Bazinet Laurent, Geoffroy Thibaud R
Department of Food Sciences, Laboratoire de Transformation Alimentaire et Procédés ÉlectroMembranaires (LTAPEM, Laboratory of Food Processing and Electromembrane Processes), Institute of Nutrition and Functional Foods (INAF), Dairy Research Center (STELA), Université Laval, Quebec, QC G1V0A6, Canada.
Membranes (Basel). 2020 Sep 2;10(9):221. doi: 10.3390/membranes10090221.
In the context of preserving and improving human health, electrodialytic processes are very promising perspectives. Indeed, they allow the treatment of water, preservation of food products, production of bioactive compounds, extraction of organic acids, and recovery of energy from natural and wastewaters without major environmental impact. Hence, the aim of the present review is to give a global portrait of the most recent developments in electrodialytic membrane phenomena and their uses in sustainable strategies. It has appeared that new knowledge on pulsed electric fields, electroconvective vortices, overlimiting conditions and reversal modes as well as recent demonstrations of their applications are currently boosting the interest for electrodialytic processes. However, the hurdles are still high when dealing with scale-ups and real-life conditions. Furthermore, looking at the recent research trends, potable water and wastewater treatment as well as the production of value-added bioactive products in a circular economy will probably be the main applications to be developed and improved. All these processes, taking into account their principles and specificities, can be used for specific eco-efficient applications. However, to prove the sustainability of such process strategies, more life cycle assessments will be necessary to convince people of the merits of coupling these technologies.
在保护和改善人类健康的背景下，电渗析工艺具有非常广阔的前景。事实上，它们可用于水处理、食品保鲜、生物活性化合物的生产、有机酸的提取以及从天然水和废水中回收能量，且对环境影响较小。因此，本综述的目的是全面介绍电渗析膜现象的最新进展及其在可持续发展策略中的应用。似乎关于脉冲电场、电对流涡旋、过极限条件和反转模式的新知识以及它们应用的最新实例，目前正在激发人们对电渗析工艺的兴趣。然而，在扩大规模和实际应用条件方面，障碍仍然很大。此外，从最近的研究趋势来看，饮用水和废水处理以及循环经济中增值生物活性产品的生产可能是有待开发和改进的主要应用领域。考虑到所有这些工艺的原理和特性，它们可用于特定的生态高效应用。然而，为了证明此类工艺策略的可持续性，需要进行更多的生命周期评估，以使人们相信将这些技术结合起来的优点。
