复合膜及其油/水分离性能评价

Luana Araújo de Oliveira, M. Rodrigues, Antonielly dos Santos Barbosa, R. S. S. Cunha, J. D. Mota
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引用次数: 0

摘要

被有机化合物污染的废水的产生,释放或泄漏到这些水体会导致严重的环境问题。水中化学污染物的去除是环境修复的核心问题之一。从这个意义上说,膜在环境领域变得越来越重要。本研究旨在开发一种用于污水油水分离的UHMWPE/LDPE/CTAC-HGC复合膜。采用单轴干燥压实和烧结法制备了聚合物膜和复合膜。采用x射线衍射(XRD)、红外光谱(IR)和扫描电镜(SEM)对硬绿粘土(HGC)和十六烷基三甲基氯化铵(CTAC-HGC)有机干燥后的硬绿粘土进行了表征。采用XRD和SEM对超高分子量聚乙烯、聚合物膜和复合膜进行了表征。以纯水为渗透剂,对复合膜的水通量进行了评价。测试了复合膜分离油水乳液的潜力。复合膜对油类的去除率达到99.60%以上,证明复合膜分离技术是处理油类的一种替代技术。
本文章由计算机程序翻译,如有差异,请以英文原文为准。
Composite Membrane and Evaluation on Separation Oil/Water
The generation of wastewater contaminated with organic compounds, release or spill into these water bodies can lead to serious environmental problems. The removal of chemical pollutants in water presents itself as one of the central issues regarding the issue of environmental remediation. In this sense, membranes, haves gained increasing importance in the environmental area. This present study aims to develop a composite membrane using UHMWPE/LDPE/CTAC-HGC to be used for oil/water separation of wastewater effluents. The polymeric membrane and composite membrane were prepared by uniaxial dry compaction and sintering. Both hard green clay (HGC) and hard green clay organophilized with cetyl trimethyl ammonium chloride (CTAC-HGC) were characterized by X-ray Diffraction (XRD), infrared spectroscopy (IR) and scanning electron microscopy (SEM). UHMWPE, polymeric membrane and composite membrane were characterized by XRD and SEM. The water flux through the composite membrane was evaluated using pure water as a permeate. The potential of the composite membrane to separate oil-water emulsions was tested. The composite membrane showed excellent removal of the oil, exhibiting removal of more than 99.60 %, evidencing the process of composite membrane separation as an alternative technology for the treatment of oil.
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