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海水淡化海水占地球总水量的97%以上,是一个取之不尽,用之不竭的水源。尤其我国海岸线长,沿海大、中、小城镇星罗棋布,需要大量的水。但海水含盐量高达28000—35000毫克/升,不能直接使用。所谓“海水淡化”,是指将海水脱去盐份,变为供人们生活及一般工农业生产用的淡水。它将是解决水源不足的重要途径。“海水淡化”基本上分两大类,即从海水中取出淡水,或在海水中除去盐。苦咸水淡化水中氯化物含量高达800—1000毫克/升或硫酸盐达400毫克/升时,饮用时人就会感
Seawater desalination accounts for more than 97% of the total water in the earth. It is an inexhaustible source of water. In particular, China’s coastline is long, and large, medium, and small coastal cities are dotted with large amounts of water. However, the salt content in seawater is as high as 28,000-35,000 mg/liter and cannot be used directly. The so-called “desalination of sea water” refers to the removal of salt from seawater and the use of fresh water for people’s lives and general industrial and agricultural production. It will be an important solution to the shortage of water resources. “Desalination” basically consists of two major categories, namely the removal of fresh water from seawater or the removal of salt in seawater. When brackish water desalination water contains 800-1000 mg/l chloride or 400 mg/l sulfate, people will feel it when drinking.