点击次数：

论文类型：会议论文

发表时间：2014-08-19

收录刊物：EI、CPCI-S、Scopus

卷号：675-677

页面范围：851-855

关键字：Natural vacuum desalination (NVD); Seawater desalination; Freshwater production

摘要：Seawater desalination technology is an important way to solve the freshwater shortage problem. Natural vacuum desalination (NVD) technology generates very low pressure environment in the headspace of 10 meters high water column. The weight of the water column is balanced by atmospheric pressure, and low-temperature desalination proceeds in the headspace. NVD technology drives the desalination process without any mechanical pumping, and requires relatively inferior quality of device material and simple structures. In this paper, the basic theory of NVD technology is introduced and physical model is described. Research progresses of different types of NVD technologies are summarized, and the method of increasing freshwater production is pointed out. This paper also illustrates the outlook on future development of NVD technology.