This can be stored in dry stores, in any suitable place where access is denied to the public. The activity levels will be such as not to harm operators of the plant, but the public should be kept out to limit exposure to as few as possible and to avoid anyone removing any of the waste. On power stations it will be in dry rooms probably underground. For medical waste there will probably be a central store, this could be on a hospital site or one used by several hospitals.
Radioactive waves
Nuclear fusion produces very little waste compared to nuclear fission. The waste produced by nuclear fusion is mainly low-level radioactive material, which is easier to manage and has a shorter lifespan.
Low and intermediate level waste from Koeberg is transported by road in steel and concrete containers to a remote disposal site at Vaalputs, 600km away in the Kalahari Desert. However high level waste (the spent fuel) is stored on site. The spent Uranium 235 rods are currently stored on high-density racks submerged in a reactor pool. The rods take 100 000 years to decay, and between 30 and 50 years to cool down to reach the boiling point of water
There are well established methods and approaches to deal with and store radioactive waste based on the waste form (solid, liquid. gaseous) and the radioactivity level (low, intermediate, high).the methods that are applied to store:high level nuclear wastes as spent fuel or the spent fuel reprocessing products; are either in wet storage (under water in pools), dry storage (e.g. in casks), or vitrified wastefor intermediate and low level radioactive waste they are either incinerated or compressed and then contained in barrels, sometimes mixed with cement or asphalt.
High-level radioactive waste is highly radioactive and generates significant heat, typically resulting from nuclear reactor operations and spent nuclear fuel. It requires extensive shielding and long-term management, often stored in deep geological repositories. In contrast, low-level radioactive waste contains lower levels of radioactivity and can include items like contaminated clothing or tools. It generally requires less stringent handling and can often be disposed of in near-surface facilities.
Nuclear waste refers to materials that remain after the use of nuclear fuel in reactors or during the production of nuclear energy, while radioactive waste specifically includes materials that emit radiation due to their unstable atomic structure. This waste can be categorized into low-level waste, which contains low amounts of radioactivity, and high-level waste, which is highly radioactive and requires careful handling and long-term storage solutions. Proper disposal and management of both types of waste are critical to prevent environmental contamination and protect public health.
Mexico belongs to the World Nuclear Association and the International Atomic Energy Agency. As such, it follows both agencies recommendations in terms of nuclear waste management. Currently (2018) it includes spent fuel storage facilities at the Laguna Verde nuclear power plant. Low-level waste is stored at a near-surface disposal site at La Piedrera, in the northern state of Zacatecas, since 1985.
In the US it is not, all such programs have been killed. High level waste is stored onsite in large pools of water to keep it cool while it decays. Low level waste (e.g. contaminated clothing, contaminated tools, contaminated medical items) are stored underground: in earth filled trenches dug on the surface.
Nuclear waste can be divided into two types, high level, and low level. Low level nuclear waste is materials that have been exposed to nuclear materials, such as tritiated water, pieces of contaminated clothing, contaminated tools, materials that have been in the nuclear reactor or with the high level waste, earth that has had contaminated water soak into it, and so on. Some of these are stored at the plant, and others are shipped off to low level waste storage facilities. They are separated according to need. Some may need to be stored for a period of decades or centuries while the materials in them decays, and others may need to be stored for centuries. High level waste needs to cool off before anything can be done with it, so when it is removed from a reactor, it is put into a spent fuel pool where it is cooled with water while the short term isotopes in it decay to the point that they do not give off too much heat. This takes several years. At that point, the waste may be moved to what is called dry cask storage, where it is held until someone decides what to do with it on a more permanent basis. Some countries allow waste to be reprocessed and some do not. The United States does not, and since no one has figured out how to store waste over a long term, the waste accumulates at the plants that produced it. This is not a good solution because the plants are nearly all sitting on the shore or on river or lake banks, where they are exposed to some degree. The French have been very aggressive with reprocessing nuclear waste, and do it for a number of other countries. This is fine, except that the reprocessing has its own set of possibilities of disaster, the very reason the United States does not allow reprocessing. There are technologies being developed, such as energy amplifiers or accelerator driven systems, that may be able to use the nuclear waste as an energy source, reducing it to radiologically inert material in the process. We do not know if this will work.
In the U.S., radioactive waste is divided into three main types, classified according to their activity, their heat generation potential, and what they physically contain. These three main levels are low level waste (LLW), transuranic waste (TRU), and high level waste (HLW). For each of these types of waste, there is a specific disposal solution -- above ground storage or shallow burial for low level waste and deep repository storage for transuranic and high level wastes. In most other countries, nuclear waste is categorized as low level waste, intermediate level waste, and high level waste. The reason for this different classification system is that in the U.S. waste is classified based on where it comes from; in most other countries, waste is classified according to what the effects of the waste might be. In both classifications, low level waste represents about 90% of all radioactive waste
There are different kinds of nuclear waste, and different storage for them. Low level was is stored on site in secure facilities, then shipped to disposal facilities. There are three such facilities operating in the United States today that accept low level waste from nuclear power plants, along with several others managed for the government by the Department of Energy. At these facilities, the low level waste is buried at depths that depend on the nature of the waste. Low level waste has small amounts of radioactive materials with short half lives. High level waste, which is the spent fuel, is another matter. There is no permanent storage facility for this waste, and there is currently no plan for one. The problem with it is that it is very long lived, and very dangerous. The amount of time it takes to return to the danger level of naturally occurring uranium ore is about 6 million years. This waste has to be stored in a spent fuel pool, a tank of water, for the first five or six years after it is removed from the reactor, so it can cool down and lose some of the material in it with short half lives. After spending time in the spent fuel pool, the waste is put into what is called dry cask storage, where it will remain, continuing to cool by air convection. The casks are made of concrete, are very heavy, and are designed to last for decades. We have no idea where they will go after the dry cask storage.
Radioactive waste will be managed through a combination of storage, treatment, and disposal methods. Low-level waste may be treated and then stored in licensed facilities, while high-level waste is typically cooled and stored in secure containers at nuclear plants before being transported to deep geological repositories for long-term disposal. Ongoing research is focused on improving waste management technologies and ensuring safety. Ultimately, the goal is to isolate radioactive materials from the environment for thousands of years until their radioactivity decreases to safe levels.