Environmental Health Research Center, Kurdistan University of Medical Sciences, Sanandaj, Iran.
Faculty of Engineering, University of Kurdistan, Sanandaj, Iran.
J Colloid Interface Sci. 2017 Nov 15;506:564-571. doi: 10.1016/j.jcis.2017.07.086. Epub 2017 Jul 24.
Arsenic contamination in drinking water is a serious problem worldwide. In this study, to remove arsenate from contaminated water, a new thin-film composite (TFC) membrane was fabricated and tested. This membrane was composed of an electrospun nanofibrous scaffold, a polyethylene terephthalate (PET) substrate as support, and a polyacrylonitrile (PAN) coating layer. To effectively reject arsenate ions, cetylpyridinium chloride (CPC) pretreatment was used. For evaluating the performance of TFC membrane, its flux and contaminant rejection were compared to a conventional ultrafiltration (UF) membrane. Due to high porosity, the TFC membrane showed a flux, which was 172-520% higher than the UF membrane. In addition, The TFC membrane was 1.1-1.3 times more efficient in rejecting arsenate ions than the UF membrane.
饮用水中的砷污染是一个全球性的严重问题。在这项研究中，为了去除受污染水中的砷酸盐，我们制备并测试了一种新型的薄膜复合（TFC）膜。该膜由静电纺纳米纤维支架、聚对苯二甲酸乙二醇酯（PET）基底和聚丙烯腈（PAN）涂层组成。为了有效地去除砷酸盐离子，我们使用了十六烷基氯化吡啶（CPC）预处理。为了评估 TFC 膜的性能，我们将其通量和污染物去除率与传统的超滤（UF）膜进行了比较。由于高孔隙率，TFC 膜的通量比 UF 膜高 172-520%。此外，TFC 膜去除砷酸盐离子的效率比 UF 膜高 1.1-1.3 倍。
