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Author:

王利颖 (王利颖.) | 石洁 (石洁.) | 王凯伦 (王凯伦.) | 关羽琪 (关羽琪.) | 郭瑾 (郭瑾.) (Scholars:郭瑾)

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PKU CSCD

Abstract:

采用碳纳米管改性PVDF中空纤维超滤膜以缓解膜污染.考察了CNTs的乙醇分散液浓度、CNTs尺寸和负载量对改性中空纤维膜的抗污染性能和改性膜内表面CNTs层稳定性的影响,分析了该改性膜对二级出水DOC、UV254的去除效果,并对改性膜出水的荧光特性进行了表征.结果表明,选用体积分数为50%的乙醇分散液、外径为30~50 nm碳纳米管、负载量为3 g·m-2时,制备的改性中空纤维膜CNTs层稳定,抗污染能力显著提高.与未改性膜相比,改性膜对二级出水DOC和UV254的去除率分别提高了37%和56%;且对二级出水中的腐殖类和蛋白质类物质去除能力明显增强.

Keyword:

碳纳米管 膜污染 二级出水 超滤膜 膜改性

Author Community:

  • [ 1 ] 北京工业大学环境与能源工程学院

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Source :

环境科学

Year: 2017

Issue: 01

Volume: 38

Page: 220-228

Cited Count:

WoS CC Cited Count: 0

SCOPUS Cited Count:

ESI Highly Cited Papers on the List: 0 Unfold All

WanFang Cited Count:

Chinese Cited Count:

30 Days PV: 16

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