The world's nuclear wastes are categorized according to their degree of radioactivity, in order of very-low-radioactive-waste, short- or long-term-low-radioactive-waste, medium-radioactive-waste and long-term-high-radioactive-waste. These wastes come in different forms, from different sources and with different levels of contamination.
Extremely low-level radioactive waste can be decomposed by nature very quickly after simple treatment, and the level of pollution to the environment is extremely low. In terms of its individuality, the radioactivity is low, and the pollution to the environment is small. However, in terms of its quantity, the number is quite huge, and the post-processing is also more troublesome. As we all know, nuclear energy is recognized as a clean energy source, and many countries are looking for better ways to make full use of it. Of course, with the high-frequency use of nuclear energy, a lot of wastes that can not be reused have piled up, and their number is increasing like snowballs tumbling on the snow, and many countries are facing the problem of radioactive waste disposal.
Low- and medium-level radioactive waste is not only generated in the military, but also in medicine, science and technology, and other important fields. Nuclear energy is not only used for military purposes, but people have also discovered other wonderful uses for nuclear energy, which has led to the flourishing of nuclear energy and the accumulation of radioactive waste. The flaw detectors used in geological surveys, the radioactive treatment equipment used in the medical field, and the smoke alarms often used in factories are all radioactive, and they are all derivatives of nuclear energy, and when they are discarded, their radioactivity is also difficult to disappear, and they need to be processed over a longer period of time. We all know that radioactive substances are harmful to the human body, although the Curie couple discovered a very important chemical element, but because of the long-term in a radioactive environment, the body is getting weaker and weaker, the life expectancy is greatly reduced.
Long-term highly radioactive waste is clearly the most destructive degree of radiation, strong enough to be sealed as ? Ten thousand years of evil spirits? It can be seen that the degree of destruction is beyond imagination, but also extremely difficult to deal with. Long-term highly radioactive waste is long-lived, highly radioactive, and also highly toxic, mainly referring to spent fuel. After being discarded, these wastes are still undergoing natural fission, and their toxicity is still very high, and people's concern about them is only increasing.
Everything has a relative side, a double-edged sword, and nuclear energy contributes as well as pollutes. If we deal with the problem of nuclear pollution, global development will be further advanced.