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首页> 外文期刊>e-Polymers >TFC polyamide NF membrane: characterization, application and evaluation of MTPs and MTC for simultaneous removal of hexavalent chromium and fluoride
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TFC polyamide NF membrane: characterization, application and evaluation of MTPs and MTC for simultaneous removal of hexavalent chromium and fluoride

机译：TFC聚酰胺NF膜：同时去除六价铬和氟化物的MTP和MTC的表征，应用和评估

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摘要

The aim of the present work was check the feasibility of thin film composite (TFC) polyamide NF500 nanofiltration (NF) membrane for simultaneous removal of hexavalent chromium [Cr(VI)] and fluoride from a synthetically prepared binary solution. The characterizations of the membrane were made with techniques like Fourier transform infrared (FTIR) spectroscopy, scanning electron microscopy (SEM) and atomic force microscopy (AFM). The study of simultaneous removal of Cr(VI) and fluoride ions at different parameters such as feed concentration, pressure and pH. Evaluation of mass transfer coefficient (MTC) and membrane transport parameters (MTPs) using the combined film theory-Spiegler-Kedem (CFSK) model. The estimated parameters are used to predict membrane performance for simultaneous removal of Cr(VI) and fluoride. Experimental results and model predicted results that show good correlations.
机译：本工作的目的是检查薄膜复合材料（TFC）聚酰胺NF500纳滤（NF）膜从合成制备的二元溶液中同时去除六价铬[Cr（VI）]和氟化物的可行性。膜的表征是通过傅立叶变换红外（FTIR）光谱，扫描电子显微镜（SEM）和原子力显微镜（AFM）等技术进行的。在不同的参数（例如进料浓度，压力和pH）下同时去除六价铬和氟离子的研究。使用膜理论-Spiegler-Kedem（CFSK）组合模型评估传质系数（MTC）和膜传输参数（MTP）。估计的参数用于预测同时去除六价铬和氟化物的膜性能。实验结果和模型预测结果显示出良好的相关性。

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