Abstract

The main purpose of this study is the production of a nanofiber membrane from industrial wastes by using the electrospinning technique and determination of its filtration performance. Industrial wastes such as low-density polyethylene shrink film packaging (LDPEWs) and acrylic fiber (AFWs) were used as raw materials to reduce the cost of membrane production as an alternative to expensive commercial membranes. Experiments were carried out to find suitable solvents in order to solve the LDPEWs and AFWs before the electrospinning process, and optimum mixing ratios were determined. After determining the optimum solvent mixture of LDPEWs-AFWs and their proportions, nanofibers were produced by electrospinning process on the surface polypropylene (PP) nonwoven support layer, and their structures were examined. Under optimum conditions, a hydrophilic electrospun membrane with 0.478 µm pore size (MF-microfiltration), 230 nm nanofiber diameter and 20° liquid-membrane contact angle were obtained under optimum conditions, and a membrane module was created to use in wastewater filtration experiments. In order to determine filtration performance of the produced membrane, permeability and wastewater filtration tests were carried out by using real wastewater, and high pollutant removal rates (> 95%) were obtained in our experiments.

Graphic abstract

中文翻译：

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用丙烯酸纤维（AF）和低密度聚乙烯（LDPE）收缩膜废料生产微滤膜

摘要

这项研究的主要目的是通过使用静电纺丝技术并测定其过滤性能，从工业废料生产纳米纤维膜。低密度聚乙烯收缩膜包装（LDPEWs）和丙烯酸纤维（AFWs）等工业废料被用作原材料，以降低膜生产的成本，以替代昂贵的商用膜。进行了实验以寻找合适的溶剂，以在电纺丝工艺之前解决LDPEW和AFW，并确定了最佳混合比。确定了LDPEWs-AFWs的最佳溶剂混合物及其比例后，通过静电纺丝法在表面聚丙烯（PP）无纺布支撑层上制备了纳米纤维，并对其结构进行了研究。在最佳条件下 在最佳条件下获得了孔径为0.478 µm（MF微滤），230 nm纳米纤维直径和20°液膜接触角的亲水性静电纺膜，并创建了膜组件以用于废水过滤实验。为了确定所生产的膜的过滤性能，使用真实废水进行了渗透性和废水过滤测试，并且在我们的实验中获得了较高的污染物去除率（> 95％）。

图形摘要