Department of Chemical and Nuclear Engineering, Universidad Politécnica de Valencia, Camino de Vera s/n, Valencia 46022, Spain.
J Hazard Mater. 2010 Jun 15;178(1-3):341-8. doi: 10.1016/j.jhazmat.2010.01.085. Epub 2010 Jan 25.
More demanding legal regulations for the wastewater disposal and water scarcity make necessary wastewater reuse in the industry. In particular, textile industry generates large amounts of wastewater with a high concentration of pollutants. Even though present biological or physical-chemical treatments are broadly in place, the quality of the final effluent is not good enough to allow its direct reuse. Consequently, a complementary membrane process is required in order to improve wastewater characteristics. In this work, six NF membranes were tested at different volume concentration factors in order to select the most appropriate one. The main studied criteria were the permeate quality for its reuse in the textile processes and the minimum membrane fouling effect. The different results obtained for the tested membranes were explained by membrane characterization parameters as contact angle, roughness and size exclusion. Taking these factors into consideration, TFC-SR2 has shown the overall best results because of the high permeate flux and the minimum fouling (in terms of the normalised flux reduction).
更严格的废水处理和水资源短缺法律规定使得工业废水再利用成为必要。特别是，纺织工业产生大量高浓度污染物的废水。尽管目前广泛采用生物或物理化学处理方法，但最终出水的质量仍不足以允许直接再利用。因此，需要补充膜工艺来改善废水特性。在这项工作中，测试了六种 NF 膜在不同体积浓缩因子下，以选择最合适的一种。主要研究标准是渗透物质量，以便将其再用于纺织工艺，以及最小的膜污染效应。通过膜特性参数（接触角、粗糙度和尺寸排除）解释了测试膜的不同结果。考虑到这些因素，TFC-SR2 表现出了整体最佳的结果，因为它具有较高的渗透通量和最小的污染（以归一化通量减少表示）。
