超声波促进Fenton法脱色甲基橙溶液的研究  

Study on Ultrasound-Assisted Decolorization of Methyl Orange with Fenton Reagent

作　　者：陶长元[1] 刘作华[1] 李晓红[2] 杜军[1] 司秀杰[1] 朱俊[1] 

机构地区：[1]重庆大学化学化工学院环境科学研究所,重庆400044 [2]重庆大学资源及环境科学学院教育部西南能矿资源开发与环境灾害控制重点实验室,重庆400044

出　　处：《环境科学》2005年第5期111-114,共4页Environmental Science

基　　金：国家自然科学基金资助项目(50334060);重庆大学应用基础研究资助项目

摘　　要：分别研究了超声波、Fenton试剂、超声波-Fenton试剂作用下甲基橙溶液的脱色和COD去除行为.结果表明,超声波单独作用甲基橙溶液几乎没有脱色效果;Fenton试剂单独作用400mg/L的甲基橙溶液30min,甲基橙色度去除率67.51%,COD去除率63.15%;而超声波-Fenton试剂时,溶液色度去除率86.91%,COD去除率80.32%.超声波与Fenton试剂对甲基橙溶液的脱色和COD去除有协同作用.Fenton试剂脱色强酸性甲基橙溶液是氧化反应,而在pH大于5时,是还原反应.Employed with ultrasound, Fenton reagent, ultrasound-Fenton methods, performance and mechanism of decolorization and COD removal were investigated for methyl orange. Results indicated that little decolorization phenomenon was observed with ultrasound solely. For 400mg/L methyl orange solution, 67.51% decolorization ratio and 63.15% COD removal ratio were obtained with Fenton reagent for 30min. Combined the same operation conditions with ultrasonic field, decolorization ratio and COD removal ratio are 86.91% and 80.32%, respectively. Ultrasound and Fenton reagent have synergistic action on degradation of methyl orange solution. It is oxidative reaction for methyl orange solution with Fenton reagent in strong acidic condition, and it is reduction process for the degradation when pH〉5.

关 键 词：超声波 甲基橙 FENTON试剂 

分 类 号：X703[环境科学与工程—环境工程]