EDTA络合亚铁离子活化过硫酸盐降解甲基橙  

EDTA complexed ferrous ion activated persulfate degraded methyl orange

作　　者：李江 毕佳欣 韩晔娇 Li Jiang;Bi Jiaxin;Han Yejiao(Taiyuan Institute of Technology,Department of Chemistry and Chemical Engineering,Taiyuan 030008,China)

机构地区：[1]太原工业学院化学与化工系,山西太原030008

出　　处：《煤炭与化工》2020年第12期147-150,共4页Coal and Chemical Industry

摘　　要：以甲基橙模拟染料废水,用EDTA络合Fe(Ⅱ)活化过硫酸盐形成SO4-·自由基来降解甲基橙。通过实验研究表明:初始过硫酸钠的浓度为4 mmol/L、[FeY]2-溶液浓度为1.5 mmol/L、反应温度为45℃时,甲基橙(10 mg/L)的降解率最高可到达98.4%;同时降解率会随着溶液酸度升高而增大。Methyl orange was used to imitate dye wastewater,and EDTA-Fe(Ⅱ)activated sodium persulfate to form sulfate free radicals to degrade methyl orange.The results showed that the initial concentration of Na2S2O8 was 4 mmol/L,the concentration of[FeY]2-was 1.5 mmol/L,the reaction temperature was 45℃,the degradation rate of methyl orange(10 mg/L)was the highest,reaching 98.4%.the degradation rate of methyl orange could be increased by raising acidity of solution.

关 键 词：EDTA 螯合Fe(Ⅱ) 过硫酸盐 甲基橙 

分 类 号：X788[环境科学与工程—环境工程]