国内外海水淡化发展现状

Status of seawater desalination in China and abroad

海水淡化作为一种水资源开源增量手段,已经成为很多国家和地区解决水资源危机的重要手段.到2018年,全球海水淡化产能为6.2×10^(7)m^(3)/d,采用的技术主要是RO、MSF、MED,分别占全球总产能的54%、31%和10%,占淡化厂总数量的71%、11%和14%.其中MSF和MED技术主要分布在中东和北非地区,其他地区以RO技术为主.我国已建成海水淡化工程141个,总产能1.2×10^(6)m^(3)/d,其中RO和MED分别占总产能的63.6%和35.94%.从各种海水淡化技术的应用趋势上看,我国与国际海水淡化产业情况接近.从用户类型看,国际上海水淡化水主要用于市政饮用,而我国海水淡化水主要用于工业领域.

Seawater desalination,as an approach to increase water resources,has play a key role in narrowing water supply and demand gap in many countries.In 2018,seawater desalination plants globally produced 6.2×10^(7)m^(3)freshwater per day,of which 54%was from RO plants,31%from MSF plants and 10%from MED plants.The number of plants shared by RO,MSF and MED technology was 71%,11%and 14%,namely.There are 141 seawater desalination plants in China producing 1.2×10^(6)m^(3)freshwater per day.RO and MED dominate the capacity with a share of 63.6%and 35.94%.The tendency of technologies application globally and domestic was similar.