The reason for the high cost of seawater desalination is that a lot of energy is consumed in the process of seawater desalination. Seawater desalination generally has two ways, one is distillation and the other is reverse osmosis. In fact, many areas in China are rich in fresh water resources, but in other countries and even some remote areas, fresh water resources are very scarce, and only a small amount of fresh water can be obtained through seawater desalination technology. After all, only 3% of the fresh water resources on the earth are limited. If we don't pay attention to saving water in our daily life, we may have to live in the future. People who lack water resources live in desalination projects, and many countries are reluctant to spend money on it because the cost is too high. Next, let's talk about desalination.

The reason for the high cost of seawater desalination is that a lot of energy is consumed in the process of seawater desalination. Although more than 90% of the earth is made up of oceans, we humans can't refer to seawater because its salt content is too high, so we can only extract fresh water from seawater through seawater desalination technology. Moreover, it takes a lot of energy to obtain a small amount of fresh water in the process of extracting fresh water, so many countries do not implement this project, which is a waste of money. It's better to transport it by truck for a long distance, which is more cost-effective.

At present, there are two desalination technologies, one is distillation and the other is reverse osmosis. Distillation method is very simple, that is, using the energy of the sun, directly heating the container with electric energy, distilling seawater to get pure water, so that salt and a series of impurities can be discharged and fresh water that human beings can drink can be obtained. Another method is reverse osmosis, that is, using a membrane, which can only penetrate water molecules, while other impurities such as sodium chloride will be separated by the membrane, which is also a seawater desalination technology.

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