化工进展 ›› 2018, Vol. 37 ›› Issue (09): 3649-3656.DOI: 10.16085/j.issn.1000-6613.2017-2663

• 资源与环境化工 • 上一篇    下一篇

光催化膜对水中腐植酸的去除及积垢机理

饶瑞晔1,2,3, 毛竹简1,2, 林靖靖1, 廖夏露1, 胡家朋1,2, 林皓1,2   

  1. 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
  • 收稿日期:2017-12-25 修回日期:2018-01-09 出版日期:2018-09-05 发布日期:2018-09-05
  • 通讯作者: 饶瑞晔(1981-),男,副教授,从事环境功能材料及污染治理与控制研究。
  • 作者简介:饶瑞晔(1981-),男,副教授,从事环境功能材料及污染治理与控制研究。E-mail:jyrau@wuyiu.edu.cn。
  • 基金资助:
    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)及大学生创新创业训练计划项目(201510397014)。

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

RAU Juiyeh1,2,3, MAO Zhujian1,2, LIN Jingjing1, LIAO Xialu1, HU Jiapeng1,2, LIN Hao1,2   

  1. 1 Department of Ecology and Resource Engineering, Wuyi University, Wuyishan 354300, Fujian, China;
    2 Fujian Provincial Key Laboratory of Eco-Industrial Green Technology(Wuyi University), Wuyishan 354300, Fujian, China;
    3 Fujian Provincial Key Laboratory of Featured Materials in Biochemical Industry(Ningde Normal University), Ningde 352100, Fujian, China
  • Received:2017-12-25 Revised:2018-01-09 Online:2018-09-05 Published:2018-09-05

摘要: 利用湿式相转化方法制备TiO2/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TiO2/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/(m2·h)、63.2%及22.5L/(m2·h),具有较佳的通量及HAs去除效率。

关键词: 二氧化钛, 催化膜, 腐植酸, 聚苯砜, 聚醚亚硫胺

Abstract: 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.

Key words: titanium dioxide (TiO2), photocatalytic membrane, humic acid (HAs), polyphenylsulfone (PPSU), polyetherimide (PEI)

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