Research progress of high-efficiency membrane distillation crystallization process

被引：0
|
作者：
Jiang X. [1 ]
Sun G. [1 ]
He G. [1 ]
机构：
[1] Engineering Laboratory for Petrochemical Energy-efficient Separation Technology of Liaoning Province, School of Chemical Engineering, Dalian University of Technology, Dalian, 116024, Liaoning
来源：
Huagong Xuebao/CIESC Journal | 2020年 / 71卷 / 09期
关键词：
Crystallization; Membrane distillation; Process coupling; Separation process; Water treatment;
D O I：
10.11949/0438-1157.20200542
中图分类号：
学科分类号：
摘要：
The global shortage of water resources and environmental pollution has made the demands for industrial wastewater treatment, seawater desalination, and comprehensive utilization of high-value solutes increasingly urgent. Membrane distillation crystallization process cannot only make full use of low-quality heat sources, achieve high-purity water-solvent separation, but also achieve salt crystallization preparation, which is of great significance for achieving zero liquid discharge and synergistic efficiency in the separation process. At the same time, membrane distillation crystallization process can also be coupled with multi-stage flash evaporation, multi-effect distillation, nanofiltration, forward infiltration, reverse osmosis and other processes to further improve the overall separation efficiency. In addition, it also has a positive impact on regulating the external morphology of the crystal, preparing crystal products with relatively concentrated crystal size distribution and good flowability. Based on this, this article has discussed several aspects of membrane distillation crystallization principles, process control mechanisms and innovative process applications, and looking forward to the key issues and development trends of membrane distillation crystallization technology in the fields of efficient separation and precise control of the crystallization process. © 2020, Chemical Industry Press Co., Ltd. All right reserved.
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页码：3905 / 3918
页数：13
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