表面改性超滤膜去除水中硝酸盐

IF 0.6 Q4 ENGINEERING, CIVIL

Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS Pub Date : 2014-07-04 DOI:10.13167/2014.8.8

M. Habuda-Stanić, M. Nujić, V. Santo

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引用次数: 2

摘要

由于土壤氮肥的广泛施用，天然水源中硝酸盐浓度升高是一个世界性的问题。本研究研究了三种市售聚醚砜(PES)超滤(UF)膜，它们具有不同的分子量(5、10和30 kDa)，我们用阳离子表面活性剂十六烷基吡啶氯对其进行改性，以提高它们对硝酸盐的去除效果。考察了这些膜的硝酸盐去除效率与初始硝酸盐浓度、pH和渗透通量的关系。5 kDa的超滤膜对硝酸盐的去除效果最好。

本文章由计算机程序翻译，如有差异，请以英文原文为准。

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NITRATE REMOVAL FROM WATER USING SURFACE-MODIFIED ULTRAFILTRATION MEMBRANES

Elevated nitrate concentrations in natural water sources are a worldwide concern due to the extensive levels of soil N-fertilization. This study investigates three commercially available polyethersulfone (PES) ultrafiltration (UF) membranes with different molecular weight cut-offs (5, 10, and 30 kDa), which we modified with a cationic surfactant, cetylpyridinium chloride to improve their nitrate removal. The nitrate removal efficiency of these membranes was examinated as functions of initial nitrate concentration, pH, and permeate flux. The best nitrate removal efficiency was obtained with a 5 kDa surface-modified UF membrane.

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来源期刊

Electronic Journal of the Faculty of Civil Engineering Osijek-e-GFOS ENGINEERING, CIVIL-

自引率

0.00%

发文量

审稿时长

24 weeks