Abstract: The hydrate-based solution separation is a novel separation technology. This paper summarized the basic principle of aqueous concentration by forming hydrate，the benefits and drawbacks of hydrate technology. This paper emphasized the progress of seawater desalination，wastewater treatment，juice concentration，and biochemical separation by forming clathrate hydrate. Although forming hydrate desalination has been industrialized，the high and energy consumption of hydrate formation pressure limited its applications. The research on waste water treatment was only limited to pulping waste water recovery. Juice concentration and biochemical separation by forming hydrate were proven to be effective in recovery products with high added-value. The problems of high pressure of hydrate formation and hydrate crystal entrained concentrated solution by forming clathrate hydrate were also discussed. Future research directions of aqueous solution concentration by forming hydrate were proposed.

Key words: hydrate, separation, aqueous solution, desalination, juice concentration

摘要： 水合物法溶液分离是一种新兴的分离技术。本文概述了水合物溶液分离技术的基本原理，指出水合物溶液分离技术的优缺点。重点回顾了水合物溶液分离技术在海水淡化、废水处理、果汁浓缩、生化分离等过程中的研究进展：尽管水合物海水淡化已经有工业化的报道，但是水合物生成压力较高，分离过程能耗较大，阻碍了该技术的推广应用；水合物法废水处理仅局限于制浆废水回收方面；水合物果汁浓缩以及生化分离方面的研究表明水合物法对于高附加值产品分离十分有效。分析表明，水合物溶液分离技术在上述应用过程中存在水合物生成压力大、水合物结晶夹带浓缩液等问题，指出未来水合物溶液分离技术的研究方向为寻找更加有效的水合物生成气体以及在高附加值产品分离回收过程中的应用。

关键词: 水合物, 分离, 水溶液, 脱盐, 果汁浓缩