This paper aims to analyze the process of eutectic freeze crystallization, as well as its current use and future potential. The fundamental concepts of this process and the equipment required are studied to ascertain its advantages compared to conventional separation methods such as evaporative crystallization and reverse osmosis. Various equipment or combinations of equipment are also evaluated in terms of energy requirement and cost in order to optimize eutectic freeze crystallization based on situational conditions. By looking at current industrial applications of eutectic freeze crystallization, the future of this process and its feasibility in larger scale productions can be determined. Lastly, an in-depth analysis is carried out on the use of eutectic freeze crystallization in Kemira Chemical Plant and DWP Botlek of Evides Industriewater to improve the understanding of this process in a real industrial setting. © 2021 Institute of Physics Publishing. All rights reserved.