[1]汪小尧,胡昱恺,郝秀娟,等.多酚网络涂覆纳滤膜的制备及截留小分子碳源性能[J].中国给水排水,2026,42(17):98-104.
　WangXiaoyao,HuYukai,HaoXiujuan,et al.Preparation of Polyphenol Network-coated Nanofiltration Membrane and Its Performance in Rejecting Small-molecule Organic Carbon Sources[J].China Water & Wastewater,2026,42(17):98-104.
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多酚网络涂覆纳滤膜的制备及截留小分子碳源性能

中国给水排水[ISSN:1000-4062/CN:12-1073/TU] 卷: 第42卷 期数: 2026年第17期 页码: 98-104 栏目: 出版日期: 2026-09-01
Title:
Preparation of Polyphenol Network-coated Nanofiltration Membrane and Its Performance in Rejecting Small-molecule Organic Carbon Sources
作者:
汪小尧1,2,3， 胡昱恺1， 郝秀娟1,2， 黄睿3， 史龙月4， 田家宇5
（1.内蒙古自治区土木工程绿色建造与智能运维重点实验室，内蒙古 呼和浩特 010051；2.哈尔滨工业大学 环境学院，黑龙江 哈尔滨 150090；3.广东粤海水务股份有限公司，广东 深圳 518021；4.内蒙古圣清科技有限公司，内蒙古 乌兰察布 013450；5.河北工业大学 土木与交通学院，天津 300401）
Author(s):
Wang　Xiaoyao1，2，3， Hu　Yukai1， Hao　Xiujuan1，2， Huang　Rui3， Shi　Longyue4， Tian　Jiayu5
（1. Inner Mongolia Key Laboratory of Green Construction and Intelligent Operation and Maintenance of Civil Engineering， Hohhot 010051， China； 2. School of Environment， Harbin Institute of Technology， Harbin 150090， China； 3. Guangdong Yuehai Water Co. Ltd.， Shenzhen 518021， China； 4. Inner Mongolia Shengqing Technology Co. Ltd.， Ulanqab 013450， China； 5. School of Civil and Transportation Engineering， Hebei University of Technology， Tianjin 300401， China）
关键词:
薄膜复合纳滤膜;  铁-单宁酸;  碳源回收;  分离机制
Keywords:
thin-film composite nanofiltration membrane;  Fe-tannic acid complex;  carbon source recovery;  separation mechanism
摘要:
针对有机废水生物处理中外加碳源成本较高、传统纳滤膜对废水中小分子有机碳源的截留性能有限、有机废水中碳源回收难以高效实现等问题，本研究将Fe3+与单宁酸（TA）络合形成的复合材料涂覆于薄膜复合（TFC）纳滤膜表面，并用于废水中小分子有机碳源的分离回收。结果表明，最优改性纳滤膜TFC-Fe-3（Fe3+与TA物质的量之比为3∶1）对Na2SO4的截留率可达99.81%；相比TFC纳滤膜，TFC-Fe-3改性膜对乙酸、丙酸、丁酸的截留率分别可提升17.47、17.17、13.48个百分点，显著提升了对小分子有机碳源的截留能力。通过探究不同工况条件下TFC-Fe-3膜对小分子有机碳源的分离效果，证实尺寸筛分效应与Donnan效应共同主导膜的分离性能。该改性膜有效克服了传统纳滤膜对小分子有机碳源截留的短板，可高效回收废水中的有机碳源。
Abstract:
To address the issues of high cost of external carbon sources in biological wastewater treatment, limited rejection performance of conventional nanofiltration (NF) membranes toward small-molecule organic carbon sources, and the difficulty in achieving efficient resource recovery of carbon sources from organic wastewater, this study fabricated a composite material by complexing Fe3+ with tannic acid (TA) and coated it onto the surface of thin-film composite (TFC) nanofiltration membranes for the separation and recovery of small-molecule organic carbon sources from wastewater. Experimental results showed that the optimally modified membrane, designated as TFC-Fe-3 (with a Fe3+ to TA molar ratio of 3∶1), achieved a Na2SO4 rejection rate as high as 99.81%. Compared with the unmodified TFC membrane, the TFC-Fe-3 membrane exhibited increases in rejection rates of 17.47 percentage point, 17.17 percentage point, and 13.48 percentage point for acetic acid, propionic acid, and butyric acid, respectively, demonstrating a significantly enhanced rejection capability toward small-molecule organic carbon sources. Systematic investigation of the separation performance of the TFC-Fe-3 membrane for small-molecule organic carbon sources under various operating conditions confirmed that the membrane’s separation performance was governed by the combined effects of size sieving and the Donnan effect. The modified membrane effectively overcomes the inherent limitation of conventional NF membranes in rejecting small-molecule organic carbon sources and enables efficient recovery of organic carbon sources from wastewater.
更新日期/Last Update: 2026-09-01