096105)

摘　　要：研究了Fenton体系对于水溶液中偶氮染料橙G(orange G,OG)的降解,反应30 min后,在[Fe2+]0=0.1mmol/L、[H2O2]0=10 mmol/L、pH=3.0的条件下,初始浓度为20 mg/L的OG的去除率达到99%以上。与H2O2相比,OG的降解速率随着Fe2+不同投加量的变化更为敏感。Fe2+和H2O2初始浓度较高时,反应过程中的Fe2+的浓度维持在一个较低的水平,OG的降解速率较快。腐殖酸对OG在Fenton体系中的降解影响表现出明显的阻碍作用,并且随着腐殖酸浓度的增加,抑制作用越来越大。The degradation of azo dye orange G（OG） in aqueous solution by Fenton＇s reagent was studied.After 30 min,the 99% removal of OG in water（pH=3.0） was achieved when the initial concentrations of Fe^2＋,H2O2 and OG were 0.1 mmol/L,10 mmol/L and 20 mg/L,respectively.The degradation of OG was more sensitive to the initial concentration of Fe（II） compared to that of H2O2.A relatively low concentration of Fe（II） was maintained during reaction process when Fe^2＋ and H2O2 were added with high concentration,and thus OG was degraded quickly.The OG degradation by Fenton＇s reagent was inhibited by the presence of humic acid（HA）,and the rate of OG removal decreased with increasing HA concentration.

关 键 词：FENTON 染料 腐殖酸 降解 

分 类 号：X703[环境科学与工程—环境工程]