电—Fenton法降解水中的亚甲基蓝效果实验  

Experiment of Methylene Blue Degradation Effect in Water by Electro-Fenton Process

作　　者：宋东宝 李俊峰[1,2] 杨玉麟 陶俊宏 王昭阳 赵纯 SONG Dongbao;LI Junfeng;YANG Yulin;TAO Junhong;WANG Zhaoyang;ZHAO Chun(College of Water Conservancy and Architecture Engineering,Shikezi University,Shikezi 832003,China;Key Laboratory of Modem Water Saving Irrigation Corps,Shihezi 832000,China;College of Earth and Environmental Sciences,Lanzhou University,Lanzhou 730000,China;Key Laboratory of the Ministry of Education of the Three Gorges Reservoir Area,Chongqing University,Low Carbon Green Building International Joint Research Center,Chongqing 400045,China)

机构地区：[1]石河子大学水利建筑工程学院,新疆石河子832003 [2]现代节水灌溉兵团重点试验室,新疆石河子832000 [3]兰州大学资源环境学院,甘肃兰州730000 [4]重庆大学三峡库区教育部重点实验室,低碳绿色建筑国际联合研究中心,重庆400045

出　　处：《水处理技术》2020年第1期89-93,共5页Technology of Water Treatment

基　　金：国家自然基金新疆联合基金重点项目(U1803244);国家重点研发计划水资源高效利用专项课题(2017YFC0404304);兵团重点领域科技攻关计划(2019AB035);石河子大学青年创新培育人才项目(CXPY201902)

摘　　要：采用电-Fenton法降解水中的亚甲基蓝,为研究pH与电压的影响,对H2O2的产生以及铁离子的循环再生进行了考察,并对电-Fenton、阳极氧化以及吸附作用对亚甲基蓝的去除效果进行比较。结果表明,随pH升高H2O2产量逐渐下降,随电压升高H2O2产量先上升后下降,在电压5 V时Fe^2+再生率可达76.75%。亚甲基蓝去除的适宜pH为3、电压为7V,在此条件下电解20 min,亚甲基蓝去除率可达97.8%。电-Fenton法可以有效去除亚甲基蓝,较电化学直接氧化去除率可提高31.6个百分点;而单独吸附对亚甲基蓝去除效果不显著,吸附20 min去除率仅9.88%。The methylene blue in water was degraded by electro-Fenton method,in order to research the influence of pH and voltage,the production of H2O2 and the regeneration of iron ions were studied.The removal effects of methylene blue by electro-Fenton,anode oxidation and adsorption were compared.The results showed that the yield of H2O2 decreased with the increase of pH.With the increase of voltage,the H2O2 yield increased first and then decreased,the regeneration rate of Fe^2+could reach 76.75%at 5 V.The optimum pH and voltage for methylene blue removal was 3 and 7 V respectively,electrolysis for 20 min under optimal conditions,the removal rate of methylene blue could reach 97.8%.The electro-Fenton method could effectively remove methylene blue,and the removal rate was 31.6 percent point higher than electrochemical oxidation.The single adsorption had no-significant effect for methylene blue removal,the removal rate was only 9.88%after 20 min adsorption.

关 键 词：电-FENTON 亚甲基蓝 H2O2 铁离子 

分 类 号：X791[环境科学与工程—环境工程]