After reviewing this series of materials, Luo Feng stretched and stood up.

I really don't know if I don't check, and I'm shocked when I check it.

In the past, Luofeng was generally abroad, and it was also in the coastal areas, so I didn't know that there was really a shortage of water in China.

If it's an ordinary person, even if it's some kind of awesome professor and researcher, what can you do if you know about it? can only look at Guan and sigh, but now that Luo Feng has a Tianyuan planet, so many things, if you look for them and use snacks, you will definitely be able to do it.

After Luo Feng stretched his waist, he continued to check the information, in the world, in fact, there are many countries that lack water, and the Dragon Kingdom is not particularly serious.

After all, the world has a growing population, and things like water are becoming more and more strained.

In particular, many landlocked countries have formed a huge contradiction over water resources.

Soon, Luo Feng also began to look at how to solve the severe problem of water resources.

1. Save water

2. Improve the utilization rate, develop science and technology, and reduce industrial water use

3. Develop modern agriculture and apply new technologies, such as drip irrigation. Reduce the extensive irrigation of traditional agriculture with large water irrigation

4. Reduce water pollution.

5. Develop seawater desalination technology

The plan of saving water is indeed useful, as long as everyone saves a little, the effect is indeed obvious, but the symptoms are not cured.

And recycling water? This is useful, but it still doesn't solve it.

Only the development of seawater desalination technology. This can be done once and for all.

"Desalination technology?"

When Luo Feng saw this, he stopped at these words.

Soon.

Luo Feng was very curious and clicked in.

Look at how the sea is desalinated today.

In general, there are six ways.

(1) Freezing method

Freezing is the freezing of seawater, in which the salt is separated as the liquid seawater becomes solid ice.

(2) Reverse osmosis

Commonly known as ultrafiltration, this method uses a semi-permeable membrane that only allows solvents to pass through and does not allow solutes to pass through to separate seawater from fresh water. Under normal circumstances, fresh water diffuses to the seawater side through a semi-permeable membrane, so that the liquid level on the seawater side gradually rises until a certain height does not stop, this process is called osmosis. If an external pressure greater than the osmotic pressure of the seawater is applied to one side of the seawater, then the pure water in the seawater will reverse osmosis into the fresh water. The biggest advantage of the reverse osmosis method is energy saving.

(3) Solar Energy Law

Solar distillation is the use of a simple solar still. The still consists of a tank with a black porous felt core floating cavity covered by a transparent, closed glass covering the top. Sunlight is projected through the transparent overlay onto the bottom of the black, adiabatic trough and converted into heat.

(4) Low-temperature distillation

Low-temperature multi-effect distillation desalination technology

Low-temperature multi-effect seawater desalination technology refers to the distillation desalination technology with the highest evaporation temperature of brine lower than 70 °C, which is characterized by a series of horizontal tube spray falling film evaporators connected in series, with a certain amount of steam input to the first effect, and the evaporation temperature of the latter effect is lower than the previous effect, and then through multiple evaporation and condensation, so as to obtain the desalination process of distilled water that is many times the amount of steam.

(5) Multi-stage flash evaporation

Flash evaporation refers to the phenomenon of rapid evaporation of part of seawater at a certain temperature under the condition of sudden decrease in pressure. Multi-stage flash seawater desalination is to evaporate heated seawater in multiple flash chambers with gradually decreasing pressure, and condense steam to obtain fresh water.

Among these methods, people mainly use distillation and reverse osmosis.

Large-scale distillation equipment is used to provide heat by using the heat energy released when the seawater itself cools down.

However, in contrast, such an approach does not seem to have a development trend as the reverse osmosis method.

However, no matter what the method is, when the seawater is desalined, a lot of concentrated brine will be produced, and these waste brine will greatly affect the ecological environment of the ocean.

There are many environmentalists who are well fed and supportive, and they hate such things, but Luo Feng looks down on them.

These people, as long as they are thrown into the desert and thirsty for three days and three nights, promise that they will not shout blindly.

As human beings, how can we obtain technology in this area if we do not research when there is no guarantee of basic water for human beings? If you study something, it will definitely hurt some of the environment, but try not to hurt it, you can't help it, your generation, or the next generation, you don't have to worry about water resources, but what about thousands of generations? What about water dried?

If everything is caused by population pressure, then it is not necessary that those environmentalists will cut themselves or not have children to reduce the pressure on the planet.

In fact, the most important thing they should do is not to shout and cheat all day long, but to study hard and study some more efficient methods for the good of the earth.

This is the cure for the root cause.

Luo Feng continued to check the information on seawater desalination, and suddenly saw that Israel had actually made a huge breakthrough in the technology of reverse osmosis in seawater desalination.

And we're in the process of negotiating with the country to get the technical authorization for that.

Seeing this, Luo Feng's eyes lit up slightly, the reverse osmosis technology of seawater desalination, there is really a research breakthrough in foreign countries?

Luo Feng suddenly thought of something, and opened his file library.

This is the list that Zheng Zeyao gave himself at the beginning, which is about some instruments needed by the military industry, and there are two instruments in it, which are about reverse osmosis desalination technology

It's just that at that time, Luo Feng didn't care, and there were too many instruments needed on the list, so he couldn't see it at all.

Now that I think about it, I just glanced at it at the beginning, and I have such an impression.

After thinking about it, Luo Feng stood up again and stretched hard.

Then he looked out the door and walked out.

"Sir, is there anything you can do?"

As soon as Zhu Debiao saw Luo Feng, he immediately saluted and inquired.

"Don't be so sensitive! I'm fine! It's just that I'm going to sleep! ”

When Luo Feng said this, Zhu Debiao immediately saluted and said: "Please sleep in peace, sir, I will swear to protect the safety issue!" ”

"No, no, I just want to say, when I sleep, I don't want to be disturbed, if there is anything big, don't call me, I'm very tired today!"

"Yes!"

After Luo Feng dropped this sentence, he naturally closed the door, and buckled it back.

After all, I was going to Tianyuan Star.

If someone opens the door and comes in, it won't be good, and it is estimated that the whole base will look for themselves at that time, making the chickens and dogs restless.

Luo Feng also informed Qin Dingguo not to look for himself.

This is not your home, and when you disappear, you can't be careful.

Afterwards, Luo Feng took out the ring and went directly to his Tianyuan Planet.

(End of chapter)