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 1957 chelyabinsk

Date: 29 September 1957


Location: Mayak Scientific-Production Association, Kyshtym, Chelyabinsk, Russia, USSR


Type of event: chemical explosion in stored nuclear wastes


Description: The accident occurred at a facility involved in processing and storage of nuclear wastes. Following removal of plutonium, liquid high-level nitrate-containing wastes were stored in underground stainless steel tanks in concrete trenches. The tanks were located about 2 km from the plant, each with a volume of about 300 cubic meters. The tanks included heat exchangers to remove heat buildup in the tanks. The heat exchanger on one tank was shut down in 1956 due to a fault, and it was concluded it was safe to leave the tank uncooled. However, water evaporation in the tank allowed a buildup of nitrates and acetates on the surface of the tank's contents, in contact with air, before a spark from monitoring equipment detonated the contents on 29 Sept. 1957. This chemical explosion had an energy release of 5-10 tons of TNT, releasing about 70- 80 tons of wastes with a total activity of about 20 megacuries.

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updated Thu. November 28, 2019

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In 1957, during Moscow's scramble to advance the nuclear arms race, a tank of ... Chelyabinsk regional public safety minister responded to the ...
Puzzlingly, on Oct. 9, regional authorities in the Chelyabinsk region, ... The Mayak spill in 1957 is often compared in its severity with the two ...

Evgeny Savchenko, the Chelyabinsk region's minister of public security, ... in 1957 was the site of one of the worst nuclear accidents in history.
Nel settembre 1957 il sistema di raffreddamento in una delle ... una lunga “piuma” radioattiva_ sugli oblast di Chelyabinsk, Sverdlovsk e ...
... were located in Chelyabinsk region, the site of the Mayak nuclear facility. ... One of its storage facilities exploded in 1957 — a fact that went ...
Evgeny Savchenko, the top health and safety official in Chelyabinsk ... In 1957 Mayak was the site of one of the worst nuclear disasters in ...

When started in 1957 as a branch of the Soviet Union government, the ... This was followed by acquiring both Chelyabinsk Airlines and Enkor.
... it's easy to forget that a radioactive explosion back in 1957 near an ... Kutepova, who has long battled Chelyabinsk officialdom on behalf of ...
ON September 29, 1957, a massive explosion took place at the Mayak ... was Chelyabinsk-65 — near Kyshtym in Chelyabinsk Oblast on the east side of the Ural ...
In 1957 a mistake in the reprocessing plant led to an explosion that ... Also missing from maps at the time was the nearby town of Chelyabinsk, ...
Formerly known under the code-name Chelyabinsk-65, the secret town ... In 1957, an improperly stored underground tank of high-level liquid ...
The Tomino copper ore repository was opened back in 1957. And seeing as the environmental situation in Chelyabinsk was already poor, ...
In 1957, the Kyshtym disaster happened near Russia's closed city of Chelyabinsk-65, 120 kilometers from the border with Kazakhstan.
Until the fall of communism, Chelyabinsk was closed to foreigners because of ... Then in 1957 the river was unaccountably declared safe again.
We've studied the first radiological effects following the 1957 nuclear explosion in Chelyabinsk. Our scientists have studied the consequences ...
... Mayak nuclear facility in the Chelyabinsk region detected "extremely ... waste exploded in 1957, prompting the evacuation of nearly 13,000 ...
... the Mayak nuclear facility in the Chelyabinsk region. The site was used to make fuel for nuclear weapons and nuclear reactors, and in 1957, ...

The Tomino copper ore repository was opened back in 1957. And seeing as the environmental situation in Chelyabinsk was already poor, ...
In 1957, 97 percent of men in America ages 25 to 54 were either working or looking for work. Today, only 89 percent are. Italy is the only OECD ...
Until the fall of communism, Chelyabinsk was closed to foreigners because of ... Then in 1957 the river was unaccountably declared safe again.
Ozersk, codenamed City 40, was the birthplace of the Soviet nuclear weapons programme. Now it is one of the most contaminated places on ...
That is the spin the Art-Grani metal working company in Zlatoust in the Chelyabinsk region in south central Russia has put on a new medal that the company is now promoting.
She has been reporting from Russia for almost 40 years and visiting Chelyabinsk, an industrial city in the Urals for the last 23.
1957 Twenty MCi (740 peta-becquerels) of radioactive material is released in an explosion at the Soviet Mayak nuclear plant at Chelyabinsk. 1957 The New York Giants played their last game at the Polo Grounds, losing to the Pittsburgh Pirates 9-1.
"And remember the meteor that exploded over Chelyabinsk, Russia, in 2013? An asteroid that size could ... alludes to the U.S.
In 1747, industrialist Yakov Korobkov bought land in the settlement of Kasli in the Chelyabinsk Region (about 1,100 miles east of Moscow), where he built several factories.
Teddy Rooney appeared with his father as the son of his dad's legendary character (now a grown-up) in Andy Hardy Comes Home (1958) and on a 1960 installment of General Electric Theater, and, earlier, he acted alongside his mom on a 1957 episode of ...
In this photo taken on Thursday, April 7, 2016, an old man fishes in a lake that connects to the nearby Techa River, near the village of Muslyumovo, Chelyabinsk region, Russia, which is polluted with radioactive waste from Mayak nuclear plant. ... In ...
AP photo An old man fishes earlier this month in a lake that connects to the nearby Techa River, near the village of Muslyumovo, Chelyabinsk region, Russia, which is polluted with radioactive waste from Mayak nuclear plant. ... In September 1957 ...
In this photo taken on Thursday, April 7, 2016, an old man fishes in a lake that connects to the nearby Techa River, near the village of Muslyumovo, Chelyabinsk region, Russia, which is polluted with radioactive waste from Mayak nuclear plant. ..... In ...
In this photo taken on Friday April 8, 2016, a sign warns people not to enter the town of Ozersk, Chelyabinsk region, Russia, which houses the Mayak nuclear facility.
Siamo stati i primi a studiare le conseguenze radiologiche dell'incidente nucleare avvenuto a Chelyabinsk nel 1957. Nel 1986 praticamente tutti i membri della mia squadra di lavoro sono stati inviati a Chernobyl. Prima per brevi periodi e poi in pianta ...
We've studied the first radiological effects following the 1957 nuclear explosion in Chelyabinsk. Our scientists have studied the consequences on the environment.
Local authorities found the miniature corpse in May 1996 near the town of Kyshtym in the Chelyabinsk region of Russia. The body had been in the possession of Tamara Vasilievna Prosvirina, an elderly peasant woman from the village of ... Skeptics noted ...
Until Chernobyl, the worst nuclear accident on record was in September 1957 at a dump site near the town of Ozyorsk (Chelyabinsk) in Russia's Southern Urals region. Improperly stored reactor waste overheated, causing a huge chemical explosion that left ...
A special focus of the work of Planet of Hopes was to defend the rights of victims of radiation. Ozersk is located in the southern Urals near the site of the Mayak nuclear power plant that experienced a devastating accident on 29 September 1957 ...
Il 29 settembre 1957 esplose un serbatoio di stoccaggio di rifiuti radioattivi liberando una nube tossica che si sparse per 2300 kmq contaminando una superficie pari alla Sicilia ed immettendo nell'atmosfera il doppio del materiale contaminato ...
"Their fueling begins 10 days before the launch and, therefore, they are unfit for destroying meteorites similar to the Chelyabinsk meteorite in diameter, which are detected several hours before coming close to the Earth. For this purpose ...
"Their fueling begins 10 days before the launch and, therefore, they are unfit for destroying meteorites similar to the Chelyabinsk meteorite in diameter, which are detected several hours before coming close to the Earth. For this purpose ...


 

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