Nuclear waste is categorized as high, intermediate, or low-level waste and is produced from nuclear power plants, weapons, and other sources. High-level waste contains 95% of radiation and is disposed of through deep geological storage. Procedures to remove intermediate and low-level wastes include near-surface disposal and methods using bacteria or sulfide sponges that can absorb radioactive materials. While disposal is commonly used, new techniques showing promise in more quickly removing radiation include the Notre Dame Thorium Borate and sulfide sponges.
The above presentation describes the history,source,danger and effects,classification, and storage and disposal methods of radioactive waste. It also states the advantages and disadvantages of nuclear and radioactive waste
The above presentation describes the history,source,danger and effects,classification, and storage and disposal methods of radioactive waste. It also states the advantages and disadvantages of nuclear and radioactive waste
This presentation contains information about Radioactive pollution and its effects, sources etc.
It also contains where radiation is useful for human beings.
Some cases of radioactive blasts.
prevention of radiation and conclusion.
A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.
A chemical accident is the unintentional release of one or more hazardous substances which could harm human health or the environment. Chemical hazards are systems where chemical accidents could occur under certain circumstances. Such events include fires, explosions, leakages or releases of toxic or hazardous materials that can cause people illness, injury, disability or death.
This presentation contains information about Radioactive pollution and its effects, sources etc.
It also contains where radiation is useful for human beings.
Some cases of radioactive blasts.
prevention of radiation and conclusion.
A nuclear explosion is an explosion that occurs as a result of the rapid release of energy from a high-speed nuclear reaction. The driving reaction may be nuclear fission, nuclear fusion or a multistage cascading combination of the two, though to date all fusion-based weapons have used a fission device to initiate fusion, and a pure fusion weapon remains a hypothetical device.
A chemical accident is the unintentional release of one or more hazardous substances which could harm human health or the environment. Chemical hazards are systems where chemical accidents could occur under certain circumstances. Such events include fires, explosions, leakages or releases of toxic or hazardous materials that can cause people illness, injury, disability or death.
What is Recycling: 7 Benefits of RecyclingPacebutler
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Engineering Research Publication
Best International Journals, High Impact Journals,
International Journal of Engineering & Technical Research
ISSN : 2321-0869 (O) 2454-4698 (P)
www.erpublication.org
Presentation includes a brief introduction of radiation and its types, processing and disposal methods of different radioactive waste and a note on nuclear accidents.
This sort of hazardous garbage includes radioactive substances known as radioactive waste. Nuclear medicine, nuclear research, nuclear power production, rare-earth mining, and nuclear weapons reprocessing all produce radioactive waste. Government authorities control the storage and disposal of radioactive waste to safeguard both human health and the environment. In general, it is divided into low-level waste (LLW), intermediate-level waste (ILW), and high-level waste (HLW). LLW includes things like paper and rags; ILW includes things like tools and clothing, and HLW includes things like highly radioactive and hot decay heat that requires cooling and shielding.
In general, it is divided into low-level waste (LLW), intermediate-level waste (ILW), and high-level waste (HLW). LLW includes things like paper and rags; ILW includes things like tools and clothing, and HLW includes things like highly radioactive and hot decay heat that requires cooling and shielding. About 96 percent of spent nuclear fuel is recycled in nuclear-reprocessing facilities into uranium-based and mixed oxide (MOX) fuels. Fission products, which account for the remaining 4%, are very radioactive High-Level Waste. Storage facilities are used to keep the radioactive material safe for a long enough time so that it does not represent an immediate threat.
Source of the Radioactive Waste:
A variety of sources produce radioactive waste. The nuclear fuel chain and nuclear weapons manufacturing generate vast waste in nations with nuclear power plants, nuclear armament, or nuclear fuel treatment facilities. Aside from natural radioactive materials (NORM) that may be concentrated in coal, oil, gas production or consumption, and certain minerals, other sources include medical waste and industrial waste.
Classification of the Radioactive Waste:
In each nation, radioactive waste is classified differently. An important role is played by the International Atomic Energy Agency (IAEA), which produces the Radioactive Waste Safety Standards (RADWASS). The percentage of garbage created in the United Kingdom by different material categories.
• Low-Level Waste (LLW)-94%
• Intermediate-Level Waste (ILW) ~6%
• High-Level Waste (HLW)- <1%
1. Low-Level-Waste (LLW)
In addition to nuclear fuel cycles, low-level waste (LLW) is created in hospitals and industries. Paper, rags, tools, clothes, and filters are examples of low-level waste because they contain minuscule levels of radioactivity, most of which have a short half-life. Even though there is only a distant potential for contamination with radioactive elements, goods originating from any portion of an active area are routinely categorized as LLW as a preventive measure. Non-active material, such as a regular office complex, often has no more significant radioactivity than expected from such LLW. Medical tubes, animal corpses, wiping cloths, and more are all examples of LLW. LLW waste accounts for 94% of the UK's total radioactive waste volume.
Radioactive contamination occurs when radioactive material is deposited on or in an object or a person. Radioactive materials released into the environment can cause air, water, surfaces, soil, plants, buildings, people, or animals to become contaminated.
My business project.... i was making my own business and i chose to create an hotel and resort :) this is aimed to get investor to invest in our company.
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International FDP on Fundamentals of Research in Social Sciences
at Integral University, Lucknow, 06.06.2024
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Safalta Digital marketing institute in Noida, provide complete applications that encompass a huge range of virtual advertising and marketing additives, which includes search engine optimization, virtual communication advertising, pay-per-click on marketing, content material advertising, internet analytics, and greater. These university courses are designed for students who possess a comprehensive understanding of virtual marketing strategies and attributes.Safalta Digital Marketing Institute in Noida is a first choice for young individuals or students who are looking to start their careers in the field of digital advertising. The institute gives specialized courses designed and certification.
for beginners, providing thorough training in areas such as SEO, digital communication marketing, and PPC training in Noida. After finishing the program, students receive the certifications recognised by top different universitie, setting a strong foundation for a successful career in digital marketing.
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http://sandymillin.wordpress.com/iateflwebinar2024
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Knowledge and skills frameworks, generally called competency frameworks, for ELT teachers, trainers and managers have existed for a few years now. However, until I created one for my MA dissertation, there wasn’t one drawing together what we need to know and do to be able to effectively produce language learning materials.
This webinar will introduce you to my framework, highlighting the key competencies I identified from my research. It will also show how anybody involved in language teaching (any language, not just English!), teacher training, managing schools or developing language learning materials can benefit from using the framework.
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Macroeconomics- Movie Location
This will be used as part of your Personal Professional Portfolio once graded.
Objective:
Prepare a presentation or a paper using research, basic comparative analysis, data organization and application of economic information. You will make an informed assessment of an economic climate outside of the United States to accomplish an entertainment industry objective.
2. Preview
• Nuclear Waste
• How It Works
• Types and Categories of Nuclear Waste
• Potentials to Harm the Environment
• Procedures to Remove the Wastes
• Effectiveness of the Procedures
3. Nuclear Waste
• Nuclear waste is the radioactive waste produced by nuclear reactors, or left over
from research projects, medical uses, and the manufacture of nuclear weapons It
categorized as;
High-level Waste (HLW),
Intermediate Waste (ILW)
Low-level Waste (LLW)
• The nuclear wastes are composed of a combination of uranium, plutonium, and
other radioactive elements such as neptunium, americium, curium, etc.
4. How Nuclear fuel is used
• After the mining, the uranium ores are ground in the water to produce
slurry fine particles under water. Then the slurry is leached with sulfuric
acid to dissolve the uranium oxide concentrate U3O8 and then take them.
• Uranium oxide concentrate U3O8 turned into uranium hexafluoride (UF6)
by “enrichment process” and keeps them in the nuclear power reactors.
• UF6 will be transported into the fuel fabrication plant and converted into
UO2 powder and pressed into small pellets. Then inserted into thin tube to
form rods about 7 m long.
5. How Nuclear fuel is Used
• The rods are taken into a room where they stored into water-filled vaults
to maintain the rods’ temperature from over heating .
• Moved to air tight sealed containers and transport to dry containers.
• Processing
– Heating water to make steam (nuclear fission occurred), burn turbines, generator
on, and produced the power for electricity, etc.
• Used fuel would be stored underground and recycled it.
Control rod
Uranium rod
6.
7. Categories of Nuclear waste
• There are 3 main categories of radioactive waste :
High Level Waste (HLW) by 3% Volume, it contains 95% of
radiation.
Produced by the nuclear power plant (fuel fission from the
Nuclear weapon,
Uranium milling residues, and waste with greater than specified quantities
of elements heavier than uranium.
8. Intermediate Level Waste (ILW) by 7% Volume, it contains 4% of
radiation.
Ion exchange resins and filter materials used to clean water at a nuclear
power plant,
Low Level Waste (LLW) by 90% of Volume, it contains 1% of
radiation.
Medical Equipment (containers, cloth, paper, fluids, and equipment which
came in contact with radioactive materials)
Contaminated hand tools, components, piping, and other equipment from
nuclear power plants and other industries, etc.
9. Potential to harm the environment
• It radioactive waste is potentially dangerous because they emit ionizing
radiation, which can damage to human health such as; produce mutations
and birth defects, and cause cancer. The degree of risk depends upon the
level, and type, of radioactivity, with some materials being very hazardous
in raw form, and others posing little threat in most circumstances.
10. Procedures to remove Radioactive wastes
High Level Waste (HWL)
• Deep Geological Disposal
The principle of geological disposal is to isolate the waste deep inside a suitable
host formation, e.g. granite, salt or clay. The waste is placed in an underground
facility or disposal facility, designed to ensure that a system of natural and multiple
artificial barriers work together to prevent radioactivity from escaping. Placed in
dry barrels with air conditioner or in the barrel put water. It because water used to
cool down the fuel and it works to protect workers from the radiations. It will lost
its radiation in about 10 years by 90 %. It also can be recycled.
11. • Notre Dame Thorium Borate-1 (NTDB-1)
It is a new invention of 2012 by Notre Dame University. It is a crystalline compound
that can be tailored to safely absorb radioactive ions from nuclear waste streams.
It traps both Tc-99 (technetium, half-life 220,000 years) and I-129 (Iodine-129) and
half-life 15.7 million years, Their unique electronic properties lead to applications
in a wide variety of areas ranging from magnetism to catalysis. By testing this
substance into Tc-99, it removes 70%-90% of the radiation.
12. Intermediate Level Waste (ILW) and Low Level Waste (LLW)
• Disposal
The disposal between intermediate and low level waste are pretty similar.
Only the Intermediate level disposal is going to be close to the
surface, about 18 m down placed in a concrete and sealed it in steel
drums. The low level disposal could be just open on the surface. Also for
the low disposal could be a normal waste after 15 years.
13. • Bacteria Geobacter sulfurreducens
• Be able to clean up toxins, oil spills, and nuclear waste by eating it. This
procedure is still not sure. These bacteria have structure called the pilus, a
hair like appendage that acts like wire. Through this, it transfers electrons
via the pilus to the metals that they feed off of. These bacteria lives near
nuclear waste of uranium.
14. • Sulfide sponge:
– Strontium-90 is a particularly harmful component of nuclear waste with a half-life
of about 30 years. But finding Sr2+ ions is like searching for a needle in a haystack:
non-radioactive ions of sodium (Na+) and calcium (Ca2+) are a million times more
numerous, positively charged and around the same size. Sulfide sponge used a
layered metal sulfide called KMS-1 containing potassium, manganese and tin. This
material is a simple ion-exchanger, capable of swapping potassium ions for heavier
ones - and then holding onto them.
• They tested KMS-1, which looks like a brown powder, by packing it into porous
bags similar to tea bags. When they dipped the bag into a sodium-rich solution
of strontium - resembling the conditions in nuclear waste - it removed 99.8 per
cent of the strontium.
15. Effectiveness of the procedures
• Generally, disposal is the regular procedure that is used by the nuclear
powered countries these days. However, by finding new fastest and
effective ways to remove the radiations like the sulfide sponge or Notre
Dame Thorium Borate-1 would also helping the radioactive waste
removal.
16. Review
• Nuclear Waste is a really dangerous waste because it contains high
radiation that can damage human health. It is categorized as
high, intermediate, and lo level of waste.
• High level waste produced by the nuclear weapon, and the nuclear power
plant. Intermediate level wastes produced by water filter that is used to
keep the rods cold.
• The procedures such as deep disposal for high, and regular disposal for
low and intermediate. New procedures such as Sulfide sponge and NDTB-1
and Bacteria Geobacter sulfurreducens.