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RADIOACTIVE WASTE , DISPOSAL AND MANAGEMENT

RADIOACTIVE WASTE , DISPOSAL AND MANAGEMENT. Ms. Nayana Deb Goswami Lecturer in Geology KHEMUNDI COLLEGE; DIGAPAHANDI. TO BE DISCUSSED. RADIOACTIVE WASTE DISPOSSAL EFFECT ON ENVIROMENT MANAGEMENT. WASTE.

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RADIOACTIVE WASTE , DISPOSAL AND MANAGEMENT

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  1. RADIOACTIVE WASTE, DISPOSAL AND MANAGEMENT Ms. Nayana Deb Goswami Lecturer in Geology KHEMUNDI COLLEGE; DIGAPAHANDI

  2. TO BE DISCUSSED • RADIOACTIVE WASTE • DISPOSSAL • EFFECT ON ENVIROMENT • MANAGEMENT

  3. WASTE A material, substance, or by-product eliminated or discarded as no longer useful or required after the completion of a process.

  4. RADIOACTIVE WASTE Radioactive waste is waste that contains radioactive material. Radioactive waste is usually a by-product of nuclear power generation and other applications of nuclear fission or nuclear technology, such as research and medicine.

  5. RADIOACTIVE WASTE

  6. TYPES OF RADIOACTIVE WASTE • LOW LEVEL WASTE • INTERMEDIATE WASTE • HIGH LEVEL WASTE

  7. LOW LEVEL WASTE

  8. LOW LEVEL WASTE Low-level waste (LLW) has a radioactive content not exceeding four giga-becquerels per tonne (GBq/t) of alpha activity or 12 GBq/t beta-gamma activity. LLW does not require shielding during handling and transport, and is suitable for disposal in near surface facilities.

  9. INTERMEDIATE WASTE Intermediate-level waste (ILW) is more radioactive than LLW, but the heat it generates (<2 kW/m3) is not sufficient to be taken into account in the design or selection of storage and disposal facilities. Due to its higher levels of radioactivity, ILW requires some shielding.

  10. HIGH LEVEL WASTE High-level waste (HLW) is sufficiently radioactive for its decay heat (>2kW/m3) to increase its temperature, and the temperature of its surroundings, significantly. As a result, HLW requires cooling and shielding.

  11. SOURCES OF RADIOACTIVE WASTE • RADIOACTIVE MINERALS • COSMIC RAYS • RADIO NUCLIDES

  12. RADIOACTIVE MINERALS The mineral containing uranium-238,Thorium-232,PLUTONIUM-239,ETC Are capable of emitting energetic radiations causing pollution

  13. COSMIC RAYS • The cosmic rays containing highly energetic particles reach the surface of the earth Causing pollution . • the intensity of cosmic rays depends upon the latitude and altitude Of the place . • the intensity is the maximum at the poles and minimum at the equator.

  14. RADIO NUCLIDES • The unstable radio nuclides in the atmosphere can be splitted up into smaller particles • The smaller radio nuclides enter into the body of organism along with air during respiration

  15. SOURCES OF MANMADE POLLUTION

  16. NUCLEAR POWER PLANTS Nuclear power plants emit radiation to a very small extent except accidental leaks

  17. RADIOACTIVE WASTE The nuclear power plants produce a lot of nuclear radio-active wastes. The dispossal of these waste has become a global problem. Some countries producing large quantity of nuclear Wastes dump them in ocean near other countries

  18. NUCLEAR EXPLOSION • During nuclear explosion, a large number of radio-nuclides are genereted in the atmosphere. • The radio nuclides settle down with rain contaminating the soil and water bodies. • Finally these enter into food chain causing serious problem to the living organism

  19. RADIO ISOTOPES • Radio isotopes are also prepared artificially either by nuclear fusion or by nuclear fission. • If these radio isotopes are not properly handled , these emit radiations causing pollution

  20. EFFECT OF RADIOACTIVE • STORAGE • AFFECT ON NATURE • ACCIDENT • SCARVENGING • TRANSPORTATION • HELTH EFFECT • EXPENCE

  21. STORAGE Storage of radioactive hazardous waste that remain radioactive for thousands of years .which mix with the environment and causes pollution

  22. THANK YOU

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