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In this Nov. 12, 2014, file photo, a Tokyo Electric Power Co.( TEPCO) official wearing a radioactive protective gear stands in front of Advanced Liquid Processing Systems during a press tour at the Fukushima Dai-ichi nuclear power plant in Okuma, Fukushima Prefecture , northeastern Japan. Japan’s economy and industry ministry therefore proposed gradually liberating or allowing to evaporate massive amounts of treated but still radioactive water at the tsunami-wrecked Fukushima nuclear plant. The suggestion stirred Monday, Dec. 23, 2019, to a figure of experts is the first time the ministry has constricted down the options available to simply liberating the liquid.( AP Photo/ Shizuo Kambayashi, File)
Japan’s economy and industry ministry has put forward Monday the gradual liberate or evaporation of a huge number of treated but still radioactive sea being stored under the tsunami-wrecked Fukushima nuclear plant.
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The proposal to a group of experts is the first time the ministry has constricted down the various options available to those selections. It is meant to solve a growing difficulty for the plant’s operator as storage space for the water runs out, despite panics of a backlash from the public. The draft suggestion will be discussed further.
Nearly nine years after the 2011 meltdowns of three reactor cores at the Fukushima Dai-ichi Nuclear Plant, radioactive sea continues to accumulate as water used to keep the cores cool divulges from the damaged reactors and is stored under tanks so it won’t escape into the ocean or elsewhere.
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For times, a government panel has been discussing ways to handle the crisis and to reassure fishermen and residents who fear possible health effects from releasing the radioactive water as well as harm to the region’s image and fishing industry.
Fukushima fishermen and the National Federation of Fisheries Co-operative Associations have strongly opposed past suggestions by government officials that the ocean be liberated to the sea, warning of an” immeasurable impact on the future of the Japanese fishing industry ,” with local fishermen still unable to resume full operations after the nuclear plant accident.
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The water has been treated, and the plant operator, Tokyo Electric Power Co ., says all 62 radioactive ingredients it contains can be removed to degrees not harmful to humen except for tritium. “They dont have” established method to fully separate tritium from sea, but scientists say it is not a problem in small amounts. Most of the liquid stored under the flower still contains other radioactive factors including cancer-causing cesium and strontium and needs further care.
In Monday’s proposal, government ministries recommended a controlled release of the ocean into the Pacific, permitting the water to evaporate, or a combination of the two methods. The ministry said the controlled liberate to the sea is the best option because it would” stably dilute and scatter” the liquid from the plant and can be properly monitored.
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A release is expected to take times and radiation degrees will be kept well below the legal limit, the proposal said.
The ministry noted that tritium has are periodically liberated from nuclear plants around the world, including Fukushima before industrial accidents. Evaporation has been a tested and proven method next following the 1979 core meltdown at Three Mile Island nuclear plant in the United Government, where it took two years to get rid of 8,700 tons of tritium-contaminated water.
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TEPCO says it is currently storing more than 1 million tons of radioactive sea and only has space to hold up to 1.37 million tons, or until the summer of 2022, conjure speculation that the ocean may be released after next summer’s Tokyo Olympics. TEPCO and experts say the cisterns get in the way of ongoing decommissioning run and that room needs to be freed up to store removed debris and other radioactive substances. The cisterns likewise could spill in a major earthquake, tsunami or inundate.
Experts, including those at the International Atomic Energy Agency who have inspected the Fukushima plant, have repeatedly supported the controlled liberate of the water into the sea as the only realistic option.
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On Monday, some experts on the members of the committee claimed responsibility for more attention to be given to the impact on its community, which already has insured its image harmed by accidental leaks and the potential release of liquid.
” A freeing to the sea is technologically a realistic option, but its social impact would be huge ,” said Naoya Sekiya, a University of Tokyo sociologist and an expert on disasters and social impact.
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Takami Morita, a radiology expert at the Fisheries Research Agency, said simulations of a sea release largely represented TEPCO’s point of view.” It is important we look at it from the other side ,” Morita said, urge officials to provide more data about a freeing and its possible impact.
An earlier government report supplied five possible ways to get rid of the water, including releasing it into the sea and evaporation. The three others included underground burial and its injection into deep geological layers.
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The ministry ruled out long-term storage of the radioactive water in large industrial tanks outside the flower, quoting possible risks of leakage from corrosion, a tsunami or other calamities and accidents, as well as the technological challenge of transporting the water elsewhere.
Fukushima nuclear plant out of space for radioactive water
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Government planneds release of Fukushima water to sea or breath( 2019, December 23)
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