this ppt is preapared for my college miniproject. but i dound this ppt gives some information about chernobyul disaster so it will be useful for understanding

1. PERI INSTITUTE OF TECHNOLOGY
CHEMISTRY PROJECT PRESENTATION

2. CHERNOBYL ACCIDENT 1988
(CHERNOBYL NUCLEAR
DISASTER)
THE DISASTERWHICH IS 400TIMES DESTRUCTIVETHANTHE FAMOUS HIROSHIMA
NAGASAKI NUCLEAR DISASTER

3. CHERNOBYL
DISASTER, (NUCLEAR
ACCIDENT,SOVIET
UNION(1986)
Chernobyl disaster, accident in 1986 at
Chernobyl nuclear powerplant station
in the Soviet Union, the worst disaster
in history of nuclear power
generation.
This Photo
by Unknown
author is
licensed
under CC BY-
SA.

4. The disaster took place when the reactor suffered a catastrophic power increase. Explosions took place.
Radioactive materials were dispersed into the environment and graphite moderator was burned.The accident
occurred during an experimental plan to test emergency core cooling additional capacities. Some of the causes of
the accident were identified as design deficiencies like the positive void reactivity coefficient or the fact that the
reactor had not any hard containment vessel.
RELEVANT NOTES ON CHERNOBYL DISASTER:
[YEAR]
Action
[YEAR]
Action
[YEAR]
Action
[YEAR]
Famous Event
This Photo by Unknown author is licensed under CC BY-SA-
NC.
This Photo by Unknown author is licensed under CC
BY-NC-ND.
This Photo by Unknown author is licensed under CC
BY.

5. NAME: ANATOLY DYATLOV
He was the deputy chief engineer of the CHERNOBYL NUCLEAR POWER
PLANT. On April 26 1988, Dyatlov supervised a test at Reactor 4 of the
nuclear plant, which resulted in worst nuclear plant accident in history.
Together with Nikolai Fomin (chief engineer in Chernobyl power plant) and
Victor Bryukhanov (Director of Chernobyl nuclear power plant) , Dyatlov
was tried for failure to follow safety regulations. In 1987 all the three were
sentenced to ten years in prison for guilty of gross violation of safety
regulations leading to an explosion which the history has never seen.
This Photo by Unknown authoris licensed under CC BY-SA.

6. EXPLODED RMBK
REACTOR

7. ”
“
What caused Chernobyl disaster?
Evidence On April 26, 1986, the Number Four RBMK reactor at the nuclear power plant at Chernobyl, Ukraine, went
out of control during a test at low-power, leading to an explosion and fire that demolished the reactor building and
released large amounts of radiation into the atmosphere. Safety measures were ignored, the uranium fuel in the
reactor overheated and melted through the protective barriers. RBMK reactors do not have what is known as a
containment structure, a concrete and steel dome over the reactor itself designed to keep radiation inside the plant in
the event of such an accident. Consequently, radioactive elements including plutonium, iodine, strontium and caesium
were scattered over a wide area. In addition, the graphite blocks used as a moderating material in the RBMK caught
fire at high temperature as air entered the reactor core, which contributed to emission of radioactive materials into
the environment.

8. PREVENTION OF CHERNOBYL DISASTER
The Chernobyl Nuclear Power Plant sarcophagus or
Shelter Structure is a massive steel and concrete
structure covering the nuclear reactor number 4
building of the Chernobyl Nuclear Power Plant.
Currently the sarcophagus resides inside the New
Safe Confinement structure.
a Shelter was built to contain the damaged
reactor, reduce the radiation levels on-site, and
prevent further release of radioactive material.
Known as sarcophagus
This Photo by Unknown author is licensed under CC BY-ND. This Photo by Unknown author is licensed under CC BY-SA.

9. CONCLUSION
There have been more than 100 serious nuclear accidents and incidents from the use of nuclear power. Especially
there are 2 worst nuclear disasters, they are
1.Chernobyl nuclear disaster
2.Fukishima nuclear disaster
These types of nuclear disasters can be prevented by
Implementation of radiation protection and contamination control procedures. Use of proper protective
equipment.Adherence to approved operating and maintenance procedures. Implementation of radiation
protection training and qualification programs and conduct of refresher courses to impart ALARA concept and
awareness.
the only option against nuclear hazards is to check and prevent radioactive pollution. Following are the ways to
prevent or control these hazards: a. Leakages from nuclear reactors, careless handling, transport and use of
radioactive fuels, fission products and radioactive isotopes have to be totally stopped.

10. LESSONSTO BE LEARNT FROM NUCLEAR DISASTER
* Nuclear power is a highly complex, expensive and
dangerous way to boil water
* Nuclear power is a highly complex, expensive and
dangerous way to boil water
*The nuclear industry and its experts cannot plan for
every contingency or prevent every disaster.
* Governments do not effectively regulate the nuclear
industry to assure the safety of the public.
* Nuclear power plants can catastrophically fail, causing
vast human and environmental damage.The
corporations that run the power plants, however, are
protected from catastrophic economic failure by
government limits on liability, which shift the economic
burden to the public
* Radiation releases from nuclear accidents cannot
be contained in space and will not stop at national
borders.
* Radiation releases from nuclear accidents cannot
be contained in time and will adversely affect
countless future generations.
* Nuclear energy, as well as nuclear weapons, and
human beings cannot co-exist without the risk of
future catastrophes.
The nuclear power plant accident
at Chernobyl was repeated, albeit
with a different set of
circumstances, at Fukushima. Have
our societies yet learned any
lessons from Chernobyl and
Fukushima that will prevent the
people of the future from
experiencing such devastation?

11. PERI INSTITUTE OFTECHNOLOGY
PROJECT PRESENTATION BY:
NOORUL FAMITHA.A
VIJAYASRI .Y
KALAIMATHI .P
ANEES FATHIMA.M