The rise of nanometers

December 16th.

Among the 174 former TEPCO management personnel involved in various dirty things, except for 7 who committed suicide and 42 who chose the first option, the other 125 people submitted applications.

Lei Changwu organized these people into a redemption camp and dispatched them to the Fukushima Daiichi Nuclear Power Plant.

At this time, inside the Fukushima Daiichi Nuclear Power Plant, in addition to densely packed large tanks, there was also a temporary command center that had just been built.

Shen Xinghai, a nuclear safety expert from China National Nuclear Corporation, and Zhong Changming, the leader of the accident handling team from Taipei Nuclear Corporation, had already arrived here the day before yesterday.

At the scene, there were also a lot of retired experts from TEPCO, all of them gray-haired old men. Obviously, these people were death squads and victims of TEPCO's management's wrong decisions.

Shen Xinghai, fully equipped with nuclear defense equipment, returned to the command center with a dozen assistants. After passing through the radiation clearance area, he came to the command room.

"Dr. Shen, how is the situation?" Zhong Changming asked while pouring water.

Shen Xinghai replied with a serious face: "These devils are really audacious. The four cores showed signs of melting to varying degrees, and two of them have sunk into the concrete safety layer. Once the safety layer is burned through, it will be filled with radioactive materials." The reactor core is very likely to enter the groundwater."

It seems that this situation is caused by the Japanese people themselves, but don’t forget that the ecosystem is dynamically changing.

After the groundwater is contaminated, it is very likely to spread to the entire ecosystem through oceans, hot springs, and underground rivers.

Zhong Changming also became nervous: "We must find a way to thicken the underground concrete safety layer to prevent the reactor core from penetrating the safety layer."

Among the expert team of the Suiren Department, Liu Xin, who had switched careers to study nuclear accident rescue, suggested: "We can use our shale oil mining technology to completely turn the surrounding underground into solid artificial rock."

Shen Xinghai nodded in agreement: "Yes! Researcher Liu's suggestion is very constructive."

After more than two hours in total, they finally formulated a preliminary plan.

Drill 12 boreholes within a radius of 2 kilometers around the reactor, and then fill all the rock and soil layers above 1,200 meters underground with crystalline rock-forming agent to create a 1,200-meter-thick artificial rock layer to completely isolate groundwater.

In addition, in a week's time, a large land-building ship transferred from the South China Sea will arrive in the waters near Fukushima.

The main reason why a land ship was built was that there was a large water purification system on the land ship. After replacing multiple membranes and precision control systems, the water purification system can filter out all radioactive materials.

The tritium-containing superheavy water together with the isotope can be completely separated through the double filtration membrane.

Land shipbuilding also has another task, which is to build an integrated seawall with a height of about 20 meters and a width of 100 meters to completely separate the nuclear power plant from the ocean.

As for the investment in these projects, it is natural that the wool comes from the sheep. Tokyo Electric Power can generate hundreds of billions of dollars in revenue every year. This money is now in the hands of Pacific Nuclear Power Group. There is no pressure on the billions in processing costs.

What's more, the Fukushima area is now deserted, especially the areas hit hard by nuclear pollution, which have basically become no-man's land. The pollutants on these lands can still be reused after treatment.

the other side.

That afternoon.

After the 125 atonement personnel arrived at the camp, Zhong Changming began to organize special training, preparing to let them enter the reactor inside a few days and clean out the reactor core bit by bit.

The radioactivity inside the reactor is extremely huge, and coupled with the temperature of more than 2,000 degrees Celsius, it is difficult for any robot to get close to the inside of the reactor.

Therefore, manpower entering it became the only feasible solution.

The frightened and helpless atonement officers put on simple exoskeletons in a training ground transformed from an abandoned sports ground. This was a specially modified unpowered exoskeleton to cope with high radiation and strong interference environments, where ordinary exoskeletons cannot Designed for use.

Using ultra-lightweight materials and design, the entire exoskeleton equipment only weighs 7.1 kilograms.

But this is only the weight of the exoskeleton. To enter the interior of the high-temperature and high-radiation reactor, they must be equipped with heat insulation layers, radiation protection layers, oxygen bottles, and manual mechanical refrigerators.

The entire set of equipment does not have any electronic equipment, and even the photos are taken using retro mechanical cameras.

In order to resist radiation and high temperatures, engineers have also racked their brains and replaced them with simple mechanical structural equipment as much as possible.

Time flies, more than a week has passed.

Large land-building ships transferred from the South China Sea began to work on the seashore to separate radioactive substances, salt impurities, and pure water from the seawater.

Then quickly build a seawall. The construction of this seawall is to mix salt with nearby seabed sediment, add rock-forming agent, add a layer of sodium chloride-silicon oxide, and finally silicon nano-coating. integrated building.

The construction materials and models of this kind of super highway can be constructed quickly and can withstand earthquakes. At present, domestic nuclear power plants have fully switched to integrated super buildings to ensure that in an emergency, problems will not easily occur.

And at the same time.

Around the reactor of the nuclear power plant, four shale oil drilling machines have also started drilling for a long time, and have drilled more than 200 meters so far.

Shen Xinghai and Liu Xin stood on a large crane, looking down at the reactor diagonally below. The top of the reactor had been sealed with concrete.

But as a nuclear safety expert, Shen Xinghai understood that this was only a temporary measure. As long as the core in the reactor was not processed, the cement coffin would burst sooner or later.

Because nuclear reactions are still occurring continuously in the reactor core, the nuclear energy that should have been converted into electrical energy and hot waste water is continuously accumulating inside the reactor.

This is also the reason why TEPCO continuously pumps seawater into the reactor to reduce internal heat accumulation.

The high-temperature interior will produce a large amount of hydrogen, water vapor, and carbon dioxide, and the concrete containment vessel is prone to secondary explosions.

Since these water vapor, carbon dioxide and hydrogen are in direct contact with nuclear fuel, part of the carbon, hydrogen and oxygen must have undergone isotopic transformation due to neutron irradiation.

The atonement personnel who had just completed preliminary training, wearing thick protective clothing, drilled a hole in the containment vessel, inserted an exhaust pipe, and sealed the drilled gap.

The exhaust pipe is connected to a radioactive material filtering vehicle 1.7 kilometers away, which separates radioactive atoms and discharges non-radioactive materials into the environment.

However, this kind of filtration work causes very serious damage to the filter membrane. Basically, a membrane that can be used for several years may not last for half a month under radiation bombardment and will be completely scrapped.

Five days later, when the contaminated gas inside Reactor No. 1 was brought under control.

The five atonement personnel wore exoskeleton protective suits and quickly entered the No. 1 reactor through the temporarily modified safety channel, each performing their duties.

One person quickly took photos, while two people operated a special mechanical long rod and inserted it into the melting zone of the reactor core filled with hot cooling water.

Another person held a liquid nitrogen tank and sprayed liquid nitrogen around to cool down.

After they dug up a piece of solidified core crust, the two quickly pulled the long mechanical pole and ran outside.

At this time, the last atonement person injected a stream of lead powder and boric acid into the bottom of the cooling water. These substances can slow down the reaction speed of the nuclear fuel.

TEPCO has invested a large amount of lead powder and boric acid before, but these things have a shortcoming. While slowing down the reaction speed of the nuclear fuel, they will also form a hard shell layer on the surface of the molten core, blocking the cooling water and the heat of the molten core. Exchange, causing the molten core to sink a little.

Unless like now, knock off a piece, re-inject it, and clean out the core bit by bit.

When the first group of atonement workers finished their work, the second group quickly stepped in.

Although it is not a pity for these guys to die, the work ahead is very long, and a quick shift can at least save their lives.

Just like ants moving, digging out the nuclear fuel from the inside bit by bit, it will take at least 3 to 4 months to clean up the four reactors.

Thank you for your support (ω｀)