Before returning to the college entrance examination, I became popular in the science circle

Chapter 237 Step by Step
Anyone who has read popular science knows that there are countless gold stocks on the earth, and only about 48 billion tons are known to mankind.Looking at it this way, the amount of gold seems to be huge and inexhaustible.In fact, this is not the case. About 99% of the world's gold is distributed in the earth's core, while only 60 tons are in the earth's crust, and humans have the ability to mine even less.

According to statistics, nearly 20 tons of gold have been mined since the development of mankind.Compared with the gold stock on the earth, this value is not large.But this already accounts for nearly 80% of the gold that can be mined by humans.

In other words, if no new large-scale mineral resources emerge, gold mining will be exhausted.

People have been trying, but have yet to find a cheap and efficient way to profitably mine gold from the ocean.

But now, they have China!

When the crystal blue reactant leaves under the magnetic attraction of the electrolytic magnet and enters the next cycle, a shallow layer of golden yellow powder appears in the storage room, which is so exciting.The pure metal test result is undoubtedly gold powder.

The seawater continues to rush to the next process. There are ten more processing processes like this, all of which are aimed at extracting macroelements from seawater and collecting resources useful to the country.

Although this kind of extraction process does not produce much at one time, the production line can continue to operate, and the cost is much safer than traditional mineral mining. Moreover, there is no pollution caused by various heavy metal mining, but it is purifying the environment. .

There are six grams of mercury in one gram of gold, and mercury has been used for centuries as a cheap and easy way to collect gold.

Particularly in small-scale, illegal gold mining, miners first pump a mixture of sediment from a river bed into a tank and separate the gold using a technique called hydraulic mining.

Next, since the purity of the initially separated gold is not high, it needs to be purified, and a large amount of relatively cheap mercury is added to combine with the gold particles to form an amalgam.Finally, a spray gun is used to heat the amalgam, turning the mercury into vapor leaving the gold.

Mercury contained in tailings or waste can contaminate nearby soil and aquatic ecosystems, and mercury vapor enters the atmosphere and can travel long distances before being deposited on land and water through rainfall or small dust particles.

This results in large amounts of mercury contamination. Although mercury is a naturally occurring element in the earth's crust, it is extremely toxic to humans and animals, even at extremely low exposure levels.Microorganisms in the environment can convert mercury into methylmercury,

Methylmercury is a powerful neurotoxin that is harmful to humans and animals. When it reaches a certain concentration, it will damage the most important central nerve of the human body, causing irreversible consequences.

Now, China finally has new technology that can extract it without pollution.Domestic gold reserves account for a low proportion of the world, are not rich, and are not of high grade. The cost of mining is very high. Special equipment and special tools must be used, and the mining cycle is long.

However, domestic gold consumption is the largest gold producer and consumer.The domestic use and pursuit of gold has existed throughout ancient and modern times.Now, domestic gold finally has a new addition.Each link passes smoothly through each processing workshop. Finally, the water undergoes various extraction treatments and is filtered through an ultrafiltration purification membrane. The pure water pours into a transparent and sealed storage tank.The purified water is clean and clear without any fishy smell. Just like the previous process storage rooms were sampled and inspected, the purified water was also inspected immediately.

Soon, the results came out, and the results of the ten sets of random inspections were realistic.

"It is indeed the cleanest water molecules and the purest fresh water. It can be said to have zero pollution. All harmful substances are completely filtered. With the appropriate amount of minerals added, it is a high-quality water source that can be directly consumed. The standard is much higher than the tap water we use now!”

The person in charge of quality inspection announced the good news again and again. His voice was hoarse, but he still reported excitedly at the top of his lungs. He was so excited.

As a child from the Northwest, he has a mysterious love and cherishment of water. As the person closest to the core team and the young talent currently being cultivated above, the person in charge of quality inspection knows that this water will later be transported to the North through the North Diversion Project. Northwest.

With such epoch-making super technology and abundant water resources like the sea, in the future, the land in the northwest that has been dry for a long time will never be short of water again.No more, the water in the bottom of the basin is used by the whole family to wash their faces and hands and then wash their feet... I cherish it and dare not use it.

"Calm down, calm down, save your strength! Don't worry, the designation will be better in the future. We Chinese scientific researchers have been working hard to improve technology and fight on the front line!" Academician Han patted lightly. He patted the shoulder of the young man opposite him, who could only be described as the young man in charge. He could understand the child's excitement.

Among the older generation here, there is no one who has not taken root in the Great Northwest and fought hard. Who does not know the hardships and lack of water in the Great Northwest.

"Everything will be fine in the future, everything will be fine!" Cheng Lao and the others also smiled and nodded expectantly. "The purified water we now filter will be first integrated into some local water networks and gradually replace the previous aging water plants. The planning of the northern diversion project has been put on the agenda. New water transmission pipelines have been developed, which are earthquake-resistant, anti-corrosion and anti-oxidation. We will strive to ensure that the main pipeline will not be replaced for three to 50 years, or even for a century!"

Each technological advancement has brought them pride and confidence in grammar, and they also have the courage to speak out goals that they once dared not think about or speak out.Science and technology bring progress, and the nation's self-confidence and self-improvement means that it is more and more self-respect and self-confidence based on an increasingly powerful national power!
"We also need to build more desalination plant production lines in coastal areas to connect to the national water network so that people across the country can drink safe water and no longer be trapped by drinking water pollution and water resource depletion!" The bosses in charge, Sentence by sentence, we set the direction for future development. Everything is for the country and for people to live a better life.

They are the luckiest to be able to witness the birth of such a miracle when they are approaching old age. While they are still able to do something, they can still do practical things for the country and burn their own strength.

"We old bones should work harder and arrange the remaining items quickly. Don't bother the boss all the time and worry about these small things!" At this time, what a few people said was the boss. Refers to the general director of this project, Wu Tong.Only a few of them can understand this.

Wu Tong's existence has now become the biggest top-secret information, leaving no opportunity for any force with evil intentions to take advantage of.Wu Tong's safety is of great importance and has become an important factor that can affect the level of the country's progress. It cannot be ignored in the slightest!

(End of this chapter)