海水淡化方法是多种多样的,如蒸馏法、太阳能法、渗析法、扩散渗析法、压渗析法、电渗析法、反渗透法、超滤法、冷冻法、化学反应法、离子交换法、气体水合法、液膜法以及仿生迁移法等等。就具体方法而言,海水淡化无非是通过两种途径:将盐类从海水中取出,留下的则为淡水;或将淡水从海水 Seawater desalination methods are varied, such as distillation, solar energy, dialysis, diffusion dialysis, pressure dialysis, electrodialysis, reverse osmosis, ultrafiltration, freezing, chemical reaction, ion exchange, Gas hydration method, liquid membrane method and the bionic migration method and so on. Desalination can be accomplished in two ways, by its very nature: by removing salt from the seawater, leaving behind fresh water, or by removing freshwater from the seawater