10 most high-profile nuclear disasters

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2017-07-31 16:00:13

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10 most high-profile nuclear disasters Source:

Once upon a time people believed that nuclear power will one day solve all energy problems of mankind. From nuclear power plants to Airliners that need to be recharged once in 22 years, since the Second world war, the great nuclear discoveries side by side walked with renewable energy. In certain conditions, the energy of the atom can be quite safe and give warmth to millions of people a year. But sometimes this heat can be unbearable.

Throughout the history of mankind many lives were gone because of the unpleasant events associated with nuclear energy.

the

Texas accident

April 16, 1947 there was a terrible explosion in the Harbor in United States history. French freighter Grandcamp was carrying a cargo of ammonium nitrate, which is commonly used as fertilizer and for making explosives in a nuclear weapon.

A Lighted cigarette thrown by one of the workers caused a fire on the loading dock. It quickly spread to one of the cargo holds and Grandcamp ignited ammonium nitrate.

The captain of the ship ordered to batten down the hatches to keep the fire, but the temperature rise only improved conditions for an explosion of volatile chemical. High Flyer, a ship nearby, carrying with it the sulfur, was also raised and exploded through the day due to fires caused by the explosion of the Grandcamp.

Toxic gas quickly filled the air above the city. Unfortunately, coincidentally, at the same time, workers went on strike telephone operator, so the emergency workers could not able to take on the affected by toxins in the air. More than 500 people have died as a result of this incident, including 28 firefighters involved in extinguishing the fire in the dock.

As a result of this event it had adopted new security measures to ensure safe carriage of ammonium nitrate. At the docks, there was a Central response system for fast response to emergency situations, and the shipping company is obliged to use special sealed containers and store chemicals away from other hazardous materials.

the

rocket Explosion "Titan II"

On 18 September 1980 near Damascus, Arkansas, had a rocket explosion. It happened because a member of the repair team dropped a 4-pound rocket nozzle from the platform and struck the bottom of the fuel tank of the rocket. David Powell breached the technical order USAF to use a torque wrench instead of the previously used ratchet for repair. As soon as the pilots saw the leak of the fuel vapor in the bunker, all members of the crew were evacuated to the surface.

Dave Livingston and Jeffrey Kennedy, two expert repairman, was called to the silo to check the damage of the rocket. They went inside and found that the oxidizer tank is rapidly losing pressure. They returned to the surface and opened the bunker to let in the gas. Few minutes later the bunker exploded and sent the warhead into the air.

One day search for a 12-kiloton bomb was found a few hundred meters from the explosion and picked up by the U.S. military. The missile itself was the largest nuclear weapon in the U.S. Arsenal and could cause an explosion 600 times more than in Hiroshima. Livingston was wounded by the explosion, and he died soon after the arrival at the hospital. Also injured 21 people.

David Powell later demoted for breaking the rules. Until that day, he did not consider himself guilty for what happened. Later, the government announced that the culprit was human error.

the

Palomaki incident with a hydrogen bomb

January 17, 1966, twelve B-52 bombers carrying hydrogen bombs in the country's allies in Europe as part of military exercise called Operation Chrome Dome. The goal was to prepare for the first clash with the Soviet Union during the cold war.

One of the bombers collided with a tanker KC-135 that was trying to refuel in the air over the southern coast of Spain. The accident led to the fact that both planes were covered with fuel, and they flashed and exploded. Although a few people were able to safely parachutiste on the ground, the explosion killed seven. The wreckage of the aircraft fell on Palomares, coastal farming village in the South of Spain.

The Local population was not aware of what debris will spread radioactive plutonium all over the area, contaminating the ground and water supply for the whole city. Three bombs immediately restored. The fourth couldn't find for three months, until 7 April 1966.

For the First time in history the us military has shown the public a nuclear weapon. Inspection of the population revealed some traces of radiation and the rates of cancer were similar to those observed in other cities in this area. Since the discovery of contamination in the soil in 2006, the U.S. government finally agreed to help Spain in the recovery process. The issue is not resolved immediately.

the

Kyshtym nuclear accident

Kyshtym incident ranks third in the list of the largest nuclear disasters. It occurred in the town of Mayak in the Ural mountains in the Soviet Union, 29 September 1957, at the height of the cold war.

The plant in Mayak was producing six materials needed to develop weapons-grade plutonium. At that time, the Soviet Union had not informed its workers about the serious possibility of radiation poisoning radioactive materials.

At that time, the factory used the work of local inmates for waste disposal, throwing them into the Techa river. Next the residents did not know about the infection until one of the local men got severe burns and, consequently, the amputation of the feet.

The Level of thyroid cancer in the region is three times higher than in comparable areas. To this day, the people there are suffering from birth defects, radiation burns, and seven rare cancers, which are usually not observed among the population of the country.

The Soviet Union did not warn people for many years after initial contamination, and the Russian regulatory authorities have serviced the plant and did not protect the civilian population. Technicians did not notice a structural failure in one of the cooling systems that caused a chain reaction.

On 29 September 1957 the cooling problem has resulted in a powerful explosion in one of the tanks with radioactive waste. The explosion spread radioactive material over the area where they lived about 300 000 people.

The Soviet leadership was only 10,000 people from the area. The rest of the left "view". Declassified Russian documents later introduced this as an experiment of Muslyumovo.

Many people living in this area are still fighting for the right to resettlement. Because of the political ignorance and human error, the lighthouse and the surrounding area is the most polluted place on Earth.

the

Tokaimura nuclear accident

The Japanese company for reprocessing of nuclear fuel has created a processing plant near Tokaimura for the production of enriched uranium for the plant's nuclear reactor. For the preparation of the fuel and filling the tank was assigned three technicians.

Fuel of this type is not produced at the plant for three years, and technology had no qualifications for the job intended. This lack of knowledge and experience led to one of the worst accidents in the history of industrial Japan.

Technology unknowingly overfilled the tank for precipitation, which had a maximum capacity of 2.4 kg. When the mass has reached a critical threshold, the tank was filled with 16 kilograms of uranium.

It Began a negative reaction, which produced a short blue flash. All three appliances were able to get a lethal dose of radiation. Also, the tank started spewing radioactive substance yttrium-94 and barium-140 in the air over the plant.

Two responsible technicians died from radiation burns and exposure to gamma radiation. The rest of the team managed to empty the tank and replace cooling materials boric acid, which is returned to the uranium subcritical level. Civilian evacuated within two days, and Japanese authorities have worked hard to clean areas.

the

Accident in Windscale

The worst nuclear accident in Europe occurred on October 10, 1957 in Cumbria, United Kingdom. The object used in the Windscale nuclear reactor, which was controlled by the graphite.

Built in 1951, the station was intended to produce nuclear weapons for the British government. On the morning of 8 October 1957, the engineers at the station noticed that one of the systems cooled down and did not correspond to the working temperature.

They applied the Wigner cycle, which re-used the captured energy from the reactor for cooling and heating of the reactor. The test was successful. But two days later, the engineers found that the temperature in the reactor was again incorrect, and decided to heat the reactor. They didn't know in the first reactor fire. Using a system that pumped oxygen into the reactor, they just fanned the fire.

The Fire raged for three days. Conventional methods such as water, could not be used because water is oxidized radioactive materials and can result in further damage to the structure.

Finally, the engineers realized that the fire will lose oxygen supply, if you close the hatch in the top of the chimney of the first reactor. Did so, and the fire was successfully stopped after 24 hours. No casualties.

However, it later emerged that some pollution has reached Britain and became the reason of increase in the level of thyroid cancer. Since then, the reactor was sealed and closed, but the British government decided that the station cannot be completely shut down until 2060.

the

the Case of the B-52 in Goldsboro

24 January 1961 a B-52 bomber with two atomic bombs Mk 39 for 4 megatons each had to refuel over the base air force. Seymour Johnson. The B-52 was found with an air tanker over Goldsboro, North Carolina to the northeast from the base.

The crew of the tanker noticed, WH...

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