Recently, a piece of news has attracted the attention of the world to China, China has created an artifact that monopolizes the global nuclear industry, "Daystar II", solving the world's unsolved problems for decades, the United States spent six hundred billion yuan to buy and was rejected, what is the great point of Daystar Ii?
Can the United States pull down the old face and ask China for cooperation? In the face of the Stalking of the United States, how should China deal with it? Today, follow Xiao Mu to understand, new audience friends, you can long press the like to highly recommend it, so that more people can see the video of this issue, in recent years, with the continuous development of China's economy.
China's consumption of resources is also more and more serious, so environmental pollution has gradually become a topic of widespread concern to the people of the world, china for this reason continue to study new equipment, used to suppress environmental pollution, nuclear energy as a new type of energy, with clean energy and other characteristics, in recent years by the love of various countries!
But if you can't deal with the residual residue after the nuclear reaction, it may cause many disasters, so China spent ten years to study nuclear power generation and treatment technology, in order to improve energy efficiency at the same time, but also to ensure the safety of the people and the reliability of power generation, then where does nuclear energy come from?
First of all, we must know that the world's matter is made of atoms, and atoms are composed of atomic nuclei and the electrons around them, of which the relatively light mass of the nucleus can produce energy through nuclear fusion reactions through fusion, and the heavy atomic nuclei are the energy generated by nuclear fission reactions.
Nuclear power generation is the use of nuclear fission to release heat energy, power generation, it is currently an important way to achieve low-carbon power generation, the world is now operating nuclear power plants, a total of 442, accounting for sixteen percent of the world's total power generation, of which the largest number of nuclear power plants are Japan, the United States and France.
Although with the increase in the number of nuclear power plants, the pressure of energy shortage in economically developed areas of various countries has been alleviated, but these nuclear power plants provide energy at the same time, but also produce a large amount of nuclear waste, these highly radioactive nuclear waste, have a huge threat to the environment and the human body, so nuclear waste disposal problem!
Gradually become a world concerned by the problem, next we will look together, to see how countries are dealing with nuclear waste, nuclear waste is a nuclear power plant operation produced, containing radioactive substances, from a technical point of view, nuclear waste can be divided into high radioactivity, and low radioactivity three categories.
Highly radioactive nuclear waste mainly refers to combustion residues including nuclear fuel, medium and low radioactive nuclear waste includes, contaminated equipment of nuclear power plants, testing equipment, waste water and waste liquid, etc. The harm of medium and low radioactive nuclear waste is relatively small, while highly radioactive nuclear waste contains a variety of radioactive elements that are extremely harmful to the human body!
For example, 7 to 8 mg of plutonium is enough to make people fatal, so for different nuclear waste, its treatment methods are also different, there are two internationally recognized nuclear waste treatment methods, one is to directly treat nuclear waste, into a special tank, and then buried under a deep formation, the other is to fill the metal can containing nuclear waste.
Sinking to the seabed below four thousand meters, China's treatment of high-emission waste is the latter, that is, the nuclear waste is first sent to the disposal site for vitrification, and then it is put into the formation for landfill, for now! The safest way to dispose of nuclear waste is to permanently bury nuclear waste in repositories.
However, in many countries in the West, due to the opposition of relevant environmentalists, it is very difficult to find a suitable place to store nuclear waste, so they are more inclined to temporarily store medium and low radioactive nuclear waste, while expecting safer and more acceptable treatment technologies and methods to appear, and then dispose of their stored nuclear waste.
As the world's largest producer of nuclear waste, the United States has hundreds of nuclear power plants that produce about two thousand tons of nuclear waste every year, of which highly radioactive nuclear waste is everywhere, thirty-one storage sites in thirty-nine states, the United States spent 96.2 billion US dollars to build, the first nuclear waste treatment plant, Longkashan nuclear waste disposal site.
It is planned to encapsulate the nuclear waste in a huge steel container and then send it into the underground storage tunnel, after 100 years of operation, when the storage capacity reaches 100,000 tons, and then the tunnel will be permanently closed, although burial in situ is a common method in various countries, but it does not mean that it does not have a safety hazard, heat is first of all a big problem, when a nuclear waste has just come out of the reactor.
The heat it produces is equivalent to thirty blowers, which means that if this nuclear waste is buried in the ground for a long time, the heat it produces will be enough to evaporate the groundwater into water vapor, and once the water vapor corrodes the nuclear waste container, it will lead to nuclear leakage and other problems, and the consequences are unimaginable!
Leaked radioactive elements will also spread with the groundwater, human beings will be exposed to a large amount of radiation unconsciously, if only simply disperse the nuclear waste storage, while reducing heat, the storage capacity will also be greatly reduced, there is also the problem of radioactive decay, high-energy particles and surrounding matter interaction.
Leading to the release of a large amount of hydrogen, and hydrogen as an explosive and flammable gas, at any time will trigger the spontaneous combustion of nuclear waste, so the underground storage of nuclear waste is still a subject that requires long-term research, One-third of Japan's current electricity comes from nuclear reactors, and nearly nine hundred tons of nuclear waste are generated every year.
Japan's Ibaraki Prefecture and Fukui Prefecture as the main storage places for nuclear waste, decades of cumulative nuclear waste storage tanks have exceeded 300,000, each capacity of about 200 liters, and the annual rate of 10,000 is increasing, so Japan's annual investment in nuclear waste storage tanks, are as high as 600 million US dollars, which is far from enough!
Japan began building a treatment plant in Aomori Prefecture in 1993 that specializes in collecting and processing nuclear waste, which was originally scheduled to be officially put into use in 2008, but due to its technical failures during testing, it has not been able to operate normally so far!
On March 11, 2011, the world's worst nuclear accident to date, the Fukushima nuclear accident in Japan, caused a large amount of radioactive material to leak, causing irreparable damage to the marine environment, food safety and human health, even so! Japan still does not recognize the seriousness of the matter.
In 2018, relevant media reported that Japan still plans to discharge Fukushima nuclear sewage into the sea, although Japan claims that the nuclear sewage discharged into the sea has cleaned up the highly radioactive elements, and the radiation content of the wastewater is even lower than the radiation of the water in the natural environment, but because of its previous irresponsible behavior.
As well as the opacity of related procedures, countries are suspicious of Japan's statement, in fact, this is not the first time that the Japanese side has done so, in the year of the Fukushima nuclear power plant accident, Japan has secretly discharged a part of the wastewater into the ocean, speaking of this, everyone must have doubts!
Since the United States and Japan have problems with the way nuclear waste is handled, how should China respond? China is currently through the establishment of a permanent high-emission nuclear waste treatment device, the treatment of nuclear waste, the current estimated construction time is a hundred years, after the completion of the construction of the project, the expected service life can reach 10,000 years!
Now China generally or nuclear waste temporarily stored, nuclear power plants self-built boron pool, through the boron pool will remove most of the energy in the nuclear waste, filled and then transferred to the national unified, radioactive nuclear waste disposal bank, for further treatment, for the treatment of nuclear waste at low and medium levels, it strictly complies with national standards and the requirements of the International Atomic Energy Agency!
Whether it is solid nuclear waste or liquid nuclear waste, it must be cured, and then loaded into two hundred liters of stainless steel barrels, transported to the disposal depot, high-emission nuclear waste is post-treatment, first the nuclear waste is sent to the disposal site, and then glass cured, and then buried in at least five hundred meters of underground layer!
At present, China already has two medium and low radiation nuclear waste disposal banks, and intends to invest in the construction of two high-radioactivity nuclear waste disposal banks, which are expected to be completed in the middle of the 22nd century, not only that, in 2017, China's independent research and development of Daystar II for the treatment of nuclear waste also successfully passed the test.
Daystar II can make high-life, highly radioactive, nuclear waste reduce decay time, reduce radioactivity, while also reducing the volume of nuclear waste, the equipment is based on ads transmutation technology, and ads transmutation technology is currently the world's most efficient technology for processing nuclear waste.
It uses the internal lead-cooled substance to eliminate the radiation present in the nuclear waste, and then converts the energy released by it into electrical energy and reuses it, so that the efficiency of the use of nuclear fuel has increased to 95%, so the advent of China's Qixing No. 2 has undoubtedly shocked the world.
As we all know, the United States began to develop nuclear power plants as early as the last century, the emergence of nuclear power plants, for the United States to bring a large number of power resources, but everything is a double-edged sword, nuclear power plants also brought a heavy burden to the natural environment, Japan's Fukushima incident is an example, all the developed countries in the world.
Has been studying ways to deal with nuclear waste, but they have not succeeded, only China has done it, which represents the strength of our country and the progress of science and technology, as early as the day when Venus II has not yet completed the test, Japan tried to buy China's core technology at a high price.
After China refused, the United States actually proposed to spend six hundred billion yuan to buy, but China still did not agree, on the one hand, Daystar No. 2, as China's core technology, must be firmly in its own hands, so as to gain a firm foothold in the world, on the other hand, it is also because this technology is not mature enough!
There are still many difficult problems that need to be solved, in a responsible attitude, it can not be promoted and used in the world, looking back at China's century-old growth history, from the research and development of China's atomic bomb to the advent of Daystar II, all show China's desire for advanced science and technology, backward to be beaten lessons!
Constantly motivating the progress of the Chinese people, the future of China, on the road of scientific and technological development, will ride the wind and waves, well the above is the content of this issue, today's video content to this end, welcome to comment on the message in the message area, if you like this issue of the video, remember to long press the like button below the screen, our next video, not to see or scatter!