Güneş-Durak Sevgi, Ormancı-Acar Türkan, Tüfekci Neşe
Faculty of Architecture and Engineering, Department of Environmental Engineering, Nevsehir Hacı Bektas Veli University, 50300 Nevsehir, Turkey E-mail:
Faculty of Engineering, Department of Environmental Engineering, Istanbul University, Istanbul, Turkey.
Water Sci Technol. 2018 May;2017(2):329-339. doi: 10.2166/wst.2018.142.
In this study, four different membranes were fabricated by using polyetherimide and polyacrylonitrile polymers, N-methyl-2-pyrrolidone and polyvinylpyrrolidone (PVP) via phase inversion method to improve the membrane performance in fruit juice wastewater (FJWW) treatment. The addition of PVP to the casting solution increased membrane hydrophilicity, water content, contact angle, porosity, Fourier transform infrared spectroscopy peaks, membrane thickness, average roughness and viscosity of cast solutions compared to the bare membrane. It can be said that the addition of a lower polymer concentration and PVP intensively increases the pure water flux of the membrane. However, as the flux increased, a small decrease in FJWW rejection was observed.
在本研究中，通过相转化法使用聚醚酰亚胺和聚丙烯腈聚合物、N-甲基-2-吡咯烷酮和聚乙烯吡咯烷酮（PVP）制备了四种不同的膜，以提高膜在果汁废水（FJWW）处理中的性能。与裸膜相比，向铸膜液中添加PVP增加了膜的亲水性、含水量、接触角、孔隙率、傅里叶变换红外光谱峰、膜厚度、平均粗糙度和铸膜液的粘度。可以说，添加较低的聚合物浓度和PVP会显著增加膜的纯水通量。然而，随着通量的增加，观察到FJWW截留率略有下降。
