Lu Haijiao, Wang Jingkang, Wang Ting, Wang Na, Bao Ying, Hao Hongxun
National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China.
National Engineering Research Center of Industry Crystallization Technology, School of Chemical Engineering and Technology, Tianjin University, Tianjin, 300072, China; Collaborative Innovation Center of Chemical Science and Engineering, Tianjin, 300072, China.
Chemosphere. 2017 Apr;173:474-484. doi: 10.1016/j.chemosphere.2017.01.070. Epub 2017 Jan 18.
As a by-product of industrial or domestic activities, wastewater of different compositions has caused serious environmental problems all over the world. Facing the challenge of wastewater treatment, researchers have begun to make use of crystallization techniques in wastewater treatment. Crystallization techniques have many advantages, such as high efficiency, energy saving, low costs, less space occupation and so on. In recent decades, crystallization is considered as one of promising techniques for wastewater treatment, especially for desalination, water and salt recovery. It has been widely used in engineering applications all over the world. In this paper, various crystallization techniques in wastewater treatment are summarized, mainly including evaporation crystallization, cooling crystallization, reaction crystallization, drowning-out crystallization and membrane distillation crystallization. Overall, they are mainly used for desalination, water and salt recovery. Their applications, advantages and disadvantages were compared and discussed in detail.
作为工业或家庭活动的副产品，成分各异的废水已在全球范围内引发了严重的环境问题。面对废水处理的挑战，研究人员已开始在废水处理中利用结晶技术。结晶技术具有诸多优点，如高效、节能、成本低、占地少等。近几十年来，结晶被视为废水处理的有前景的技术之一，尤其是用于海水淡化、水和盐的回收。它已在世界各地的工程应用中广泛使用。本文总结了废水处理中的各种结晶技术，主要包括蒸发结晶、冷却结晶、反应结晶、盐析结晶和膜蒸馏结晶。总体而言，它们主要用于海水淡化、水和盐的回收。对它们的应用、优缺点进行了详细比较和讨论。
