Discussion: Nuclear Waste Processing Technology
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Use of nuclear energy generated by nuclear waste will produce dangerous radiation, and the effects will last for thousands of years, the world's scientists are studying how to deal with nuclear waste, only properly handle this issue, nuclear energy can be more advantages than disadvantages, and standing reduction point of view, the use of nuclear energy can be no doubt largely reduce greenhouse gas emissions.
On the nuclear waste problem, the low-E type of nuclear waste, is now available means of safe disposal through landfill; for high-radiation nuclear waste processing, and some countries such as Sweden, Finland, etc., have made some research for example, by separation, recycling and burning, etc. reduce the radiation, to meet safety standards after treatment.
Currently, nuclear waste handling and disposal of general sub-sea and land are two ways to deal with. Most countries have adopted a marine treatment, about nuclear waste barrels into the selected area to 4,000 meters below the seabed. Experiments show that even if the nuclear waste barrel invested in 6,000 meters below the seabed will not break, leak. Is a bad case of iron in the submarine, splitting it up the dose Yat reach all parts of the sea, only the human body intake (100 millirem per year) of 1/10000000, generally will not bring harm to people. Moreover, in order to ensure the safe handling, even when countries put under international supervision. Land-based nuclear waste disposal has a relatively reasonable side. Low-level radioactive waste buried in shallow ground, the high-level radioactive wastes are buried in thousands of meters deep below the earth's crust, in general, there is no risk of contamination. Moreover, land burial of nuclear waste, some are not suitable for marine processing, and if necessary, land burial of waste can be recycled.
Ruhr University physicists said they have developed a new technology that can reduce nuclear waste into harmless material time. British Science Association's "Alpha Galileo" website reported that the principle of this new technology is placed in metal containers of nuclear waste in its cooling to ultra-low temperature, so the speed of decay of radioactive material would be accelerated, the also shorten the half-life. Physicists involved in the study, said the use of this technology in the next few decades rather than thousands of years of time to make nuclear waste into harmless substances. This method can greatly shorten the half-life of radioactive particles, so that need not be buried nuclear waste in underground repositories. Reported that the study is still at a preliminary stage. Researchers are the harmful components of nuclear waste radium -226 study to verify the practicality of this new technology. The new reactors can
of nuclear waste into useful products of inertia will expand the application of nuclear energy to provide new hope. Central Russia and Israel Energy Resources (EER) the company's scientists announced in late March 2008, has contained radioactive, hazardous nuclear waste into inert byproducts such as glass, the useful and clean energy. And near Karmiel in northern part of the facilities into use a medium-sized waste treatment reactor. Use of gas called plasma melting technology (PGM) system from the Russian Research Center Kurchatov Institute, Russia, and Israel Institute of Technology Research Institute Radon development, EER will high temperatures and low radiation energy together to make waste change. Alleged waste reactor environmentally friendly. The reactor will combine three processes: cracking waste using plasma moments, re-gasification of carbon waste, and finally converted into the inorganic composition of solid waste. The remaining material is inert, the construction industry used to produce tiles, porcelain and so on. Karmiel facility capacity of 500 ~ 1000kg of waste per hour conversion.
Radioactive waste in the United States and the world is facing a big problem. American University Professor of Chemistry Edward ChienWai After 20 years of research, on September 1, 2008 announced the development of radioactive nuclear waste from the ashes of uranium recovery technology, this new recycling equipment through efficient, environmentally friendly technologies can be nuclear waste re-used as fuel, the development of this technology is from coffee, caffeine removal process inspired by the invention. The future of this technology is expected to become the most dangerous radioactive waste material recycling breakthrough.
by: gaga
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