Environmental Engineering Department, Istanbul Technical University, Maslak, 34469, Istanbul, Turkey E-mail:
Faculty of Engineering, Department of Environmental Engineering, Istanbul University-Cerrahpaşa, İstanbul, Turkey.
Water Sci Technol. 2021 Jan;83(2):271-283. doi: 10.2166/wst.2020.573.
In this paper, ultrafiltration (UF) flat sheet membranes were manufactured by introducing two diverse halloysite nanotubes (HNT) size (5 μm and 63 μm) and five different (0, 0.63, 1.88, 3.13, 6.30 wt %) ratios by wet phase inversion. Some characterization methods which are contact angle, zeta potential, viscosity, scanning electron microscopy (SEM) and Young's modulus measurements were used for ultrafiltration membranes. Synthetic dye waters which were Setazol Red and Reactive Orange were used for filtration performance tests. These dye solutions were filtered in three different pH conditions and three different temperature conditions for pH and temperature resistance to understand how flux and removal efficiency change. The best water permeability results were obtained as 190.5 LMH and 192 LMH, for halloysite nanotubes (HNT) sizes of 5 μm and 63 μm respectively. The best water and dye performance of UF membrane contains 1.88% w/w ratio of HNT, which showed increased water flux and dye flux of membranes according to different HNT concentrations including ultrafiltration membranes.
本文通过湿相转化法引入两种不同尺寸（5μm 和 63μm）和五种不同含量（0、0.63、1.88、3.13、6.30wt%）的海泡石纳米管（HNT），制备了超滤平板膜。采用接触角、Zeta 电位、粘度、扫描电子显微镜（SEM）和杨氏模量测量等表征方法对超滤膜进行了研究。采用合成染料废水——Setazol Red 和 Reactive Orange 进行了过滤性能测试。在三种不同的 pH 值和三种不同的温度条件下过滤这些染料溶液，以了解通量和去除效率的变化，从而考察其对 pH 和温度的耐受力。对于海泡石纳米管（HNT）尺寸为 5μm 和 63μm 的超滤膜，其最佳水透过性能分别为 190.5LMH 和 192LMH。对于含有 1.88wt%w/w 海泡石纳米管（HNT）的超滤膜，其具有最佳的水和染料性能，与不同浓度的海泡石纳米管（HNT）相比，该膜的水通量和染料通量均有所提高。
