具有可持续抗污染性能的无羧基聚酰胺反渗透膜处理工业焦炭废水

IF 12.4 1区环境科学与生态学 Q1 ENGINEERING, ENVIRONMENTAL

Water Research Pub Date : 2025-03-13 DOI:10.1016/j.watres.2025.123495

Yongkai Xu, Shuang Hao, Dingxian Jia, Yiwen Qin, Jianxiao Wang, Jie Gao, Jun Xiao, Yunxia Hu

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引用次数: 0

摘要

聚酰胺（PA）反渗透（RO）膜中的羧基对污染和结垢起着重要作用，阻碍了RO在实际应用中的可持续运行。在此，我们开发了一种新的界面聚合（IP）策略，以精细地设计无羧基的PA分子结构，并显着提高反渗透膜的抗污染/抗结垢性。在表面活性剂苯扎氯铵（BAC）的辅助下，扩散的间苯二胺（MPD）和甘油（GLY）完全消耗了界面上的三甲基氯（TMC）。制备的无羧基反渗透膜在处理真实焦炭废水时，在污染和清洗的5个循环中，具有低通量下降率和高通量回收率的持续抗污染性能，超过了报道的抗污染膜和著名的商用抗污染反渗透膜（杜邦FilmTec™CR100）。这项工作为精确定制具有可持续防污性能的PA - RO膜的分子结构提供了一些见解。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

Carboxyl-free polyamide reverse osmosis membrane with sustainable anti-fouling performance in treating industrial coke wastewater

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Carboxyl-free polyamide reverse osmosis membrane with sustainable anti-fouling performance in treating industrial coke wastewater

Carboxyl groups in polyamide (PA) reverse osmosis (RO) membrane contribute significantly to fouling and scaling, hindering the sustainable operation of RO in practical applications. Herein, we developed a novel interfacial polymerization (IP) strategy to finely engineer the molecular structure of PA with no carboxyl groups, and to significantly enhance RO membrane fouling/scaling-resistance. During IP, trimesoyl chloride (TMC) at the interface was consumed completely by the diffused m-phenylenediamine (MPD) and glycerol (GLY) under the assistance of benzalkonium chloride (BAC) surfactant. The fabricated RO membrane with no carboxyl groups exhibits sustainable anti-fouling performance with low flux decline ratios and high flux recovery ratios during the five cycles of fouling and cleaning when treating real coke wastewater, surpassing the reported anti-fouling membranes and the renowned commercial fouling-resistant RO membrane (DuPont FilmTec™ CR100). This work provides some insights to precisely tailor the molecular structure of PA RO membrane with sustainable anti-fouling performance.

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来源期刊

Water Research 环境科学-工程：环境

CiteScore

20.80

自引率

9.40%

发文量

1307

审稿时长

38 days

期刊介绍： Water Research, along with its open access companion journal Water Research X, serves as a platform for publishing original research papers covering various aspects of the science and technology related to the anthropogenic water cycle, water quality, and its management worldwide. The audience targeted by the journal comprises biologists, chemical engineers, chemists, civil engineers, environmental engineers, limnologists, and microbiologists. The scope of the journal include: •Treatment processes for water and wastewaters (municipal, agricultural, industrial, and on-site treatment), including resource recovery and residuals management; •Urban hydrology including sewer systems, stormwater management, and green infrastructure; •Drinking water treatment and distribution; •Potable and non-potable water reuse; •Sanitation, public health, and risk assessment; •Anaerobic digestion, solid and hazardous waste management, including source characterization and the effects and control of leachates and gaseous emissions; •Contaminants (chemical, microbial, anthropogenic particles such as nanoparticles or microplastics) and related water quality sensing, monitoring, fate, and assessment; •Anthropogenic impacts on inland, tidal, coastal and urban waters, focusing on surface and ground waters, and point and non-point sources of pollution; •Environmental restoration, linked to surface water, groundwater and groundwater remediation; •Analysis of the interfaces between sediments and water, and between water and atmosphere, focusing specifically on anthropogenic impacts; •Mathematical modelling, systems analysis, machine learning, and beneficial use of big data related to the anthropogenic water cycle; •Socio-economic, policy, and regulations studies.