Experimental investigation of organic fouling mitigation in membrane filtration and removal by magnetic iron oxide particles

IF 0.8 4区工程技术 Q4 ENGINEERING, CHEMICAL

Membrane Water Treatment Pub Date : 2020-01-01 DOI:10.12989/MWT.2020.11.3.223

Jae-Ouk Jung, Mark Sibag, Bora Shind, Jinwoo Cho

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引用次数: 3

Abstract

Here magnetic iron oxide particles (MIOPs) were synthesized under atmospheric air and which size was controlled by regulating the flow rate of alkali addition and used for efficient removal of bovine serum albumin (BSA) from water. The MIOPs were characterized using field-emission scanning electron microscopy (FE-SEM), Fourier transformation-Infrared spectroscopy (FT-IR), and vibrating sample magnetometer (VSM). The results revealed a successful preparation of the MIOPs. The removal efficiency for BSA using MIOPs was found to be about 100% at lower concentrations (≥ 10 mg/L). The maximum adsorption of 64.7 mg/g for BSA was achieved as per the Langmuir adsorption model. In addition, microfiltration membrane for removal of BSA as model protein organic foulant is also studied. The effect of various MIOPs adsorbent sizes of 210, 680, and 1130 nm on the absorption capacity of BSA was investigated. Water permeability of the BSA integrated with the smallest size MIOPs membrane was increased by approximately 22% compared by the neat BSA membrane during dead-end filtration. Furthermore, the presence of small size MIOPs were also effective in increasing the permeate flux.

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磁性氧化铁颗粒膜过滤去除有机污染的实验研究

本文在常压条件下合成了磁性氧化铁颗粒(MIOPs)，通过调节加碱流速来控制其大小，并将其用于水中牛血清白蛋白(BSA)的高效去除。采用场发射扫描电镜(FE-SEM)、傅里叶变换红外光谱(FT-IR)和振动样品磁强计(VSM)对其进行了表征。结果表明，MIOPs的制备是成功的。在较低浓度(≥10 mg/L)下，MIOPs对BSA的去除率约为100%。Langmuir吸附模型对牛血清白蛋白的最大吸附量为64.7 mg/g。此外，还研究了微滤膜去除BSA作为模型蛋白质有机污染物。考察了210、680和1130 nm不同尺寸的MIOPs吸附剂对牛血清白蛋白吸附量的影响。在终端过滤过程中，与纯BSA膜相比，与最小尺寸的MIOPs膜结合的BSA膜的透水性提高了约22%。此外，小尺寸MIOPs的存在也有效地增加了渗透通量。

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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来源期刊

Membrane Water Treatment ENGINEERING, CHEMICAL-WATER RESOURCES

CiteScore

1.90

自引率

30.00%

发文量

审稿时长

>12 weeks

期刊介绍： The Membrane and Water Treatment(MWT), An International Journal, aims at opening an access to the valuable source of technical information and providing an excellent publication channel for the global community of researchers in Membrane and Water Treatment related area. Specific emphasis of the journal may include but not limited to; the engineering and scientific aspects of understanding the basic mechanisms and applying membranes for water and waste water treatment, such as transport phenomena, surface characteristics, fouling, scaling, desalination, membrane bioreactors, water reuse, and system optimization.