结垢
红外光谱学
膜
红外线的
材料科学
分辨率(逻辑)
多元微积分
分析化学(期刊)
光谱学
化学工程
化学
色谱法
光学
有机化学
物理
计算机科学
控制工程
工程类
人工智能
量子力学
生物化学
作者
Dongdong Chen,Yimin Zhao,Xiaoning Lu,Hu Ding,Xu Zhang,Zhiming Ren,Jiang Meng,Shu-Ping Li,Junling Yang,Mingchao Zhu
出处
期刊:Journal of Engineering Research and Reports
[Sciencedomain International]
日期:2024-10-16
卷期号:26 (10): 285-296
标识
DOI:10.9734/jerr/2024/v26i101306
摘要
Xanthan gum (XG) and humic acid (HA) belonging to dissolved organic matter are the main substances in membrane fouling, and their interaction affects the membrane fouling process. In this study, the fouling process of nZVI@PVDF membranes used to filter different concentrations of XG and HA were investigated by infrared spectroscopy-multivariable curve resolution analysis. The results showed that the interaction between polysaccharides and organic matter in water samples can affect membrane fouling. When the proportion of mixed pollutants in water samples changes, the degree of membrane fouling varied. The simulated water sample containing 25% XG caused the most serious membrane fouling, while the simulated water sample containing 60% XG caused the least membrane fouling. The results of ATR-IR combined with MCR-ALS showed that as the filtration time and the proportion of pollutants in water samples change, the dominant pollutants on the membrane surface will be different. For the simulated water sample with 25% XG and 75%HA, the main pollutant on the membrane surface was XG, while the main pollutant on the membrane surface of the simulated water sample with 60% XG and 40%HA was HA. In addition, the correlation between transparent extracellular polymers (TEP) and membrane fouling had also been verified in this study. The higher the TEP content, the more serious the membrane fouling.
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