用聚乙二醇-1000优化聚丙烯腈膜高效处理城市污水

IF 3.8 3区工程技术 Q2 ENGINEERING, CHEMICAL

Industrial & Engineering Chemistry Research Pub Date : 2025-03-28 DOI:10.1021/acs.iecr.5c00095

Mahesh Manikantan Sandhya, Animesh Jana, Akshay Modi

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引用次数: 0

摘要

研究了聚乙二醇（Mw: 1000 Da, PEG-1000）掺入聚丙烯腈（PAN）膜对城市污水强化处理的影响。表面功能分析证实了成功的整合，而形态学研究显示从指状腔（原始PAN膜）转变为含有PEG-1000的海绵状结构。PEG-1000浓度的增加增强了亲水性，保持了热稳定性，同时增加了表面粗糙度。然而，纯水通量略有下降。值得注意的是，在模拟和真实的城市污水中，掺有≥2 wt % PEG-1000的PAN膜的防污性能得到了显著改善，通量回收率为80%，而原始膜的回收率为73.8%。牛血清白蛋白（BSA）在所有膜上的排斥值超过99%。长期评估（长达10次循环）表明，含有2 wt % PEG-1000的膜具有优异的防污稳定性。这些结果表明，在城市污水处理中，加入2 wt % PEG-1000是提高PAN膜性能的最佳选择。

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Optimizing Polyacrylonitrile Membranes with Polyethylene Glycol-1000 for Efficient Municipal Wastewater Treatment

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Optimizing Polyacrylonitrile Membranes with Polyethylene Glycol-1000 for Efficient Municipal Wastewater Treatment

This study investigates the effect of polyethylene glycol (M_w: 1000 Da, PEG-1000) incorporation on polyacrylonitrile (PAN) membranes for enhanced municipal wastewater treatment. Surface functionality analysis confirmed successful integration, while morphological studies revealed a transformation from finger-like cavities (pristine PAN membrane) to a spongy structure with PEG-1000. Increased PEG-1000 concentration enhanced hydrophilicity and maintained thermal stability while increasing surface roughness. However, pure water flux decreased marginally. Remarkably, PAN membranes blended with ≥2 wt % PEG-1000 exhibited significant improvements in antifouling performance when tested with simulated and real municipal wastewater, achieving flux recovery values of >80% compared to 73.8% for pristine membranes. Bovine serum albumin (BSA) rejection values exceeded 99% across all membranes. Long-term evaluations (up to 10 cycles) demonstrated excellent antifouling stability for membranes containing 2 wt % PEG-1000. These findings suggest that incorporating 2 wt % PEG-1000 is optimal for enhancing PAN membrane performance in municipal wastewater treatment.

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来源期刊

Industrial & Engineering Chemistry Research 工程技术-工程：化工

CiteScore

7.40

自引率

7.10%

发文量

1467

审稿时长

2.8 months

期刊介绍： ndustrial & Engineering Chemistry, with variations in title and format, has been published since 1909 by the American Chemical Society. Industrial & Engineering Chemistry Research is a weekly publication that reports industrial and academic research in the broad fields of applied chemistry and chemical engineering with special focus on fundamentals, processes, and products.