Nuclear Waste Storage
The nuclear waste material is the useless waste material after screening from the nuclear reactor and the process of nuclear fuel production and machining (Michio and Jennifer, 1983). There are three characteristics of nuclear waste material. The first one is it has radioactivity, it can radiates harmful radial and can not use normal physics, chemistry or biology method to eliminate. The second characteristic of nuclear waste material is radiation hazards. It means when the harmful radial from nuclear waste material touch stuffs can make some hazard damage, such as burn people’s skin. The third characteristic is generating heat. After a series of reaction, the nuclear waste material will generate a lot of heat from the inside and makes pollution (Wang, 2009). Therefore, because of those dangers characteristic, how to handling and storage the nuclear waste materials safety and permanently is a serious problem for every country.
Scientists from many countries used to think about several ways to storage the nuclear waste materials, and the way to storage is according three types of specificactivity nuclear waste materials, which are high-level wastes, mid- level wastes and low-level wastes. There are two necessary requirements about safety and permanently storage the nuclear waste materials, a sealing container and a safe place. Because of some kinds of high-level wastes have over ten thousand year radiate period, so it is hard to find a sealing container can contain in such so long time, therefore it is a big problem to scientists. The safe place is easier to find than sealing container, it can be the universe, land or sea, but he common method is cover some mid-level wastes and low-level wastes under the ground about twenty or thirty meters deep, then build a radiation barrier around the storage pit. Most of low-level wastes and mid-level wastes will become harmless to human and environment. However, the high-level wastes are not easy like that, most of them will stay harmful above ten thousand year, and so scientists put them into a metal sealing container and drop it into the sea over four thousand meters deep. Scientist had also gave out some ideas to storage high-level nuclear waste materials, such as send them to the space by rocket, but it costs too much and launch the rocket has chance to fail. The other idea is put them on the ice cap of North Pole or South Pole, because the high-level wastes can release heat by itself and thaw the ice cap, then sunk into the button of ice layer, covered by the deep ice. However, this idea also has defect, because the geology of the ice cap is uncertain, it changes all the time, so this idea does not work, either.
The consequence of storage nuclear waste material unsuitable is destructive. Only ten milligram of an element from high-level waste can kill a human, and it can also destroy environment unrecoverable in ten thousand years. An example of nuclear waste leak from the Soviet Union is in the last century. The Lake Kyzyltash near the city Chelyabinsk used to be a beautiful place, a fairyland for the wild animals. However, in the Cold War period, the Soviet Union in order to save the cost, dumped the high-level nuclear waste materials into the river which near the Lake Kyzyltash, and made a serious ecological disaster, because of the nuclear pollution, the lake became a dead water, the environmentalist from Russia said that the lake can not be recovered at least ten thousand years to hundred thousand years (Arjun and Katherine, 2000). Another famous example of nuclear leak accident is Chernobyl Nuclear Power Station accident in Ukraine. In April.26 1986, the No.4 nuclear reactor had exploded by power excursion. The hazard radioactive materials were released into surrounding areas, and the exploding triggered a fire disaster, the hazard radioactive materials had been bring into the cloud and blew into many other countries, fifty-six people dead because of this accident, two hundred thousand people had been influenced by the nuclear pollution, and over thirty three thousand residents had to move out from their home town (Ukaea, 1989)
Even though the consequences of unsuitable store nuclear waste is horrible, but the nuclear has also bring people many benefits, such as the nuclear power station, which can provide huge number of power; The nuclear ship, which can round the world for many times and do not need to stop; The nuclear apparatus, which can be used to cure cancer. Therefore the nuclear is just likes a double edged sword, people need to take the responsibility to protect the environment, otherwise we will get the serious punishment, so hope people can protect this big homeland well.

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Work Cited:
Arjun, M. & Katherine, Y. (2000). Nuclear Wastelands: A Global Guide to Nuclear Weapons Production and Its Health and Environmental Effects.
Michio, K. & Jennifer, T. (1983). Nuclear Power: Both Sides.
Ukaea, R. (1989). The Chernobyl nuclear power station accident: One year afterwards.
Wang, L. (2009). Advances in Transport Phenomena