Żyłła Renata, Foszpańczyk Magdalena, Olak-Kucharczyk Magdalena, Marszałek Joanna, Ledakowicz Stanisław
Łukasiewicz Research Network-Textile Research Institute, Brzezińska 5/15 Str., 92-103 Łódź, Poland.
Department of Environmental Engineering, Faculty of Process and Environmental Engineering, Lodz University of Technology, Wólczańska 213 Str., 90-924 Łódź, Poland.
Membranes (Basel). 2021 Dec 31;12(1):58. doi: 10.3390/membranes12010058.
The research covered the process of nanofiltration of low molecular weight organic compounds in aqueous solution. The article presents the results of experiments on membrane filtration of compounds containing amino groups in the aromatic ring and comparing them with the results for compounds without amino groups. The research was carried out for several commercial polymer membranes: HL, TS40, TS80, DL from various manufacturers. It has been shown that the presence of the amino group and its position in relation to the carboxyl group in the molecule affects the retention in the nanofiltration process. The research also included the oxidation products of selected pharmaceuticals. It has been shown that 4-Amino-3,5-dichlorophenol-a oxidation product of diclofenac and 4-ethylbenzaldehyde-a oxidation product of IBU, show poor separation efficiency on the selected commercial membranes, regardless of the pH value and the presence of natural organic matter (NOM). It has been shown that pre-ozonation of natural river water can improve the retention of pollutants removed.
该研究涵盖了水溶液中低分子量有机化合物的纳滤过程。本文介绍了对芳环中含有氨基的化合物进行膜过滤的实验结果，并将其与不含氨基的化合物的结果进行比较。研究针对几种不同制造商的商用聚合物膜进行：HL、TS40、TS80、DL。结果表明，分子中氨基的存在及其相对于羧基的位置会影响纳滤过程中的截留率。该研究还包括选定药物的氧化产物。结果表明，双氯芬酸的氧化产物4-氨基-3,5-二氯苯酚和布洛芬的氧化产物4-乙基苯甲醛，在选定的商用膜上表现出较差的分离效率，无论pH值和天然有机物（NOM）的存在情况如何。结果表明，对天然河水进行预臭氧化可以提高对去除污染物的截留率。
