Effluents from food, fermentation, and sugar industries contain a large quantity of glucose which has to be removed to limit the chemical oxygen demand (COD) of the water discharged. This work proposes novel thin-film nanocomposite (TFN) membranes incorporated with MgFe2O4 and ZnFe2O4 nanoparticles to address this concern. The nanoparticles synthesized by the sol-gel method was extensively characterized and then incorporated into the active polyamide layer of the thin-film composite polysulfone membranes. The change in membrane morphology, wettability, chemical structure, and mechanical strength with the incorporation of nanoparticles was studied in detail. Membranes with 0.005 wt.% MgFe2O4 nanoparticle exhibited highest glucose rejection (96.52 ± 2.35%) at 10 bar, 25 °C, and sufficiently high pure water flux (50.54 ± 1.92 L/m2h). This membrane also displayed 69.1 ± 5.12% salt rejection when challenged with 2000 ppm synthetic NaCl solution.

中文翻译：

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掺有金属铁氧体的聚砜薄膜纳米复合膜用于废水处理。

食品，发酵和制糖工业的废水中含有大量的葡萄糖，必须除去这些葡萄糖以限制排放的水的化学需氧量（COD）。这项工作提出了与MgFe2O4和ZnFe2O4纳米颗粒结合的新型薄膜纳米复合材料（TFN）膜。对通过溶胶-凝胶法合成的纳米颗粒进行了广泛的表征，然后将其掺入薄膜复合聚砜膜的活性聚酰胺层中。详细研究了纳米颗粒的掺入对膜形态，润湿性，化学结构和机械强度的影响。具有0.005 wt。％MgFe2O4纳米颗粒的膜在10 bar，25°C时表现出最高的葡萄糖排斥（96.52±2.35％）和足够高的纯净水通量（50.54±1.92 L / m2h）。