光催化膜对水中腐植酸的去除及积垢机理  

Removal of humic acid from water and fouling mechanism by photocatalytic membrane

作　　者：饶瑞晔 毛竹简[1,2] 林靖靖 廖夏露 胡家朋 林皓 RAU Juiyeh;MAO Zhujian;LIN Jingjing;LIAO Xialu;HU Jiapeng;LIN Hao(Department of Ecology and Resource Engineering,Wuyi University,Wuyishan 354300,Fujian,China;Fujian Provincial Key Laboratory of Eco-Industrial Green Technology(Wuyi University),Wuyishan 354300,Fujian,China;Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry(Ningde Normal University),Ningde 352100,Fujian,China)

机构地区：[1]武夷学院生态与资源工程学院,福建武夷山354300 [2]福建省生态产业绿色技术重点实验室(武夷学院),福建武夷山354300 [3]福建省特色生物化工材料重点实验室(宁德师范学院),福建宁德352100

出　　处：《化工进展》2018年第9期3649-3656,共8页Chemical Industry and Engineering Progress

基　　金：国家自然科学基金(51406141);福建省教育厅项目(JA13321);福建省特色化工重点实验室项目(FJKL-FMBI201602);福建省生态产业绿色技术重点实验室项目(WYKF2018-9);大学生创新创业训练计划项目(201510397014)

摘　　要：利用湿式相转化方法制备TiO_2/聚苯砜(polyphenylsulfone,PPSU)/聚醚亚硫胺(polyetherimide,PEI)催化膜应用于水中腐植酸(humic acid,HAs)的去除及积垢机理研究。结果表明,随着亲水性PEI比例增加,光催化膜的纯水通量和HAs的过滤通量越大,去除效率越低;且随着光照时间的延长去除效率越趋于稳定,且有回复的现象。在0.2MPa操作压力下,制备的TiO_2/PPSU/PEI(1%/50%/50%)膜具有最佳的可逆阻抗力比例(Rc/Rt=48.24%);其渗透通量、HAs去除效率及反洗后通量分别为34.0L/(m^2·h)、63.2%及22.5L/(m^2·h),具有较佳的通量及HAs去除效率。The preparation of TiO2/polyphenylsulfone(PPSU)/polyetherimide(PEI)photocatalytic membrane by using wet phase transformation method was studied.The control of humic acid(HAs)and fouling mechanism from wastewater were also investigated.Results showed that the increasing of PEI ratio,water and filtration flux of humic acid were higher and the removal efficiency of humic acid was lower.With the extension of illumination time,the removal efficiencies were tended to stable and there was a recovery phenomenon.Under 0.2 MPa operating pressure,the prepared TiO2/PPSU/PEI photocatalytic membrane(1%/50%/50%)were the good reversible resistance ratio(Rc/Rt=48.24%),flux and HAs removal efficiency.The permeate flux,photocatalytic removal efficiency of HAs and backwash flux were 34.0L/(m2·h)、63.2%and 22.5L/(m2·h),respectively.

关 键 词：二氧化钛 催化膜 腐植酸 聚苯砜 聚醚亚硫胺 

分 类 号：X52[环境科学与工程—环境工程] TQ032[化学工程]