SimplyInfo » Entries tagged with "daiichi"
Fukushima Daiichi Work Updates January 14, 2015
TEPCO announced they have started a new reverse osmosis system to filter contaminated water. Based on the tank labels, the new system appears to have been constructed by Hitachi/GE. From TEPCO’s handout to the press: Facilities overview • Processing operation start date: 1/10/2015 • Capacity: 500-900 m 3 per day • Removal capacity: strontium reduces to 1/100 to1,000 (goal) Kurion announced new work to develop a robot that could plug leaks in the reactor containment structures. The effort is a partnership with Japan’s IHI company. Kurion is not a robotics company but has been a smallish contractor in the US at … Read entire article »
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Fukushima Daiichi Seafront Well Radiation Skyrockets
Well number 1-12 experienced an over 50 times increase in radiation this week. The well sits between the unit 1 and unit 2 intakes. This reading is the highest to date for this well. It is currently unclear exactly what is causing the increase since no nearby wells increased before or in conjunction with this one. There are three possible reasons for this well to increase: 1. The groundwater plume of contamination from unit 1 is now … Read entire article »
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Fukushima Unit 1 New Photos Reveal Additional Damage
Photos taken during the removal of the cover on unit 1 showed some additional conditions on the refueling floor that had not been apparent until now. A section of the concrete reactor cover was dislodged during the events at unit 1. The other end of the cover section is not visible, this would give a better idea of how the section became dislodge. It could indicate that the events at unit 1 were worse than … Read entire article »
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Fukushima Daiichi Updates From IRID Part 3; Testing The Goo
IRID has made some progress on their research to find ways to seal the containment structures at Fukushima Daiichi. The plan has been to flood the containment structures in order to provide shielding during the fuel removal procedures. Concern has been raised about the ability of these structures to hold the weight and pressure of that much water or how this would impact the structure during an earthquake. The structures are already severely damaged along … Read entire article »
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3 Workers Injured At Fukushima Daiichi, 1 In Critical Condition
Three workers were injured when steel construction materials for tanks at Fukushima Daiichi fell on them. One is in the hospital in critical condition. One with a possible broken leg. Details available here http://www.thestar.com.my/News/Regional/2014/11/07/Fukushima-construction-workers-hurt-operator/ This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are viewing this page on any website other than www.simplyinfo.org (or www.fukuleaks.org) it may be plagiarized, please let us know. If you wish to reproduce any of our content in full or in more than a phrase or quote, please contact us first to obtain permission. … Read entire article »
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How Fukushima Daiichi Could End Up Fueling Cars In Japan
One of the funded research projects towards the response to the Fukushima nuclear disaster may have an unusual side effect if the project eventually goes into operation. The Kurion tritium removal system being developed for use at Fukushima Daiichi could provide hydrogen fuel for cars in Japan. If this technology works as claimed and can be put into operation two of the byproducts would be hydrogen gas and pure oxygen. These byproducts could be captured for … Read entire article »
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Fukushima Unit 1 Fuel Removal Delayed
TEPCO announced they would delay the removal of both spent fuel from the pool and from the reactor vessel at unit 1, Fukushima Daiichi. What is not clear is exactly why. TEPCO cited having to remove excessive debris from the buildings. They have known the conditions inside the building and the refueling floor for a number of years. Investigations into the building and refueling floor began as early as 2011 with an in depth screening … Read entire article »
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Fukushima; Radiation Spike In Unit 1 Discharge Canal
TEPCO hasn’t released radiation readings for the set of discharge canals for well over a year. This location has been historically quite high when they sampled it before. TEPCO announced that the sampling location in the discharge canal was again quite high while a downstream location was not. They provided no explanation where they assume the highly contaminated water is migrating to. Beta radiation: 120,000 bq/liter Cesium 134: 31,000 bq/liter Cesium 137: 95,000 bq/liter TEPCO closed off the end of the discharge … Read entire article »
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What May Be Causing The New Reactor Building Leak At Fukushima Daiichi
TEPCO admitted last week that some subdrain pit wells at the Fukushima Daiichi plant showed a large increase in contamination. These wells were originally a system used to remove groundwater from the reactor building basements, similar to a sump pump system. After the disaster these wells were largely ignored until this year. TEPCO began sampling them and later came up with this idea to pump water out of the subdrain pits, decontaminate it and dump … Read entire article »
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Two Quakes Hit Offshore Of Fukushima Daiichi
Two moderate quakes hit offshore of Fukushima Daiichi today. “The Japan Meteorological Agency says the first earthquake struck at 9:45 p.m. JST (8:45 a.m. EDT in the U.S.) and registered a magnitude of 5.0. The second quake, a slightly stronger magnitude-5.2 tremor, struck 46 minutes later.” The quakes were about 50km deep, no tsunami alerts issued. Both monitoring cameras at the plant didn’t show any obvious signs of anything changed. No clear reports of conditions at the plant have been released by TEPCO. The quake strength isn’t unusual, the close time frame is. http://www.weather.com/news/fukushima-two-earthquakes-one-hour-20140924 http://www.globalpost.com/dispatch/news/xinhua-news-agency/140924/m50-quake-jolts-fukushima-japan This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are … Read entire article »
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What Yoshida Said
Various news outlets have dripped out bits of information from the now released testimony of the late Fukushima Daiichi plant chief. Additional information has come from a Kyodo News series from interviewing workers. Wall Street Journal showed Yoshida’s frustration with politicians and the head office in Tokyo: He made plain that in his view, essential personnel remained on site. “The head branch of the company and the government maybe were making idiotic arguments about us fleeing, but at … Read entire article »
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ALPS 2.0 Begins Test Operations At Fukushima Daiichi
The new and improved version of ALPS has begun test operations. TEPCO announced the first of the two units has begun test operations. The second will go into testing mode in October. These new units build on the lessons learned from the ongoing failures of the initial ALPS systems. Better materials, coatings and safety systems have been used to try to overcome the problems found in the original units. TEPCO hopes to be able to treat … Read entire article »
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IRID Admits Fukushima Unit 1 Fuel May Be Outside Of Containment
The head of IRID made this interesting admission during the fall meeting of Atomic Energy Society of Japan last week. He admitted that the melted fuel for unit 1 is outside the pedestal and could possibly be outside of containment. He cited this situation as being one of the reasons they are looking into alternative methods of fuel extraction, not just TEPCO’s initial idea of extraction through the reactor vessel. He did state that they think … Read entire article »
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Tritium Filtration To Be Tested For Fukushima Daiichi
This is a considerable development. Tritium is a considerable contamination problem at Fukushima Daiichi, with hundreds of billions of becquerels of it leaking to the sea each day. The big problem with tritium is that it can not be easily removed from contaminated water. METI has been holding meetings all summer to look at possible ways to deal with the tritium problem. Experts from the US and France both suggested that TEPCO not bother to deal … Read entire article »
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Fukushima Refueling Machine Portion Falls In Spent Fuel Pool
TEPCO is reporting that the console portion of the refueling machine that fell into the spent fuel pool of unit 3 during the initial explosion has now fallen further into the pool. Workers were attempting to remove the section of the refueling machine from the pool when it broke loose and fell into the pool. TEPCO thinks it fell into a section of the pool beside the fuel racks but will be doing an underwater camera inspection … Read entire article »
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Fukushima Disaster Interviews Clear Up Evacuation Of Daiichi Question
A new report released by Kyodo News seems to clear up what transpired and who may have wanted to abandon Fukushima Daiichi at the height of the meltdowns. The series of events are outlined as far as who said or did what during those hours, these are in time order based on either a date/time stamp or Kyodo’s narrative: 1. Susumu Kawamata (TEPCO) told Banri Kaida (NISA) “I’m sorry. We’ve tried many things, but we are in a … Read entire article »
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2nd ALPS Decontamination System Installed At Fukushima Daiichi
A second ALPS decontamination system is being installed at Fukushima Daiichi and will begin test operations in early September. NRA announced the new system yesterday. The first ALPS system, designed by Toshiba has been plagued with problems that required around a year of testing operations to make it work properly. Another system in testing phases at the plant is a new Hitachi system that would remove some of the isotopes that ALPS can not. image credit | … Read entire article »
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Fukushima Daiichi Sea Releases Updated To 157 Billion Bq Per Day
Yesterday we reported on TEPCO’s admission of ongoing daily sea releases of contaminated water to the Pacific. The TEPCO rep in the press conference cited the tritium level as being 1 billion becquerels per day. The graph submitted by TEPCO to METI showed a quite different amount for the tritium readings. The journalists at the conference prodded TEPCO for actual readings due to the graph having wide ranges and exact numbers were not published along side … Read entire article »
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TEPCO To Begin Unit 3 Crane Removal From Spent Fuel Pool
A brief note in the daily reports mentioned that TEPCO will be pausing cooling to the unit 3 spent fuel pool again. This time it is to begin work to remove the refueling crane that fell into the pool during the blast. This work is obviously risky to an extent as they try to remove the heavy refueling crane from the damaged fuel pool. TEPCO previously installed a flexible dam in the pool to try … Read entire article »
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TEPCO Failed To Deliver Needed Equipment To Fukushima Daiichi At Height Of Disaster
NHK is reporting this new admission as coming from the late plant manager Masao Yoshida. He discussed problems with getting desperately needed equipment to the plant during the meltdowns. TEPCO sent batteries needed to try to operate control room equipment without any notice of the size or voltage of the batteries. Most batteries were too heavy to carry. Workers had to waste time sorting through the batteries to find ones that were usable. Yoshida also noted … Read entire article »
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Muon Detection Tests Begin In Japan Towards Fuel Detection at Fukushima Daiichi
A sample testing box set was tested at JAEA’s Tokai reactor in late July. The tests helped them come up with what they think will be proper shielding for the detectors. IRID reports that they think about 10cm of shielding should be enough to enable detectors to be installed at Fukushima Daiichi. There will still be considerable challenges to an actual installation. In order to do the actual detection on the containment structure of each reactor, … Read entire article »
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Govt. To Disclose All Yoshida Testimony Of Fukushima Disaster
The Japanese government has announced that all 20 hours of Masao Yoshida’s testimony about the Fukushima nuclear disaster will be made public in September. Previously, Fukushima officials said they would sue to force the disclosure of the testimony. Yoshida is the one person who truly knew what transpired at Fukushima Daiichi during the height of the disaster. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content … Read entire article »
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NHK Admits Fukushima Daiichi Ejected Fuel After Multiple Studies Document It
A rough translation of the NHK article tells something almost unbelievable to see admitted by the state news agency. “It is a result, in addition to the radioactive cesium, zirconium material of the fuel rods and uranium, and iron of the material of the pressure vessel, material that matches the structure of the nuclear reactor and nuclear fuel has been detected.” NHK has been one of the less critical news sources in Japan, frequently downplaying or omitting … Read entire article »
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TEPCO Finally Repairs Unit 5 Spent Fuel Pool Cooling
After weeks of unit 5 not having an operational spent fuel pool cooling system, TEPCO has finally replaced the leaking valve. The valve interior showed considerable corrosion that lead to the leak. TEPCO failed to explain why it took them so long to repair the system. While the repair was delayed the spent fuel pool and reactor vessel that still contains fuel had to share the reactor cooling system. Unit 5 is the second newest reactor … Read entire article »
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Fukushima Daiichi Still Releases 10 Million Becquerels Per Hour
TEPCO admitted today that the plant is still releasing 10 million becquerels per hour to the atmosphere. This is in addition to all the initial and over time releases from the early phases of the disaster. TEPCO also claimed that the incident during unit 3′s demolition only released one trillion becquerels, much lower that the 4 trillion becquerels release estimate for the incident compiled by researchers at Kyoto University who found the releases in the … Read entire article »
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Fukushima: Unit 1 Cover Removal & Demolition Work To Begin Soon
TEPCO has announced their plan to remove the cover of unit 1 so that debris on the refueling floor can be cleaned off. This work will enable viewing of the spent fuel pool and the condition of the reactor well. The work has come under increased scrutiny after it was discovered that similar demolition work at unit 3 had caused contamination up to 50km from the plant due to the wind blowing radioactive building dust. TEPCO’s … Read entire article »
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TEPCO Prepares For Tropical Storm At Fukushima Daiichi
TEPCO reported to NHK that they are preparing for the incoming tropical storm. Cranes and tank weirs have been prepped for the storm. TEPCO insists they will continue working on some tasks until a warning is issued. Groundwater pumping and frozen wall work will continue until warnings are issued. Other work appears to be suspended. This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are viewing this page on any website other than www.simplyinfo.org (or www.fukuleaks.org) it may be plagiarized, please let us know. If you wish to reproduce any of our content in full or in more than … Read entire article »
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New Robot Inspection Of Fukushima Unit 1
Two robots, sponsored by IRID conducted an investigation of unit 1. The areas between the 2nd and 3rd floors have radiation levels too high for humans to enter for any extended period of time. Robots Rosemary and Sakura were sent in to do a coordinated inspection. Rosemary is equipped with a newer type of gamma camera to record radiation readings. Sakura provides additional views of the other robot and acts as a wireless … Read entire article »
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TEPCO Restarts Fukushima Unit 5 Pool Cooling Without Permanent Fix
TEPCO has announced they have restarted the cooling system for unit 5 just days after stopping it due to a valve body leak. TEPCO mentions in this handout of the restart but there is no permanent fix mentioned as being completed or proposed. Earlier reports said TEPCO would suspend the system until they could determine a permanent fix. Apparently some patch on a cracked valve is now considered a permanent fix. Temps in the spent fuel continue … Read entire article »
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Welded Water Tanks Installed At Fukushima Daiichi
Welded water tanks to replace the miles of leaking bolt together tanks at Fukushima Daiichi are being installed. The tanks are welded off site and shipped in by barge, ready to install. This allows workers to do the bulk of the work somewhere safe, leaving only the final move and installation to be done in the radioactive areas. This does make one wonder why TEPCO hadn’t thought of this themselves when the first tanks were … Read entire article »
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TEPCO’s Tents For Tanks Plan At Fukushima Daiichi
TEPCO has told the NRA that they intend to cover contaminated water tanks at Fukushima Daiichi with some form of tent to help eliminate rainwater build up and contamination. TEPCO presented 6 ideas for how they might try to cover the tanks. Some appear more effective than others. There does not appear to be a timeline or deadline for this work yet. 1 proposed gutter + Weir cover system 2 to plan tank top roof installation plan. 3 proposal for membrane material tent 4 draft simple roof system 5 large tents method 6 proposed permanent structure systems This article would not be possible without the extensive efforts of the SimplyInfo research … Read entire article »
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Japanese Govt.; Evacuating Around Fukushima Daiichi Would Take 5 Days
Interviews given to the government investigation of the Fukushima disaster and released by Asahi Shimbun showed the reality of evacuation attempts. Tetsuro Fukuyama, a deputy cabinet minister was put in charge of announcing evacuations related to the unfolding disaster at Fukushima Daiichi. Fukuyama admitted that evacuating the 30km zone would take 4-5 days. The government ordered evacuations first for those closest to the plant (3km) hoping to get those in the most danger out first. As conditions … Read entire article »
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Fukushima Daiichi Unit 4; 1078 Fuel Assemblies Removed
1078 fuel assemblies have been removed from unit 4 and transferred to the common pool. http://www.tepco.co.jp/en/decommision/index-e.html This article would not be possible without the extensive efforts of the SimplyInfo research team Join the conversation at chat.simplyinfo.org All content is copyright SimplyInfo.org. Content cited, quoted etc. from other sources is under the respective rights of that content owner. If you are viewing this page on any website other than www.simplyinfo.org (or www.fukuleaks.org) it may be plagiarized, please let us … Read entire article »
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New Strontium 90 Removal System To Be Installed At Fukushima Daiichi
Kurion will provide a truck back filter system to remove strontium 90 from contaminated water currently held in storage tanks at Fukushima Daiichi. Kurion, Toshiba and TEPCO have all been mum about the exact role the new filter system plays vs. the ALPS system that has been the main hope for decontaminating water. ALPS is also intended to remove strontium but also to remove a wider array of isotopes. The system should be on line at some … Read entire article »
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New Unit 1 Findings Indicate Contamination Path
TEPCO’s new reports on the unit 1 torus room already showed that a vacuum breaker caused an issue. Now they are admitting some issues near the venting pipe, but we found even more. The venting pipe has about 2.4 sieverts per hour near it as taken with the survey robot. Previous work found about 4 sieverts an hour in another section of that pipe on the first floor and considerable radiation coming from the vent pipe … Read entire article »
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Hosono Confirms TEPCO Corporate Wanted To Abandon Fukushima Daiichi
In a rare interview prompted by the recent Asahi Shimbun article series on the statements of late Fukushima Daiichi plant manager, Masao Yoshida, former cabinet advisor Goshi Hosono granted an interview. Hosono was acting as a go between with Yoshida at Fukushima Daiichi and Prime Minister Kan during the disaster. Hosono’s communications and recollection of events at the Prime Minister’s office clearly showed it was TEPCO’s corporate office in Tokyo that wanted to abandon Fukushima … Read entire article »
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Asahi Shimbun Releases Yoshida Testimony On Fukushima Daiichi
Asahi Shimbun has continued to release portions of an interview between the late Fukushima Daiichi plant manager Masao Yoshida and a government investigation team. The series of articles have had multiple revelations about the early days of the disaster. We will have more reporting on the findings and what they might mean as the articles are released. The Japanese government has refused to release the interviews claiming Yoshida didn’t want them made public. The government … Read entire article »
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New Documents Released Admit Concerning Events During Fukushima Disaster
Asahi Shimbun obtained a copy of Masao Yoshida’s testimony to the government investigation into the nuclear disaster. Yoshida was the manager of Fukushima Daiichi when the disaster hit. Yoshida testified that 90% of the plant staff including managers fled the plant when told to fall back to a safe location after radiation levels began to rise. This is now raising questions about the ability of private sector workers to effectively battle a major nuclear disaster. In … Read entire article »
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Japan Government To Take Over Fukushima Decommissioning & Costs
A new law has been enacted by the Diet to allow the current entity dealing with compensation for victims to now also manage much of the decommissioning of Fukushima Daiichi. They will also be tasked with using government funds for any decommissioning effort TEPCO balks at paying for. They will also have some authority to instruct TEPCO to do things. The The Nuclear Damage Liability and Facilitation Fund could be ready to take on the additional role … Read entire article »
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Muon Detectors To Be Installed At Fukushima Daiichi Next Year
TEPCO and contractor Toshiba plan to install muon detectors next year at Fukushima Daiichi. This technology will allow scientists to “image” the melted reactor fuel and hopefully identify the location of the fuel. The concept has been discussed since 2012 when Los Alamos national lab suggested the project to TEPCO. The lead researcher was hired by Toshiba’s research division and has been working on the concept in Japan. A test run on a small research reactor … Read entire article »
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