Huludao City, the headquarters of Dongyin Water Group.

Raff has arrived with a team of negotiators, and now they are visiting the desalination plant in Huludao.

Looking at the fresh water in the reservoir, constantly going in and out, he had to admit that Dongtang was the world's first in seawater desalination technology, the undisputed world's first.

"Mr. Zhang, I don't know when President Zhu will come back?" Raff turned to the vice president of the water group to the side and asked.

"Maybe around June 4th! It is true that the sales contracts of the desalination plant are almost the same, and there is no need to wait for Mr. Zhu to come back. ”

Raff hurriedly shook his head: "I want to talk to President Zhu in person, it's okay, I can wait." ”

"Alright then!"

Raff wished that Zhu Jianguo would come back later, he knew that this time the negotiations were nine times out of ten to be yellow, and he was just delaying time, so he would travel at public expense.

So Raff didn't care about the negotiation at all, and went directly to Huludao City to enjoy the scenery.

At this time, Zhu Jianguo was inspecting the laying of the main water supply line in Jin Province, and of course he did not have time to pay attention to the negotiation team in Tuao.

The central water supply trunk has now advanced to the vicinity of Wenshui County in Luliang City, and in fact, the central water supply trunk line basically coincides with the railway route.

For example, the planned line of the central water supply trunk line in Luliang City is almost parallel to the railway line.

From Jinzhong City - Wenshui County - Luliang City - Liulin County - Wubao into Qin Province.

"Did you run into any trouble with the project?" Zhu Jianguo looked at the progress table and asked.

Shi Hai, the person in charge of the middle line of the pipeline construction company, hurriedly replied:

"The main problem is the terrain, the terrain of Jin Province is more responsible, which has brought some inconvenience to our construction, and now our line has entered the scope of the Luliang Mountains."

"Overcome it a little more, and if possible, you can communicate with the railway construction group."

"We've been in contact with the railroad authorities."

"By the way, how are you preparing for the Yellow River Bridge?" Zhu Jianguo asked.

After all, the central water supply trunk line, after passing through Liulin County, is Wubao in Qin Province, where the Yellow River must be crossed.

"We have discussed with the Planet Group that we plan to build a bridge across the river using the model of the Strait Bridge." Shi Hai opened the holographic bracelet and explained.

Zhu Jianguo looked at the simulation design model and nodded with satisfaction.

Although the laying speed of the middle line is much slower than that of the northern line, Zhu Jianguo is still satisfied with the current construction progress.

After all, the terrain of the two lines is different, the northern line is a flat desert Gobi desert or grassland, etc., these terrains are not complicated, but the climate is a little harsh.

The middle line needs to cross the Taihang Mountains, Taiyuan Basin, Luliang Mountains, the Yellow River, etc., the terrain is several times more complicated, and the areas through which the middle line passes are densely populated, and the issue of land acquisition compensation is also more troublesome.

……

The other side.

Near Hualien, East Island.

One of the research institutes of Galaxy Technology.

Dr. Yuan Quan and others were wearing thick protective clothing, watching the tests in the laboratory.

As a steady stream of seawater passes through the film, the radiation dose on the radiation dosimeter on the side is soaring rapidly.

"Doctor, the concentration has reached a tipping point."

"Replace the film." Dr. Yuan Quan immediately commanded.

The researcher hurriedly pressed the membrane switch button, and the membrane of the filter pool quickly switched.

The staff did not dare to slack off, and hurriedly operated the robot to remove a film full of uranium attached.

Then it is quickly chemically processed to make a yellowcake with a concentration of about 70%.

"What about films?" Yuan Quan's biggest concern now is the service life of the film.

The reason is simple: the intense radiation of highly concentrated uranium will quickly destroy the molecular structure of the film.

No matter what kind of material the film is made, once it is in contact with strong radiation for a long time, no matter how powerful the film is, it will turn into tofu slag.

"From the filtration point of view, the new membrane has a filtration efficiency of 100% for the first time and 97% for the second time...... The eighth time only had about 37% of the filtration effect left. The researcher handed the report to Dr. Yuan Quan.

"That's all for now." As for the problem of radiation exposure, she has no way to solve it for the time being.

"By the way, Doctor, this is the yield report."

After taking a look at it, the output of this laboratory factory is about 760 kilograms of yellow cake (70% concentration) per year.

After these yellowcakes are produced, part of them are stored by Galaxy Technology, and the remaining part is sold to China National Nuclear Corporation.

Dr. Yuan Quan left the laboratory and went to the office building a kilometer away, when she took off her protective clothing, which was necessary due to the radiation dose of high-concentration yellow cakes.

Zhang Silin, the deputy director in charge of the management of the institute, saw Yuan Quan come back and poured her a pot of tea.

"Dr. Yuan, how is today's experiment?"

After taking a sip of tea, Yuan Quan said helplessly: "The film has been successful, but the service life is a big problem." ”

"Or can you only use it about ten times?" Zhang Silin knows these data.

Yuan Quan nodded: "The radiation dose of high-concentration yellow cake is too high, and it will quickly destroy the molecular structure of the film, which is an unavoidable problem." ”

"It's alright! At least it's better than the Plasma Institute, where they don't have a problem with neutrons. Zhang Silin said with a smile.

What he said, of course Yuan Quan knows, although the Plasma Research Institute already has a room temperature superconductor, but the problem of neutron irradiation has not been a breakthrough, and the devil knows how to solve this problem.

"Maybe nuclear fusion power generation is really forever away from us for 50 years!" Yuan Quan joked.

"By the way, has the yield been calculated?"

"It's out."

"How much?"

"Using 100 square meters of filter membrane, we can produce about 760 kilograms of yellow cake a year, and the concentration is about 70%." Yuan Quan replied directly.

"Is that so?" Zhang Silin heard this data and opened the holographic bracelet to calculate the cost.

The uranium filter membrane is 3,700 Chinese yuan per square meter, and due to the problem of radiation dose, the film is replaced about twice a day on average, and the cost of the film to produce 760 kilograms of yellow cake is 100 * 365 * 2 * 3700 = 270.1 million Chinese yuan.

The average price is about 350,000 Chinese dollars per kilogram, which is obviously not cost-effective, after all, the international price of yellow cakes is about 50~300 Chinese yuan per kilogram.

"The cost is too high, if it is used to produce mushrooms, it is quite cost-effective, but if it is used to generate electricity, it is not cost-effective." Zhang Silin said helplessly.

"Take your time! I can't eat hot tofu in a hurry. Of course, Yuan Quan knows that this cost is too high, and as a civil power generation, it is impossible to get out.

As for why it is more suitable to make mushrooms, the main reason is that the film can quickly produce yellowcakes with a concentration of 99.999%.

When the concentration of yellowcake reaches more than 80%, the refining cost is calculated per percentage point, and the higher the concentration, the higher the cost.

Yellowcakes with a concentration of 99.999% are calculated in grams, hundreds of thousands of Chinese dollars per gram.

The yellow cake produced by the film method only needs about 100~1.2 million per kilogram to obtain a yellow cake with a concentration of 99.999%.

Therefore, the thin film method can replace the centrifugal method as the refining method of high-concentration yellow cakes, but in the invention of civil power generation, there is no need for high-concentration yellow cakes, and the cost of hundreds of thousands of kilograms is out of date.

"Doctor, you give me the data, and I'll upload the experiment report." Zhang Silin put down the teacup and said.

Dr. Yuan Quan nodded: "Yes, I'll sort it out for you later." ”