Ramlow Heloisa, Machado Ricardo Antonio Francisco, Marangoni Cintia
Chemical Engineering, Federal University of Santa Catarina, Campus Universitário Reitor João David Ferreira Lima, 88040-900 Florianópolis, Santa Catarina, Brazil E-mail:
Water Sci Technol. 2017 Nov;76(9-10):2565-2579. doi: 10.2166/wst.2017.449.
To meet surging water demands, water reuse is being sought as an alternative to traditional water resources. Direct contact membrane distillation (DCMD) has been increasingly studied in the past decade for its potential as an emerging cost effective wastewater treatment process and subsequent water reuse. This review presents a comprehensive overview of the current progress in the application of DCMD for textile wastewater treatment based on the available state of the art. There are already published review papers about the membrane distillation process, but the difference in the present work is that it focuses on the textile area, which consumes a lot of water and generates large amounts of wastewater, and still needs innovations in the sector. A review focused on the textile sector draws the attention of professionals to the problem and, consequently, to a solution. Current issues such as the influences of feed solution, membrane characteristics and membrane fouling and new insights are discussed. The main performance operating conditions and their effects on the separation process are given. Likewise, challenges associated with the influence of different dyes on the DCMD results are explained. This review also highlights the future research directions for DCMD to achieve successful implementation in the textile industry.
为满足激增的用水需求，人们正在寻求将水的再利用作为传统水资源的替代方案。在过去十年中，直接接触式膜蒸馏（DCMD）因其作为一种新兴的具有成本效益的废水处理工艺及后续水再利用的潜力而受到越来越多的研究。本综述基于现有技术水平，全面概述了DCMD在纺织废水处理应用中的当前进展。关于膜蒸馏工艺已有发表的综述论文，但本研究的不同之处在于它专注于纺织领域，该领域用水量大且产生大量废水，仍需要该领域的创新。专注于纺织领域的综述引起专业人士对该问题的关注，从而找到解决方案。讨论了诸如进料溶液、膜特性和膜污染的影响等当前问题以及新见解。给出了主要性能操作条件及其对分离过程的影响。同样，解释了不同染料对DCMD结果的影响所带来的挑战。本综述还强调了DCMD在纺织工业中成功应用的未来研究方向。
