一些采取蒸馏海水的方法，通过将海水加热，蒸发出部分海水，之后将其浓缩，而这一方法需要电力。
Some distil seawater by heating it up to evaporate part of it. They then condense the vapour-a process that requires electricity.
一种方法是海水蒸馏，通过加热卤水可以得到浓缩的水蒸气，这种方法每淡化1立方米的海水需要10千瓦时的电量。
Some employ distillation, which needs about 10 kilowatt-hours (kWh) of energy per cubic metre of seawater processed. Brine is heated, and the resulting water vapour is condensed.
海水脱盐法不可避免地遗留下浓缩的盐水，它会破坏环境，甚至影响淡水供应。
Desalination inevitably leaves behind a concentrated brine, which can harm the environment and even the water supply itself.
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