芬顿氧化法处理水中酸性品红的研究  

Oxidation of acid magenta in aqueous solution by Fenton's reagent

作　　者：欧晓霞[1] 张凤杰[1] 王崇[1] 关东[1] 马丽娟[1] 阙丽华[1] 

机构地区：[1]大连民族学院生命科学学院,大连116600

出　　处：《环境工程学报》2010年第7期1453-1456,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：研究了酸性品红在Fenton体系中的降解过程,反应30 min后,在[Fe2+]0=0.06 mmol/L、[H2O2]0=0.3 mmol/L、pH=3、T=30℃的条件下,初始浓度为20 mg/L的酸性品红的去除率达到97%以上。升高反应温度,有利于Fenton体系中酸性品红的降解,但影响并不显著。根据不同温度下的速率常数,并结合Arrhenius方程求出了Fenton试剂降解酸性品红的反应活化能,仅为11.63 kJ/mol。C1?的存在对酸性品红在Fenton体系中的降解表现出明显的阻碍作用,并且随着C1?浓度的增加,抑制作用越来越大;SO24-和NO3-的存在也降低了Fenton试剂的氧化性能。The degradation of acid magenta in aqueous solution by Fenton＇s reagent was studied.After 30 min,the 97% removal of acid magenta in water（pH=3,T=30℃） was achieved when the initial concentrations of Fe^2＋,H2O2 and acid magenta were 0.06 mmol/L,0.3 mmol/L and 20 mg/L,respectively.Increasing the reaction temperature was beneficial for the degradation of acid magenta,but not obvious.Based on the Arrhenius equation,the activation energy（Ea） was calculated to be 11.63 kJ/mol from rate constants at different temperatures.The degradation of acid magenta by Fenton＇s reagent was inhibited by the presence of C1^–,and the rate of acid magenta removal decreased with increasing of the concentration of C1^–.The presence of SO4^2- and NO3^- also decreased the oxidative activity of Fenton＇s reagent.

关 键 词：芬顿 酸性品红 降解 

分 类 号：X703.1[环境科学与工程—环境工程]