Sarbatly Rosalam, Chiam Chel-Ken
Chemical Engineering, Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia.
Nanofiber and Membrane Research Laboratory, Faculty of Engineering, Universiti Malaysia Sabah, Jalan UMS, Kota Kinabalu 88400, Sabah, Malaysia.
Nanomaterials (Basel). 2022 Aug 24;12(17):2919. doi: 10.3390/nano12172919.
Oil separation from water becomes a challenging issue in industries, especially when large volumes of stable oil/water emulsion are discharged. The present short review offers an overview of the recent developments in the nanofiber membranes used in oily wastewater treatment. This review notes that nanofiber membranes can efficiently separate the free-floating oil, dispersed oil and emulsified oil droplets. The highly interconnected pore structure nanofiber membrane and its modified wettability can enhance the permeation flux and reduce the fouling. The nanofiber membrane is an efficient separator for liquid-liquid with different densities, which can act as a rejector of either oil or water and a coalescer of oil droplets. The present paper focuses on nanofiber membranes' production techniques, nanofiber membranes' modification for flux and separation efficiency improvement, and the future direction of research, especially for practical developments.
在工业中，从水中分离油成为一个具有挑战性的问题，尤其是当大量稳定的油/水乳液被排放时。本简短综述概述了用于含油废水处理的纳米纤维膜的最新进展。该综述指出，纳米纤维膜可以有效地分离自由漂浮的油、分散油和乳化油滴。高度互连的孔隙结构纳米纤维膜及其改性润湿性可以提高渗透通量并减少污垢。纳米纤维膜是一种用于分离不同密度液体-液体的高效分离器，它可以作为油或水的截留器以及油滴的聚结器。本文重点关注纳米纤维膜的生产技术、为提高通量和分离效率而对纳米纤维膜进行的改性，以及未来的研究方向，特别是实际应用的发展方向。
