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首页> 外文期刊>Desalination: The International Journal on the Science and Technology of Desalting and Water Purification >Comparative study of anion polyacrylamide (APAM) adsorption-related fouling of a PVDF UF membrane and a modified PVDF UF membrane
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Comparative study of anion polyacrylamide (APAM) adsorption-related fouling of a PVDF UF membrane and a modified PVDF UF membrane

机译：聚偏二氟乙烯超滤膜与改性聚偏二氟乙烯超滤膜的阴离子聚丙烯酰胺吸附相关结垢的比较研究

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摘要

The high-molecuiar-weight anionic polyacrylamide (6880 kDa) adsorption related fouling of a virgin PVDF membrane (OM) and a modified PVDF membrane (MM) were investigated via analysis of particle size distribution, structure of membranes, influencing factors, SEM, and ATR-FTIR. The purpose of this paper is to better understand the mass transport characteristics in the adsorption system of APAM and two kinds of membranes. The adsorption of this kind of anionic polyacrylamide conformed to the Langmuir-Freundlich model, and the fitting R~2values were 0.9657, 0,9720 for OM and MM, respectively. The donafion rate caused by static adsorption on the membrane fouling was not very big, and the relative flux (RF) of OM and MM was about 0,89 and 0.72, respectively, SEM and ATR-FTIR evidence was found to suggest that this APAM-membrane adsorption was mainly driven by micro-porous structure, while nano-particles could be another important factor for its physical and chemical interactions.
机译：通过分析粒径分布，膜结构，影响因素，SEM和SEM，研究了原始PVDF膜（OM）和改性PVDF膜（MM）的高分子量阴离子聚丙烯酰胺（6880 kDa）吸附相关污垢。 ATR-FTIR。本文的目的是更好地了解APAM和两种膜在吸附系统中的传质特性。这种阴离子聚丙烯酰胺的吸附符合Langmuir-Freundlich模型，OM和MM的拟合R〜2值分别为0.9657、0.972。静态吸附导致膜污染的迁移率不是很大，OM和MM的相对通量（RF）分别约为0.89和0.72，SEM和ATR-FTIR证据表明该APAM膜吸附主要由微孔结构驱动，而纳米颗粒可能是其物理和化学相互作用的另一个重要因素。

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