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Sellafield MOX plant to close - UK [03Aug11] - 0 views

  • The manufacture of mixed oxide (MOX) nuclear fuel at Sellafield is to stop "at the earliest practical opportunity" to reduce the financial risks to British taxpayers from events in Japan.  
  • The closure comes as a result of the Fukushima accident, which dramatically increased uncertainty for the ten Japanese utilities that had placed contracts for supplies of MOX fuel. This is made by combining uranium with plutonium recovered by reprocessing used nuclear fuel. The Nuclear Decommissioning Authority (NDA), which owns all the UK state's nuclear assets, said it reviewed the risk profile for operation of Sellafield MOX Plant (SMP) and "concluded that in order to ensure that the UK taxpayer does not carry a future financial burden from SMP that the only reasonable course of action is to close SMP at the earliest practical opportunity."
  • Separately Areva last week announced the cancellation of orders for uranium and nuclear fuel amounting to €191 million ($273 million) as a result of the shutdown of reactors in Japan and Germany.The NDA's move to close SMP will be a grave disappointment for the plant's 600 workers, who had celebrated success in raising performance to commercially acceptable levels. Despite being designed to produce 120 tonnes of fuel per year, it never operated properly and was downrated to just 40 tonnes per year. In its nine years of operation to 2010 it produced only 15 tonnes of fuel.
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  • However, in 2010 the NDA and ten Japanese utilities agreed on a plan to refurbish the SMP "on the earliest timescale" using technology from France's Areva. A new rod manufacturing line was being installed which, as well as improving overall performance, was meant to ultimately replace the existing one. The NDA's Sellafield site – including the SMP - is managed by Nuclear Management Partners, a consortium of URS of the USA, AMEC of the UK and Areva of France. Taking the back-end forward
  • The two major elements in the UK's strategy for the back-end of the nuclear fuel cycle were SMP and the Thermal Oxide Reprocessing Plant (Thorp), at which used nuclear fuel is reprocessed to separate uranium and plutonium from wastes that go on to be vitrified ready for permanent disposal. A document released in March 2010 highlighted that Thorp would require refurbishment or replacement to handle the complete inventory of used nuclear fuel it was built to process - all that coming from the fleet of Advanced Gas-cooled Reactors (AGR) as well as international contracts. Some 6600 tonnes of AGR fuel remains outstanding, with options for storing it unclear until a permanent repository is available in about 2030.
  • Simultaneously, the UK is considering the future of some 100 tonnes of civil plutonium, which is currently classified as a 'zero value asset'. A public consultation on this ran from February to May. In late March the former science advisor to Tony Blair, Sir David King, presented a range of options which in essence showed it makes sense to produce MOX fuel from the plutonium. The question for the UK is whether it wants to offset the cost of this with extra savings and revenues from the potentially expensive return to the full nuclear fuel cycle that would come with a refurbishment of Thorp.
  • A cost-benefit analysis of a new MOX plant has been commissioned by the Department of Energy and Climate Change and a decision based on that is expected before the end of this year.
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'Untested' nuclear reactors may be used to burn up plutonium waste - Science - News - T... - 0 views

  • The plan envisages the construction of twin nuclear "fast reactors" at Sellafield that can dispose of the plutonium directly as fuel to generate electricity while ridding the country of a nuclear-waste headache that has dogged governments for half a century.
  • Britain's Nuclear Decommissioning Authority (NDA), which is in overall charge of Sellafield, requested the study last year in a remarkable U-turn in its stated policy of dealing with the 112 tonnes of civil plutonium that has accumulated as a result of the reprocessing of spent nuclear fuel.
  • The American company behind the proposal, GE Hitachi Nuclear Energy, still has a long way to go to convince experts that it can deliver reactors that can work as promised, as well as being delivered on time and to budget.
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  • The company emphasised in its submission that it is based on technology that has operated successfully for 30 years in the US in an experimental facility.
  • Britain's previous attempts to convert plutonium into Mox fuel which could then be burned in conventional reactors have proved disastrous, culminating in the premature closure last year of the £1.34bn Sellafield Mox Plant, which was a commercial and technical failure. Despite the debacle over Mox fuel, however, the NDA and officials with the Department for Energy and Climate Change have advised the Government to build a second Mox fuel plant, for an estimated cost of £3bn, as a way of dealing with the plutonium problem.
  • This plan would involve the French nuclear company Areva, which is also involved in building a similar Mox operation in the US to deal with its military plutonium stockpile. However, this troubled plan is 11 years behind schedule and between six and 10 times over budget.
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Obama's Gold - 94.6% Pure, Bomb Grade Plutonium [09Aug12] - 0 views

  •  President Obama asked Duke Power Corporation in the States to test run some plutonium fuel rods (MOX) in three of their reactors. The physicists said No; but, the head boss of Duke Power said “Yes.” Obama’s test run failed miserably.
  • As a result, the country very nearly lost the state of South Carolina. Those deadly  Plutonium cores were jerked out of those three big Duke Power reactors so fast it would make your head spin. Undaunted, unbowed and too ignorant to be afraid, the President of the United  States asked the President of a Japanese utility, the Tokyo Electric Power Company (TEPCO,) to run the “test” of the Plutonium fuel. Now, what are you going to do when the President of the US asks you for a favor? The test was slated immediately for the MOX fuel rods, of course. That is 21,000 lbs of 94.6% pure bomb grade Plutonium 239 (Pu 239) down blended and mixed with Uranium to form MOX 6% Pu 239 nuclear fuel rods.
  • Here’s what happened, perhaps as a result of President Obama’s political dabbling  in real life-or-death physics. This stuff gets real serious real fast.
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  • Five hundred eighteen days into the continuous reactor meltdowns and global dispersion of reactor cores; it’s a direct choice for “Gruesome Death” made by the pro-nukers. The deed is done and cannot be reversed. MOX stands for Mixed Oxide Fuel. The very poisonous bomb grade Pu 239 is taken from Hydrogen Bombs and mixed with Uranium to form pellets for fuel rods for nuclear  reactors. The fuel rods are about five (5) meters or 16 ft long and as big around as a person’s thumb. Pu 239 is very hard for bomb makers to work with and tends to go off by itself, which makes for a really bad day. The manufacturing of Hydrogen Bombs is a very nasty business in any country. Putting extra Pu 239 in nuclear reactors to boil water for steam is insane. LETHAL DOSES How many Lethal Doses of radiation from radioactive particles are in our air just from Fukushima Daiichi’s trashed reactors? As of Jun 29, 2012 Dr. Paolo Scampa, a noted physicist stated: “… [about Fukushima reactors exploding]  … occasioning a prodigious explosion of radioactivity and radiotoxicity which over time, is several times the amount needed to kill by internal contamination the whole human race.” - Dr Paolo Scampa, PhD., Nuclear Physicist.
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Areva, TVA Discuss Use of Mixed-Oxide Nuclear Fuel From Retired Weapons [21Feb11] - 1 views

  • French energy group Areva has entered tentative talks with the Tennessee Valley Authority that could pave the way for TVA’s nuclear plants to use fuel made from retired weapons. On Friday, the company announced it signed a letter of intent with TVA to initiate discussions on the use of fuel from the Department of Energy’s Mixed-Oxide Fuel Fabrication Facility. While it would not obligate TVA to use the fuel, the letter highlights the agency’s ongoing relationship with DOE in evaluating the fuel-from-weapons program
  • Scheduled to begin operating in 2016, the mixed-oxide facility at DOE’s Savannah River site in South Carolina will blend plutonium from disassembled weapons with depleted uranium oxide, according to the National Nuclear Security Administration. Using the fuel in commercial reactors would make the plutonium unfit for explosives and help meet a commitment made by the United States and Russia in 2000 to dispose of 68 metric tons of surplus plutonium. Shaw Areva MOX Services Llc. holds the contract to build and operate the South Carolina facility
  • According to NNSA, more than 30 commercial reactors currently use mixed-oxide fuel, including at plants in the United Kingdom, Germany, France, Belgium and Switzerland.
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  • “As the world leader in MOX fuel production, Areva has a long, successful history of producing reliable mixed-oxide fuel in Europe and has many satisfied customers around the globe. We look forward to partnering with TVA as it evaluates the potential use of MOX fuel in its nuclear plants,” Jacques Besnainou, CEO of Areva North America, said in a release
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    pushing the notorious MOX fuel
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Revealed: £2bn cost of failed Sellafield plant - 0 views

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    An internal report revealing the full extent of the failure of the SellafieldMixed-Oxide (MOX) plant concluded that the facility was "not fit for purpose" and its performance over a decade was "very poor". The report is embarrassing for the Government which is proposing to build a new MOX plant at Sellafield to deal with Britain's civil plutonium stockpile - the biggest in the world.
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Sellafield Mox nuclear fuel plant to close [03Aug11] - 0 views

  • The Mox nuclear fuel plant at Sellafield was closed on Wednesday , with the loss of around 600 jobs.The closure is a consequence of the Fukushima incident in Japan in March, which has closed down much of the nuclear industry there and led to a rethink of nuclear power around the world. But the government said the move had "no implications" for the UK's plans for new nuclear reactors.
  • Workers at the plant were told on Wednesday morning that there was "considerable scope" for them to be re-employed in other parts of the Sellafield complex.It will take several months for the plant to close fully.The west Cumbrian mixed-oxide fuel plant has cost the taxpayer £1.4bn since it was commissioned in the early 1990s.
  • The NDA denied there were any repercussions for the troubled Thorp reprocessing plant, although Thorp is also involved in generating Mox fuel, which is made from plutonium and uranium.Tony Fountain, chief executive of the NDA, told workers on Wednesday morning: "The reason for this [closure] is directly related to the tragic events in Japan following the tsunami and its ongoing impact on the power markets. As a consequence we no longer have a customer for this facility, or funding."
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  • The plant, operated by the government-owned Nuclear Decommissioning Authority (NDA), was set up to create mixed-oxide fuel for use in nuclear power plants, with its chief customers the Japanese nuclear industry, including the Fukushima complex.The plant was built in 1996 and became operational in 2001.
  • He admitted that the plant had suffered "many years of disappointing performance" that has been funded by the taxpayer. He said the key to attempts to save the plant in recent years had been the commitment of Japanese utilities to reusing nuclear fuel, and their support for the UK as a "centre of excellence". But with the crisis in the Japanese nuclear industry, that route is no longer viable.
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Plutonium brings no real chance of prosperity [05Dec11] - 0 views

  • The Dec. 2 morning edition of the Mainichi Shimbun ran an article reporting that in 2002, the then administrative vice minister of economy, trade and industry and the chairman and president of Tokyo Electric Power Co. (TEPCO) were nearing an agreement to withdraw from a nuclear fuel recycling project. Nuclear fuel recycling refers to a process of treating spent nuclear fuel from nuclear power stations with chemicals and extracting reusable uranium and plutonium from it. This project has so far been unsuccessful and there are no prospects that the project will work. It was only natural that the government regulator and the power supplier were negotiating a withdrawal from the project. The negotiations came to nothing after top executives of TEPCO were forced to resign over the utility's cover-up of a series of technical problems. Nevertheless, the Mainichi report indicates that a change in Japan's nuclear power policy is not a pipe dream.
  • Furthermore, the Mainichi evening edition of the same day (the morning edition the following day in some areas) reported that the United Kingdom is planning to dispose of some of its surplus plutonium, which it had accumulated as a result of nuclear fuel reprocessing, in an underground repository. This news is of greater significance. Plutonium is generated as a result of burning uranium in nuclear reactors. One gram of the substance has energy equal to that in 1 kiloliter of oil. It can be used as a material for both atomic bombs and fuel for nuclear reactors. The U.K. has steadily accumulated plutonium, but failed to develop fast-breeder nuclear reactors, which had been viewed as the core of the peaceful use of such a substance.
  • The U.K. then attempted to develop technology for the use of plutonium-uranium MOX fuel in thermal reactors at nuclear power stations, a project known in Japan as "pluthermal." However, the country has been unsuccessful in producing such fuel. The same is true with Japan. Areva SA, a nuclear technology company in France, is now manufacturing plutonium-uranium MOX fuel, but questions remain as to its quality. The U.K. ended up being the world's largest holder of surplus plutonium.
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  • The country has consequently decided to bury part of its plutonium in an underground repository that is scheduled to begin operations in 2040. Even if the U.K. says it will bury only "part" of its surplus plutonium, its amount is enough to produce hundreds of atomic bombs. The amount of surplus plutonium that needs to be buried could increase as there is no prospect that the U.K. will be successful in developing technology to use plutonium-uranium MOX fuel in thermal reactors. Moreover, the U.K. will abandon its project to reprocess spent nuclear fuel over the next decade. Behind the decision is the growing awareness that plutonium offers no positives, while also being a terrible nuisance. This is the essence of the story written by Haruyuki Aikawa, a Mainichi correspondent in London.
  • there are no prospects that Japan can build a disposal facility. However, for Japan to call for operations at the Monju prototype fast-breeder nuclear reactor in Fukui Prefecture and the nuclear fuel reprocessing plant in the Aomori Prefecture village of Rokkasho to be carried out as planned, would be like putting the cart before the horse as it appears the country is incapable of building a disposal facility.
  • Plutonium is directly related to security issues.
  • It is not enough for the government to talk only about the dream of "prosperity" built on dependence on nuclear power. Japan's ability to overcome the mess that follows such prosperity is now being tested
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Japan Nuclear Disaster Models From 2002 [26Aug11] - 0 views

  • A Japan Atomic Energy Institute paper from 2002 recently surfaced online. This paper was the technical estimations of what would happen if a nuclear reactor on the Pacific coast of Japan were to have a catastrophic accident. The models included radiation dispersal under a variety of scenarios and also illness and death rates under multiple scenarios. The plant for the experiment is  “1100MWe BWR5 with Mark-II type containment– One of the most common plant type in Japan“. Based on the location on the maps included in the paper the reactor used was either unit 6 at Fukushima Daiichi or one of units 1-4 at Fukushima Daini. The scenario is for one reactor failure, not 3 reactor failures plus spent fuel pools as was experienced at Fukushima Daiichi. Of the included reactor scenarios the one that closest resembles the Fukushima disaster is failure of cooling + overpressure damage. Below are two graphs, one in English, another in Japanese. They show the reactor damage scenarios, distance from the plant and mortality.
  • Some interpretations of the data in this report using the closest to Fukushima Daiichi model available. These do not mean specifically these things will happen, this is what the model shows under the scenario details they used: The model used does not differentiate between a unit 2 style containment failure and a unit 3 or Chernobyl style containment failure. A containment failure can vary greatly in how much of the nuclear fuel is released into the environment. The containment system in the model reactor is newer, technically improved and larger than the containment used in units 1-4 at Fukushima Daiichi. Unit 1 at Fukushima Daiichi has a slightly smaller containment than units 2-4. There have been concerns expressed that the smaller containment had less volume, making it more prone to failure. These slight differences in the reactors would result in changes to the amount of radiation released and would then change all these other outcomes.
  • 20 km away will cause max. 1 out of 500 deaths, an exclusion zone of 100 km will cause max. 1 out of 5000 deaths. The diagram may explain the 20 km exclusion zone. all curves go down beond 20 km away from the plant. Acute deaths = deaths for direct exposure to NPP wave radiaton + explosion deaths. The two sharply-dropping lines on the Japanese chart show acute death. Please make note that at 100 Km. distance values are not 0. Moreover X axis is logarithmic. Tokio-Fuku distance= 230 Km. Our estimate for 230 Km. death rate ~ 10*-4.Tokio Metropolis population 34,500,000 (2007)34500000/10000.  3450 deaths in Tokio only. Again, this is based on this model scenario, not exact situations currently going on. These mortality models include late onset cancers and also survivable cancers based on the details in the report.
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  • There’s the MOX factor to consider too, the addition of MOX fuel is not included in the model. MOX fuel in reactor 3 may have played a role in the speed of the meltdown and adds plutonium and related isotopes into the releases different than what would be seen with uranium fuel. The report in English, includes a series of PowerPoint slides at the end. *This report also talks at length about ways radiation is absorbed by people, they may not be included in the Japanese language report.
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    has charts
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Investigation Finds 7 Cases Of NISA & Power Companies Faked Nuclear Support [05Oct11] - 0 views

  • An independent investigation of power companies and the regulatory agency NISA found a total of 7 situations where nuclear support was faked by power company employees. All of the power companies named either have MOX plutonium mix fuel running in a reactor at the area in question or were attempting to do so. There were also influence attempts related to restarts. The companies were accused of influencing public opinion back in July, the investigation agreed that this was the case. NISA colluded with the power companies to have employees pose as average people in support of the nuclear power companies plans. One power company employee went so far as to pretend to be a farmer in a meeting. The employees did not disclose their relationship with the power companies and it is thought that these staged events heavily influenced the approval of the projects.
  • People familiar with the industry said this kind of thing has been going on for 20-30 years. Another known tactic is for employees to attend the meeting in large numbers in order to deny available seats to the public. This tactic being a method to push out any dissent and control the debate. TEPCO has admitted it used employee influence tactics at meetings on the desired restart of Kashiwazaki-Kariwa after it was shut down due to damage from a 2007 earthquake. Companies named in the investigation: Kyushu Electric Power Co.’s Genkai plant Shikoku Electric Power Co.’s Ikata plant Chubu Electric Power Co.’s Hamaoka plant Tohoku Electric Power Co.’s  Onagawa Hokkaido Electric Power Co.’s Tomari
  • Power companies in Japan running MOX fuel Tomari’s plan to run MOX fuel and influence public support
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Savannah River Site Gets Nuclear Waste - National Academy of Sciences Draft Report Conf... - 3 views

  • Under Secretary of State for Arms Control Ellen Tauscher said on Monday, September 19, 2011, that high-level nuclear waste once destined for the Yucca Mountain repository will be sent, instead, to the Department of Energy’s Savannah River Site.
  • The Obama Administration has spent more than $1 billion in Stimulus Act funds cleaning up legacy Cold War nuclear and chemical waste at the site. Despite this effort, there is now more radioactive waste at SRS than when the clean-up started. The idea of bringing nuclear reactor waste and surplus weapons plutonium from around the world to SRS only exacerbates already chronic problems. The 312 square mile site near Aiken, South Carolina, was once the home of five reactors that churned out nuclear materials for H-bombs. The last reactor at SRS had to be shuttered for safety reasons during the Reagan Administration. Tritium, which is needed for nuclear weapons, is produced by Tennessee Valley Authority reactors and processed into gas for nuclear weapons at SRS.
  • The decision to use the Savannah River Site in South Carolina as a permanent storage facility is controversial. It is the most radioactive site in the United States. Aiken County, in which part of the site is located, sued the Department of Energy unsuccessfully when the Obama Administration decided not to use the multi-billion-dollar Yucca Mountain facility in Nevada for high-level nuclear waste storage that was supposed to be removed from SRS. Currently, millions of gallons of high-level nuclear waste are stored in 49 leaking tanks on the site as well as huge amounts of surplus plutonium. Deadly chemicals and radiation will contaminate the facility for thousands of years. “The Bomb Plant,” as locals refer to the site, is uniquely unsuitable for a permanent nuclear waste repository, according to leading geologists. It sits on an earthquake fault and one of the most important aquifers in the South. The sandy soil and swampy conditions make it highly vulnerable to waste seepage.
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  • Today, DOE’s National Nuclear Security Administration is paying the French-government-owned-company AREVA to supervise the construction of a new, multi-billion dollar facility to convert excess weapons plutonium into mixed oxide (MOX) fuel for use in civilian nuclear power reactors. (AREVA provided a less potent MOX fuel to Fukushima Daiichi Reactor Number Three last September that suffered a hydrogen explosion after the March earthquake and tsunami.) NNSA’s MOX plant is behind schedule and billions of dollars over budget. It does not have any paying customers for its fuel if it is ever made. It will create its own new waste stream. The Nuclear Regulatory Commission has not licensed the plant, and SRS and DOE management are late reporting on the cost overruns.
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The Bomb Plant « « DC Bureau | Environmental and National Security Stories Th... - 1 views

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    About MOX fuel, a documentary
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Fumbling gov't faces huge challenges in 2012 [27Dec11] [ - 0 views

  • Hiroaki Koide, an assistant professor at the Kyoto University Research Reactor Institute (KURRI), is someone who has made one of the strongest impressions on me among the experts I've spoken to about the ongoing Fukushima nuclear disaster. The public's views toward Koide have changed by the minute. He went from first being considered a nuclear "maverick" to a "pioneer" and finally to "one polemicist from the anti-nuclear camp." His ever-changing reputation has been symbolic of Japan's wavering between the promotion of nuclear energy and independence from it.
  • Last week, a government insider I've known for years wondered aloud whether they couldn't "drag someone like Koide" into the process of drawing up the government's new energy policy.
  • When I asked Koide about this, however, he responded: "I'm completely disillusioned with politics. No matter what committees are set up, nothing's going to change while politics continues to be carried out the way it is now. I won't accept a position from the government. When it comes to one-on-one public debates, however, I'm willing to go anywhere to participate."
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  • Many of the experts who have been involved in the government's related committees since before the outbreak of the nuclear crisis on March 11 are pro-nuclear energy advocates. The inclusion of some anti-nuclear experts in discussions since March has created a bit of a stir, but they're still vastly outnumbered. Talks remain under the tight control of bureaucrats from the Ministry of Economy, Trade and Industry (METI) and the Ministry of Education, Culture, Sports, Science and Technology (MEXT), as well as staff dispatched from utility companies. The lineup is so skewed to nuclear energy promotion that it even gets a government insider anxious to get "someone like Koide" involved.
  • The government is now reviewing its energy policy in terms of a management overhaul at the stricken plant's operator, Tokyo Electric Power Co. (TEPCO), and comprehensive reform of the electric power system. It is beginning to look like TEPCO will be nationalized to ensure stable power supply, with the government obtaining at least two-thirds of TEPCO's shares. A final decision about the utility will be reached before account settlements for the fiscal year ending next March are made.
  • This scheme is a pipe dream. Nuclear power plants across the country are being stopped for regular inspections, with no clear prospects of them being restarted.
  • Winning the public over is the biggest obstacle that lies ahead for the government.
  • So what would happen if the debate over energy policy fails to pick up steam, and things proceed with the "nuclear village," a pro-nuclear collection of politicians, bureaucrats, academics and utilities, firmly in charge? A bureaucratic source offered the following vision: "Dependence on nuclear energy for our power supply can stay at (pre-March 11 levels of) 30 percent. This would still be lower than our original goal of achieving 50-percent dependence, so it would count as a 'reduction in nuclear dependence.' It would be acceptable to abandon the Monju fast-breeder project, but nuclear fuel reprocessing plants should be preserved. We would process MOX fuel from plutonium extracted from spent fuel, and export it at the same level as Britain and France."
  • The government may be able to come up with options, but it won't be able to reach a decisio
  • No one believes the government's recent announcement that "the crisis has been brought under control." This widespread mistrust is not something that one-sided rhetoric from government or business leaders can dispel.
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Three Plutonium Brothers of Japan: "They Are So Safe You Can Drink It" (Updated with Tr... - 0 views

  • The original Japanese video was compiled by "sievert311":http://www.youtube.com/watch?v=Ppon_vEJLCQ&feature=channel_video_title "sievert311" also has a Dr. Shunichi "100 millisievert is safe" Yamashita's video in three languages (English, Spanish, French). Check it out.
  • Tokyo Brown Tabby's latest captioning is over the collection of video clips of three Japanese nuclear researchers, claiming safety for plutonium on the national TV. The first two appeared on TV after the March 11 accident to assure the public that there was nothing to worry about on plutonium, because it was so safe.
  • Three Plutonium Brothers are: (1)Tadashi Narabayashi Professor in Engineering at Hokkaido University (in TV Asahi "Sunday Scramble" on Apr. 3, 2011)
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  • Transcript of the video.
  • (3)Hirotada Ohashi Professor in System Innovation University of Tokyo (at a panel discussion in Saga Pref. on Dec. 25, 2005, regarding using MOX fuel at Genkai Nuke Plant)
  • (2)Keiichi Nakagawa Associate Professor in Radiology The University of Tokyo Hospital (in Nippon TV "news every" on Mar. 29, 2011)
  • Well, half of adult males will die if they ingest 200 grams of salt. With only 200 gram. However, oral lethal dose of plutonium-239 is 32g. So, if you compare the toxicity, plutonium, when ingested, is not very different from salt. If you inhale it into your lungs, the lethal dose will be about 10 milligram. This is about the same as potassium cyanide. That sounds scary but the point is plutonium is no different from potassium cyanide. Some toxins like botulism bacillus that causes food poisoning is much more dangerous. Dioxin is even more dangerous. So, unless you turn plutonium into powder and swallow it into your lungs.... MC: "No one would do that."
  • Besides, plutonium can be stopped by a single sheet of paper. Plutonium is made into nuclear fuels in facilities with good protective measures, so you don't need to worry.
  • For example, plutonium will not be absorbed from the skin. Sometimes you ingest it through food, but in that case, most of it will go out in urine or stools. The problem occurs when you inhale it. Inhaling plutonium is said to increase the risk of lung cancer. MC: "How will that affect our daily lives?" Nothing. MC: "Nothing?"
  • Nothing. To begin with, this material is very heavy. So, unlike iodine, it won't disperse in the air. Workers at the plant MAY be affected. So, I'd caution them to be careful. But I don't think the public should worry. For example, 50 years ago when I was born, the amount of plutonium was 1000 times higher than now. MC: "Oh, why?" Because of nuclear testing. So, even if the amount has now increased somewhat, in fact it's still much less than before. However, if it is released into the ocean through exhaust water, that's a problem. Once outside, plutonium hardly decreases.
  • MC: "It takes 24,000 years before it dicreases to half, doen't it?" That's right. So, in that sense, plutonium is problematic. But then again, there will be no effect on the public. I think you can rest easy. MC: "Let me summarize. Plutonium won't be absorbed from the skin. If it's ingested through food, it will go out of the body in urine. If it's inhaled, it may increase the risk of lung cancer. But since it's very heavy, we don't need to worry."
  • I'd like to point out two things. What happens in a [nuclear] accident depends entirely on your assumptions. If you assume everything would break and all the materials inside the reactor would be completely released into the environment, then we would get all kinds of result. But it's like discussing "what if a giant meteorite hit?" You are talking about the probability of an unlikely event. You may think it's a big problem if an accident occurs at the reactor, but the nuclear experts do not think Containment Vessels will break. But the anti-nuclear people will say, "How do you know that?" Hydrogen explosions will not occur and I agree, but their argument is "how do you know that?"
  • So, right now in the safety review, we're assuming every technically possible situation. For example, such and such parts would break, plutonium would be released like this, then it would be stopped here...something like that. We set the hurdle high and still assume even the higher-level radiation would be released and make calculations. This may be very difficult for you to understand this process, but we do. To figure out how far contamination might spread, we analyze based on our assumption of what could occur. However, the public interpret it as something that will occur. Or the anti-nuclear people take it in a wrong way and think we make such an assumption because it will happen. We can't have an argument with such people.
  • Another thing is the toxicity of plutonium. The toxicity of plutonium is very much exaggerated. Experts dealing with health damage by plutonium call this situation "social toxicity." In reality, there's nothing frightening about plutonium. If, in an extreme case, terrorists may take plutonium and throw it into a reservoir, which supplies the tap water. Then, will tens of thousands of people die? No, they won't. Not a single one will likely die. Plutonium is insoluble in water and will be expelled quickly from the body even if it's ingested with water.
  • So, what Dr. Koide is saying is if we take plutonium particles one by one, cut open your lungs and bury the plutonium particles deep in the lungs, then that many people will die. A pure fantasy that would never happen. He's basically saying we can't drive a car, we can't ride a train, because we don't know what will happen. MC: "Thank you very much."
  • See, we've been duped. Plutonium is not dangerous! We'd better ask these three to drink it up to prove it's not dangerous. Then we will feel safe, won't we? Please doctors, would you do it for us?
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It's 2050: Do you know where your nuclear waste is? [09Sep11] - 1 views

  • Though nuclear power produces electricity with little in the way of carbon dioxide emissions, it, like other energy sources, is not without its own set of waste products. And in the case of nuclear power, most of these wastes are radioactive.1 Some very low level nuclear wastes can be stored and then disposed of in landfill-type settings. Other nuclear waste must remain sequestered for a few hundred years in specially engineered subsurface facilities; this is the case with low level waste, which is composed of low concentrations of long-lived radionuclides and higher concentrations of short-lived ones. Intermediate and high-level waste both require disposal hundreds of meters under the Earth’s surface, where they must remain out of harm’s way for thousands to hundreds of thousands of years (IAEA, 2009). Intermediate level wastes are not heat-emitting, but contain high concentrations of long-lived radionuclides. High-level wastes, including spent nuclear fuel and wastes from the reprocessing of spent fuel, are both heat-emitting and highly radioactive.
  • When it comes to the severity of an accident at a nuclear facility, there may be little difference between those that occur at the front end of the nuclear power production and those at the back end: An accident involving spent nuclear fuel can pose a threat as disastrous as that posed by reactor core meltdowns. In particular, if spent fuel pools are damaged or are not actively cooled, a major crisis could be in sight, especially if the pools are packed with recently discharged spent fuel.
  • Elements of success
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  • All countries with well-established nuclear programs have found themselves requiring spent fuel storage in addition to spent fuel pools at reactors. Some, like the US, use dry storage designs, such as individual casks or storage vaults that are located at reactor sites; other countries, Germany for one, use away-from-reactor facilities. Sweden has a large underground pool located at a centralized facility, CLAB, to which different reactors send their spent fuel a year after discharge, so spent fuel does not build up at reactor sites. Dry storage tends to be cheaper and can be more secure than wet storage because active circulation of water is not required. At the same time, because dry storage uses passive air cooling, not the active cooling that is available in a pool to keep the fuel cool, these systems can only accept spent fuel a number of years after discharge.6
  • The United States had been working toward developing a high-level waste repository at Yucca Mountain, Nevada; this fell through in 2010, when the Obama administration decided to reverse this decision, citing political “stalemate” and lack of public consensus about the site. Instead, the Obama administration instituted the Blue Ribbon Commission on America’s Nuclear Future to rethink the management of the back end of the nuclear fuel cycle.8 The US can flaunt one success, though. The Waste Isolation Pilot Project (WIPP), located near Carlsbad in southern New Mexico, is actually the only operating deep geologic repository for intermediate level nuclear waste, receiving waste since 1998. In the case of WIPP, it only accepts transuranic wastes from the nuclear weapons complex. The site is regulated solely by the Environmental Protection Agency, and the state of New Mexico has partial oversight of WIPP through its permitting authority established by the Resource Conservation and Recovery Act. The city of Carlsbad is supportive of the site and it appears to be tolerated by the rest of the state.9
  • France has had more success after failing in its first siting attempt in 1990, when a granite site that had been selected drew large protests and the government opted to rethink its approach to nuclear waste disposal entirely. In 2006, the government announced that it needed a geologic repository for high-level waste, identified at least one suitable area, and passed laws requiring a license application to be submitted by 2015 and the site to begin receiving high-level waste by 2025.
  • Canada recently rethought the siting process for nuclear waste disposal and began a consensus-based participatory process. The Canadian Nuclear Waste Management Organization was established in 2002, after previous attempts to site a repository failed. The siting process began with three years’ worth of conversations with the public on the best method to manage spent fuel. The organization is now beginning to solicit volunteer communities to consider a repository, though much of the process remains to be decided, including the amount and type of compensation given to the participating communities.
  • the most difficult part of the back end of the fuel cycle is siting the required facilities, especially those associated with spent fuel management and disposal. Siting is not solely a technical problem—it is as much a political and societal issue. And to be successful, it is important to get the technical and the societal and political aspects right.
  • After weathering the Fukushima accident, and given the current constraints on carbon dioxide emissions and potential for growth of nuclear power, redefinition of a successful nuclear power program is now required: It is no longer simply the safe production of electricity but also the safe, secure, and sustainable lifecycle of nuclear power, from the mining of uranium ores to the disposal of spent nuclear fuel. If this cannot be achieved and is not thought out from the beginning, then the public in many countries will reject nuclear as an energy choice.
  • Certain elements—including an institution to site, manage, and operate waste facilities—need to be in place to have a successful waste management program. In some countries, this agency is entirely a government entity, such as the Korea Radioactive Waste Management Organization. In other countries, the agency is a corporation established by the nuclear industry, such as SKB in Sweden or Posiva Oy in Finland. Another option would be a public– private agency, such as Spain’s National Company for Radioactive Waste or Switzerland’s National Cooperative for the Disposal of Radioactive Waste.
  • Funding is one of the most central needs for such an institution to carry out research and development programs; the money would cover siting costs, including compensation packages and resources for local communities to conduct their own analyses of spent fuel and waste transportation, storage, repository construction, operations, security and safeguards, and future liabilities. Funds can be collected in a number of ways, such as putting a levy on electricity charges (as is done in the US) or charging based on the activity or volume of waste (Hearsey et al., 1999). Funds must also be managed—either by a waste management organization or another industry or government agency—in a way that ensures steady and ready access to funds over time. This continued reliable access is necessary for planning into the future for repository operations.
  • the siting process must be established. This should include decisions on whether to allow a community to veto a site and how long that veto remains operational; the number of sites to be examined in depth prior to site selection and the number of sites that might be required; technical criteria to begin selecting potential sites; non-technical considerations, such as proximity to water resources, population centers, environmentally protected areas, and access to public transportation; the form and amount of compensation to be offered; how the public is invited to participate in the site selection process; and how government at the federal level will be involved.
  • The above are all considerations in the siting process, but the larger process—how to begin to select sites, whether to seek only volunteers, and so on—must also be determined ahead of time. A short list of technical criteria must be integrated into a process that establishes public consent to go forward, followed by many detailed studies of the site—first on the surface, then at depth. There are distinct advantages to characterizing more than one site in detail, as both Sweden and Finland have done. Multiple sites allow the “best” one to be selected, increasing public approval and comfort with the process.
  • he site needs to be evaluated against a set of standards established by a government agency in the country. This agency typically is the environmental agency or the nuclear regulatory agency. The type of standards will constrain the method by which a site will be evaluated with regard to its future performance. A number of countries use a combination of methods to evaluate their sites, some acknowledging that the ability to predict processes and events that will occur in a repository decrease rapidly with each year far into the future, so that beyond a few thousand years, little can be said with any accuracy. These countries use what is termed a “safety case,” which includes multiple lines of evidence to assure safe repository performance into the future.
  • Moving forward
  • France, Canada, and Germany also have experienced a number of iterations of repository siting, some with more success than others. In the 1970s, Germany selected the Gorleben site for its repository; however, in the late 1990s, with the election of a Red–Green coalition government (the Greens had long opposed Gorleben), a rethinking of repository siting was decreed, and the government established the AkEnd group to re-evaluate the siting process. Their report outlined a detailed siting process starting from scratch, but to date too much political disagreement exists to proceed further.
  • Notes
  • Nuclear wastes are classified in various ways, depending on the country or organization doing the classification. The International Atomic Energy Agency (IAEA) notes six general categories of waste produced by civil nuclear power reactors: exempt waste, very short-lived waste, and very low level waste can be stored and then disposed of in landfill-type settings; low level waste, intermediate level waste, and high-level waste require more complex facilities for disposal.
  • Sweden is currently the country closest to realizing a final solution for spent fuel, after having submitted a license application for construction of a geologic repository in March 2011. It plans to open a high-level waste repository sometime after 2025, as do Finland and France.
  • Some countries, such as Sweden, Finland, Canada, and, until recently, the US, plan to dispose of their spent fuel directly in a geologic repository. A few others, such as France, Japan, Russia, and the UK have an interim step. They reprocess their spent fuel, extract the small amount of plutonium produced during irradiation, and use it in new mixed oxide (MOX) fuel. Then they plan to dispose of the high-level wastes from reprocessing in a repository.
D'coda Dcoda

Proof Of Fukushima Weapons Program Rests On A Pile Of Manure[09Sep11] - 0 views

  • Soon after Japan's triple disaster, I suggested that an official cover-up of a nuclear-weapons program hidden inside the Fukushima No.1 plant was delaying the effort to contain the reactor meltdowns. Soon after the tsunami struck, the Tokyo Electric Power Company reported that only three reactors had been generating electricity on the afternoon of March 11.. (According to the initial report, these were the older GE-built reactors 1,2 and 6.). Yet overheating at five of the plant's six reactors indicated that two additional reactors had also been operating (the newer and more advanced Nos. 3 and 4, built by Toshiba and Hitachi). The only plausible purpose of such unscheduled operation is uranium enrichment toward the production of nuclear warhead
  • On my subsequent sojourns in Japan, other suspicious activities also pointed to a high-level cover-up, including systematic undercounts of radiation levels, inexplicable damage to thousands of imported dosimeters, armed anti-terrorism police aboard trains and inside the dead zone, the jamming of international phone calls, homing devices installed in the GPS of rented cars, and warning visits to contacts by government agents discouraging cooperation with independent investigations. These aggressive infringements on civil liberties cannot be shrugged off as an overreaction to a civil disaster but must have been invoked on grounds of national security.
  • One telltale sign of high-level interference was the refusal by science equipment manufacturers to sell isotope chromatography devices to non-governmental customers, even to organizations ready to pay $170,000 in cash for a single unit. These sensitive instruments can detect the presence of specific isotopes, for example cesium-137 and strontium-90. Whether uranium was being enriched at Fukushima could be determined by the ratio of isotopes from enriched weapons-grade fissile material versus residues from less concentrated fuel rods.
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  • Now six months after the disaster, the smoking gun has finally surfaced, not on a Japanese paddy field but inside a pile of steer manure from a pasture near Sacramento, California
  • The sample of cattle dung and underlying soil was sent to the nuclear engineering lab of the University of California, Berkeley, which reported on September 6:
  • We tested a topsoil sample and a dried manure sample from the Sacramento area. The manure was produced by a cow long before Fukushima and left outside to dry; it was rained on back in March and April. Both samples showed detectable levels of Cs-134 and Cs-137, with the manure showing higher levels than the soil probably because of its different chemical properties and/or lower density. One interesting feature of t the Sacramento and Sonoma soil samples is that the ratio of Cesium-137 to Cesium-134 is very large - approximately 17.6 and 5.5, respectively. All of our other soil samples until now had shown ratios of between 1 and 2. We know from our air and rainwater measurements that material from Fukushima has a cesium ratio in the range of approximately 1.0 to 1.5, meaning that there is extra Cs-137 in these two soil samples. The best explanation is that in addition to Fukushima fallout, we have also detected atmospheric nuclear weapons testing fallout in these soils. Weapons fallout contains only Cs-137 (no Cs-134) and is known to be present in older soils ..Both of these samples come from older soils, while our samples until this point had come from newer soils.
  • The last atmospheric nuclear blast at the Nevada Test Site occurred in 1962, whereas the manure was presumably dropped less than 49 years ago. Over the past year, the approximate life-span of a cow patty, the rain that fell on the plain came not from a former province of Spain. Within that short time-frame, the only possible origin of radioactive fallout was Fukushima.To think otherwise would be lame.
  • Sun-dried manure is more absorbent than the rocky ground of Northern California, which explains the higher level in Sacramento dung than in the Sonoma soil. As a rule of thumb, the accuracy of radiation readings tends to improve with higher concentration of the test material.The manure acted like a sponge for the collection of radioactive rainfall. Its ratio of Cs-137 (resulting from enriched uranium) to Cs-134 (from a civilian fuel rod) is more than 17-to-1. Larger by 1,700 percent, this figure indicates fission of large amounts of weapons-grade material at Fukushima.
  • The recent higher readings were probably based on either late releases from a fire-destroyed extraction facility or the venting of reactor No.3, a Toshiba-designed unit that used plutonium and uranium mixed oxide or MOX fuel. Unannounced nighttime airborne releases in early May caused radiation burns in many people, as happened to my forearms. Those plumes then drifted toward North America.
  • Enrichment of uranium for nuclear warheads is prohibited under constitutional law in Japan and by terms of the Non-Proliferation Treaty. Since no suspects have been charged by prosecutors, this cannot be a plot by a few individuals but stands as the crime of a national entity.
  • Yellow-Cake Factory 608   Fukushima Province has a history of involvement in atomic weapons development, according to a New York Times article by Martin Fackler titled "Fukushima's Long Link to a Dark Nuclear Past" (Sept. 6). Following the lead of Japanese news reports, the correspondent visited the town of Ishikawa, less than an hour's drive south of the Fukushima No.1 nuclear plant. There he interviewed Kiwamu Ariga who as a student during the war was forced to mine uranium ore from a local foothill to supply the military-run Factory 608, which refined the ore into yellow-cake.
  • Several research groups worked on building a super-weapon for militarist Japan. The Naval Technology Research Institute was best-positioned due to its secret cooperation with the German Navy. Submarine U-234 was captured in the Atlantic after Germany's surrender with a cargo of uranium along with two dead passengers - Japanese military officers .Soon after departing Norway, U-864 was bombed and sunk, carrying a load of two tons of processed uranium..
  • In the article for the Atlanta Constitution, dated, Oct. 2, 1946, David Snell reported that the Japanese military had successfully tested a nuclear weapon off Konan on Aug. 12, 1945. There are detractors who dispute the account by a decommissioned Japanese intelligence officer to the American journalist, stationed in occupied Korea with the 24th Criminal Investigation Detachment of the U.S. Army. A cursory check on his background shows Snell to have been a credible reporter for Life magazine, who also contributed to the Smithsonian and The New Yorker magazines. A new book is being written by American and Russian co-authors on the Soviet shoot-down of the Hog Wild, a B-29 that flew over Konan island soon after the war's end..
  • Due to its endemic paranoia about all things nuclear, the U.S. government had a strong interest in suppressing the story of Japan's atomic bomb program during the war, just as Washington now maintains the tightest secrecy over the actual situation at Fukushima.
  • The emerging picture shows that nuclear-weapons development, initiated in 1954 by Prime Minister Nobusuke Kishi and supervised by Yasuhiro Nakasone, was centered inside civilian nuclear plants, since the Self-Defense Forces were bound by strict Constitutional rules against war-making and the Defense Agency is practically under the direct supervision of the U.S. Joint Chiefs of Staff. Funding came from the near-limitless budget of the Tokyo Electric Power Company (TEPCO), which today claims financial insolvency without explanation of how its vast cash holdings disappeared. A clandestine nuclear program must be expensive, since it would include the cost of buying the silence of parliament, the bureaucracy and foreign dignitaries.
  • Following the March 11 disaster, TEPCO sent a team of 250 emergency personnel into the plant, yet only 50 men were assigned to cooling the reactors. The other 200 personnel stayed out of sight, possibly to dismantle an underground plutonium-extraction facility. No foreign nuclear engineers or Japanese journalists were ever permitted entry into the reactor structures.   Radiation leakage from Fukushima No.1 prevented local police from rescuing hundreds of tsunami survivors in South Soma, many of whom consequently went unaided and died of wounds or exposure. Tens of thousands of farmers have lost their ancestral lands, while much of Japan's agriculture and natural areas are contaminated for several generations and possibly longer, for the remaining duration of the human species wherever uranium and plutonium particles have seeped into the aquifers.
  • TEPCO executives, state bureaucrats and physicists in charge of the secret nuclear program are evading justice in contempt of the Constitution. As in World War II, the Japanese conservatives in their maniacal campaign to eliminate their imagined enemies succeeded only in perpetrating crimes against humanity and annihilating their own nation. If history does repeat itself, Tokyo once again needs a tribunal to send another generation of Class-A criminals to the gallows.
  •  
    By Yoichi ShimatsuFormer editor of The Japan Times Weekly
Dan R.D.

BBC News - France nuclear: Marcoule site explosion kills one [12Sep11] - 0 views

  • One person has been killed and four injured, one seriously, in a blast at the Marcoule nuclear site in France.
  • But interior ministry spokesman Pierre-Henry Brandet later said there had been no leak of radiation, neither inside nor outside the plant.
  • None of the injured workers was contaminated by radiation, said officials. The worker who died was killed by the blast and not by exposure to nuclear material.
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  • The Centraco treatment centre belongs to a subsidiary of EDF. It produces MOX fuel, which recycles plutonium from nuclear weapons. There are no nuclear reactors on site.
  • The EDF spokesman said blast happened in a furnace used to burn waste, including fuels, tools and clothing which had been used in nuclear energy production but had only very low levels of radiation.
  • "The fire caused by the explosion was under control," he said. Another official later said the incident was over.
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