非金属掺杂活性碳纤维电化学处理模拟印染废水  

Electrochemical treatment of simulated dyeing wastewater with nonmetal-doped activated carbon fiber

作　　者：郑华 陈泉源[1,2,3] 卢钧 刘晓琛 伏明浩 ZHENG Hua;CHEN Quanyuan;LU Jun;LIU Xiaochen;FU Minghao(School of Environment Science and Engineering,Donghua University,Shanghai 201620,China;Shanghai Institution ofPollution Control and Ecological Security,Shanghai 200092,China;State Environmental Protection Engineering Center forPollution Treatment and Control in Textile Industry,Shanghai 201620,China)

机构地区：[1]东华大学环境科学与工程学院,上海201620 [2]上海市污染防治与生态安全研究所,上海200092 [3]国家环保工程纺织工业污染治理工程中心,上海201620

出　　处：《化工环保》2022年第4期415-420,共6页Environmental Protection of Chemical Industry

基　　金：国家重点研究发展计划项目(2019YFC0408503)。

摘　　要：分别采用磷酸、硼酸、尿素掺杂改性活性碳纤维毡(ACF)(记为PACF、BACF和NACF),研究了改性前后ACF电极的表观结构及电化学性能。结果表明,PACF的孔隙率和比表面积增大,O—P等含氧基团增多,出现更多活性位点,电催化活性增强。以PACF为阴极,采用电化学法处理含活性红X-3B的模拟印染废水。在废水pH=3.0、Na_(2)SO_(4)投加量为50 mmol/L、Fe^(2+)投加量为0.60 mmol/L、电流密度为20 mA/cm^(2)的条件下,反应180 min后,废水脱色率达100%,UV_(254)和COD去除率分别为97.13%和99.02%。重复使用5次后,PACF的性能仍好于ACF。The activated carbon fiber felt(ACF)was modified by doping with phosphoric acid,boric acid and urea,respectively(denoted by PACF,BACF and NACF).The apparent structure and chemical properties of the ACF electrode before and after modification were studied.The results show that the porosity,the specific surface area,the O-P and other oxygen-containing groups and the active site of PACF are increased,and the electro-catalytic activity of PACF is improved.Using PACF as cathode,the simulated dyeing wastewater containing reactive red X-3B was treated by electrochemical method.Under the optimal conditions of pH=3.0,Na_(2)SO_(4)amount 50 mmol/L,Fe^(2+)amount 0.6 mmol/L,current density 20 mA/cm^(2)and reaction time 180 min,the decolorization rate of the wastewater reaches 100%,and the removal rate of UV_(254) and COD reach 97.13%and 99.02%,respectively.After reused for 5 times,the performance of PACF is still better than that of ACF.

关 键 词：非金属掺杂 电FENTON法 活性碳纤维毡 印染废水 

分 类 号：X703.1[环境科学与工程—环境工程]