作为水资源的开源增量技术,海水淡化已经成为解决全球水资源危机的重要途径。到2006年,世界上已有120多个国家和地区在应用海水淡化技术,解决了1亿多人的供水问题。目前全球海水淡化技术超过20余种,包括反渗透法、低多效、多级闪蒸、电渗析法、压汽蒸馏、露点蒸发法、水电联产、热膜联产以及利用核能、太阳能、风能海水淡化技术等,以及微滤、超滤、纳滤等多项预处理和后处理工艺。随着科研技术的不断发展,近年来国际上在海水淡化领域不断出现各种新兴技术,现将海淡中最重要的脱盐工艺 As an open source incremental technology for water resources, desalination has become an important solution to the global water crisis. By 2006, more than 120 countries and regions in the world have applied desalination technology to solve the water supply problem of more than 100 million people. At present, there are more than 20 kinds of desalination technologies in the world, including reverse osmosis, low efficiency, multi-stage flash, electrodialysis, pressure steam distillation, dew point evaporation, cogeneration, thermal film coproduction and the utilization of nuclear energy, solar energy, Wind sea water desalination technology, as well as microfiltration, ultrafiltration, nanofiltration and many other pre-treatment and post-treatment process. With the continuous development of scientific research and technology, in recent years, there are various new emerging technologies in the field of desalination in the world. Now, the most important desalination process