改性粉煤灰对甲基橙废水的电化学氧化  

The Application of the Modified fly ash in Electrochemical Treatment to methyl Orange Wastewater

作　　者：黄晓丽[1] 马红竹[1] 王静[1] 何文妍[1] 余婕[1] 王珊珊[1] 

机构地区：[1]陕西师范大学化学与化工学院,陕西西安710062

出　　处：《粉煤灰》2013年第5期1-4,6,共5页Coal Ash China

基　　金：中央高校基本科研业务费专项基金资助(GK 201302013)

摘　　要：以酸和碱为改性剂,制备改性粉煤灰。考察了不同反应条件改性粉煤灰作为粒子电极对甲基橙染料废水脱色率的影响。试验结果表明:在室温下反应时间为15 min、甲基橙初始浓度为100 mg/L、改性剂用量为10 g/L、电流密度为95 mA/cm2、0.48 g NaCl的最佳条件下,甲基橙的脱色率高达96.21%;在最佳反应条件下电解65 min,COD去除率可达76.8%。Modified fly ash was prepared with acid and alkali as modifier. The influence of modified fly ash as a particle electrode at different reaction conditions on methyl orange dye wastewater decolorizing rate. The results showed that the methyl orange decolorizing rate was up to 96.21% under the conditions of room temperature, 15min reaction time, initial methyl orange concentration for 100 mg/L, modification agent for 10 g/L, current density for 95 mAcm-2, 0.48g NaC1. COD removal rate can reach to 76.8% when electrolyzed 65min under the optimum reaction condition.

关 键 词：改性粉煤灰 甲基橙 电化学 废水处理 

分 类 号：X701[环境科学与工程—环境工程]