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Fukushima Decontamination Work Racket Yakuza Arrested

28 sept yakuza decontamination business.pngBags containing debris from decontamination work are piled up in a Bags containing debris from decontamination work are piled up in a tentative storing site in Naraha, Fukushima Prefecture. The location pictured is not where the workers in the article were operating.

Yakuza arrested in Fukushima decontamination work racket

Three men, including a yakuza gang boss affiliated with Yamaguchi-gumi, Japan’s largest crime syndicate, have been arrested on suspicion of illegally supplying workers for government-commissioned decontamination work related to the 2011 Fukushima nuclear power plant accident.

The three are yakuza group leader Hidenobu Maruta, 48, of Tokyo’s Katsushika Ward, construction company executive Shigeki Yamamura, 59, of Koriyama, Fukushima Prefecture, and Akio Kitano, 51, an unemployed resident of Saitama, Tokyo police announced Sept. 27.

All three deny the allegations of employment brokering without a license, a violation of the Employment Security Law, and intermediate exploitation, which is banned under the Labor Standards Law.

Maruta and Yamamura are accused of supplying two workers from January 2015 to March 2016 to a sub-subcontractor who carries out decontamination operations for the government project, and receiving 160,000 yen ($1,430) together in commission without consent from the labor ministry.

The cleanup work was conducted in Tomioka, Fukushima Prefecture.

Maruta and Kitano are suspected of taking commission amounting to about 920,000 yen from the wages of those two workers, according to the police department in charge of organized crime.

The three suspects are said to have shared cut of 2,000 yen to 3,000 yen from each of the workers’ 16,000-yen daily wage.

Further to the exploitation of the aforementioned two workers, the suspects are believed to have received about 10 million yen collectively through brokering about 10 other workers to the sub-subcontractor.

http://www.asahi.com/ajw/articles/AJ201709280045.html

3 nabbed over alleged illicit job mediation for Fukushima cleanup workers

Police on Sept. 27 arrested three people, including a high-ranking member of a gang affiliated with the Yamaguchi-gumi crime syndicate, on suspicion of illicitly introducing workers to other businesses to engage in Fukushima decontamination work.

The three suspects, including a gang member in his 40s, were arrested on suspicion of violating the Employment Security Act by mediating in paid work without permission. Police believe that the service charges the suspects received were being used to fund gang activities.

Investigators said that the three are suspected of having introduced decontamination workers to other businesses since 2014 and charging introduction fees, despite lacking permission from the Minister of Health, Labor and Welfare that is required by law.

A consulting company based in Tokyo’s Nerima Ward that was effectively run by the suspects’ gang dispatched workers to decontamination zones through other businesses. The workers reportedly engaged in decontamination work in Fukushima Prefecture.

In January 2013, Yamagata Prefectural Police arrested a high-ranking member of a gang affiliated with the Sumiyoshi-kai crime syndicate on suspicion of violating the worker dispatch law in connection with the dispatch of workers engaging in Fukushima-related decontamination work.

http://mainichi.jp/english/articles/20170927/p2a/00m/0na/015000c

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September 29, 2017 Posted by | Fukushima 2017 | , , , | Leave a comment

Court finds ex-environment ministry official Yuji Suzuki guilty of taking bribes

n-fukbribe-a-20170630-870x580.jpgAn excavator sits among bags of nuclear waste in the town of Tomioka near the Fukushima No. 1 nuclear plant in March 2016.

 

FUKUSHIMA – The Fukushima District Court on Thursday sentenced a former Environment Ministry official to one year in prison, suspended for three years, for accepting bribes to help a company win a decontamination project in Fukushima Prefecture.

The court also ordered 57-year-old Yuji Suzuki, who formerly worked at a branch of the ministry’s environment regeneration office in Fukushima, to pay a fine of ¥230,000.

Presiding Judge Shoji Miyata said that with people aiming for a swift recovery from the March 2011 earthquake, tsunami and nuclear disaster, rapid and secure implementation of decontamination work was strongly anticipated in areas tainted by radioactive substances from Tokyo Electric Power Company Holdings Inc.’s Fukushima No. 1 plant.

Miyata criticized Suzuki, saying that the fact that he betrayed those expectations “cannot be overlooked” and that the social impact of his actions was “not insignificant.”

As for the reason for the suspended sentence, Miyata said Suzuki was “showing regret.”

According to the ruling, Suzuki helped a civil engineering and construction company based in Takaoka, Toyama Prefecture, join a decontamination project in the Fukushima town of Namie as a subcontractor of a consortium.

In return, Suzuki received ¥25,000 in cash and benefits worth ¥206,000 in the form of dining and accommodation between September 2015 and June 2016.

http://www.japantimes.co.jp/news/2017/06/29/national/crime-legal/court-finds-ex-environment-ministry-official-guilty-taking-bribes/

June 30, 2017 Posted by | Fukushima 2017 | , , , | Leave a comment

Even as Evacuation Orders are Lifted, Recovery Remains Distant Prospect for Many Fukushima Residents

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Six years after the disaster at the Fukushima Daiichi Nuclear Power Station, the government has lifted evacuation orders on four municipalities around the plant, allowing residents to return home for the first time since the meltdowns. The author, who has been involved in reconstruction planning since the evacuation orders were first given, calls for a multiple-track plan to meet the complicated needs of those who return and evacuees who continue to live elsewhere as evacuees.

The Beginning of the End, or the Prelude to New Heartache?

The Japanese government on March 31 and April 1 of this year lifted evacuation orders for areas around the Fukushima Daiichi Nuclear Power Station it issued in the wake of the nuclear accident at the plant more than six years ago. The decision finally allowed some 32,000 residents of the four radiation-affected municipalities of Iidate, Kawamata, Namie, and Tomioka to return to their homes. Following the move, the only places still subject to evacuation orders are Futaba and Ōkuma (where the Daiichi plant is located) and parts of five neighboring towns and villages.

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The Japanese media almost universally hailed the decision as a “major milestone” toward residents of affected areas rebuilding their lives. But this supposed milestone can be taken in two quite different ways. In much of the media there was an optimistic sense of a return to normalcy, resulting in the view that the evacuation orders lifting was a long-awaited new beginning in the recovery effort, and that residents would finally be able to start rebuilding their lives and communities. Another, more cynical view, however, is that it merely marked the start of new string of woes. Considering the challenges that face residents, in my opinion this second interpretation is closer to the truth.

The optimistic view is pushed by the national and prefectural authorities in charge of advancing recovery efforts in Fukushima, and is based on the following scenario.

1. Designate evacuation zones across areas affected by radiation, and provide support to evacuees in the form of temporary housing and compensation.

2. Decontaminate the affected areas.

3. Prepare to lift the evacuation orders as radiation levels fall.

4. Rebuild local infrastructure and reestablish local services, rebuilding health, welfare, and retail facilities where necessary.

5. Lift evacuation orders.

6. Evacuees return home.

For the thousands of evacuees forced to live away from their homes over the past six years, however, there is quite a different sense to the orders being lifted. Some people will decide to return home while others will remain where they are. No matter their decision, though, we must face the fact that new challenges await both groups.

Many of those most eager to return home are the elderly, but health and welfare provisions are still far from satisfactory in many areas. There are also lingering doubts for other members of the community, such as the future of the area’s farming, forestry, and fisheries. Local economies have been devastated, raising the question of employment and whether people will even be able to buy daily necessities, let alone support themselves long term.

The situation at the power plant also remains precarious and much work remains to be done. The problem of radioactive water has yet to be solved and a medium-term storage facility must be found for huge amounts of contaminated material. However, there is not even a timetable for when these will be accomplished. Faced with such uncertainty, many people will simply choose to remain where they are rather than risk returning home. However, this decision brings a different set of problems, as many of the support systems put in place to help evacuees will be cut off now that they are no longer prevented from going back.

In surveys carried out between 2014 and 2017 by the Reconstruction Ministry, the Fukushima Prefectural government, and the evacuated municipalities, more than half of residents of Futaba, Namie, Ōkuma, and Tomioka said they did not plan to return to their homes after the evacuation orders were lifted. In other areas where more than a year has already passed since evacuation orders were rescinded, the number of residents who have returned remains at 20% or less everywhere except Tamura. These sobering figures illustrate the steep road awaiting evacuees wishing to go home.

Assessing Conditions in the Affected Areas

The fact that authorities lifted evacuation orders despite so many issues still unresolved demonstrates a disregard for the challenges confronting residents. Now more than ever, we must consider and assess the uncertainties residents face and ascertain future challenges.

In the areas recently deemed fit again for human habitation, flexible containers filled with contaminated materials still lie in heaps at various temporary storage points, where they have been since clean-up operations began. While the plan is to eventually move these to medium-term storage facilities, I wonder if authorities when deciding to lift the evacuation order really understood the anxiety and stress placed on residents who must live their lives surrounded by mountains of contaminated debris.

d00319_ph02-680x451Containers of contaminated soil in temporary storage await safety checks in Minamisōma, Fukushima, on June 11, 2016.

The town of Hirono is situated 22 kilometers from Fukushima Daiichi. Following the disaster, the town’s medical services fell to the sole efforts of the head of the local hospital, Dr. Takano Hideo. However, the future of the hospital was thrown in doubt when Takano died in a fire late last year. Nakayama Yūjiro, a physician in Tokyo, assisted for a time, spending two months earlier this year as the hospital’s resident doctor.

Nakayama wrote a diary based on his experience, which was published in April 2017 by Nikkei Business online as Ishi ga mita Fukushima no riaru (The Reality of Fukushima: A Doctor’s View). In his account, Nakayama describes the ongoing tragedy of the disaster and discusses the numerous people who have died from conditions brought on by the stress of residing in temporary living conditions. He points to three main reasons for these deaths: Separation from family and loss of community; interruption of ongoing medical treatment; and change of environment. Nakayama’s experience illustrates how in indirect ways, the death toll from the disaster continues to rise.

Giving Up on the Dream of Going Home

The situation is worse still for people whose homes are subject to ongoing evacuation orders. Sasaki Yasuko, who was evacuated from her home in Namie, spent the time since the disaster in temporary housing in the town of Koori. In a 90-page record of her life as an evacuee called Osoroshii hōshanō no sora no shita (Under a Fearsome Radioactive Sky), she writes: “I don’t want to die in temporary housing. That’s all I ask. Everyone is talking about wrapping things up and bringing an end to the disaster—but I don’t want my life to end like this. . . . Since the disaster, there seem to be slogans everywhere I go that are meant to keep our spirits up. But what more can I do than what I’m already doing? I wish someone would tell me what I’m expected to do.”

I met Sasaki for the last time in the spring of 2013. She was still living in temporary housing and was working to complete a model of her home in Namie, desperately trying to recreate from memories a place she thought she would never see again. Around a month after that, I learned that she had been hospitalized and had passed away at the age of 84. I also heard that before entering the hospital, she had taken her model and smashed it to pieces.

d00319_ph03-680x453Sasaki Yasuko toward the end of her life, at work on a model of her abandoned home in Namie.

I had many other opportunities to talk to people whose homes are in areas “closed to habitation indefinitely.” Several of them told me that when they had tried to tidy up one of their short visits home, they found their houses in a state of chaos as a result of intrusions by boars and other wild animals. The residents asked the authorities to do something about it, saying, “Can’t you catch the boars, or at least hire someone to stop them from getting into our houses?” But no business could be persuaded to take the project on as everyone was too afraid of the high radiation levels.

Faced with difficulties and indignities like this, people’s eagerness to return home slowly withered. They say that the radiation tore everything up by the roots—history, culture, community—and they wonder if any amount of compensation can make up for such a loss. Robbed of their local heritage, many residents of affected areas continue to lament the cultural implications of the disaster.

The Need to Support Both Returnees and Evacuees

The authorities imagine a simplistic scenario where lifting the evacuation orders results in everyone returning home and living happily ever after. But life is not so simple, and this storyline does not include solutions for problems like those outlined above. As well as working to restore and rebuild the physical infrastructure in the evacuated towns and villages, the authorities need to work with residents to develop programs that will help them get their lives back on track. These programs need to have realistic outlooks of the future and must consider the hopes of the residents themselves.

From the initial days after the disaster, the message from the national government and Tokyo Electric Power Company, the operator of the Daiichi plant, has been: “Leave this to us.” This has permeated their attitude in establishing support efforts for evacuees in temporary housing, setting radiation safety standards, cleanup work, compensation negotiations, livelihood support, and reconstruction plans. Everything has been handled in an ad hoc fashion, leading to misunderstanding and anxiety and opening gaps between the authorities and those they are supposedly trying to help. For residents, all these actions are closely connected. There is still no process for building consensus and bridging the gulf that has formed between the authorities and the residents who should be playing a leading role in rebuilding their communities. It is in this context that the evacuation orders were lifted.

The authorities should make it a priority to draw up a less simplistic scenario that better reflects the reality on the ground. There must be a multiple-track plan balancing programs to rebuild communities and support returnees’ lives back home with measures that provide help to evacuees who choose to remain where they are. One idea worth considering would be a program that allowed evacuees to divide their lives between two areas for a bridging period, giving them time to rebuild their hometowns while remaining in temporary housing. One way this could be accomplished is to provide residences where evacuees could live on a part-time basis as they work to rebuild their communities and repair their damaged and neglected homes.

(Originally published in Japanese on May 9, 2017. Banner photo: A photographer snaps photos of somei-yoshino cherries in Tomioka, Fukushima Prefecture, on April 12, 2017. Most of the 2.2-kilometer stretch of cherry trees is barricaded off inside an evacuation area. Since this spring, the first 300 meters of the road have been opened to the public during the daytime. The district is now designated an “area closed to habitation provisionally.” © Jiji.)

http://www.nippon.com/en/currents/d00319/

 

May 24, 2017 Posted by | Fukushima 2017 | , , , , | Leave a comment

Lifting Fukushima evacuation orders

28 feb 2017

The lifting of evacuation orders in four municipalities around Tokyo Electric Power Co. Holding’s Fukushima No. 1 nuclear power plant over the weekend does not normalize the lives of former residents forced out of their hometowns due to the radioactive fallout from the March 2011 triple meltdowns at the plant. The government needs to keep up support for the residents — both those returning to their hometowns and those choosing to stay out for various reasons — to help them rebuild their lives, which were shattered by the nuclear disaster six years ago.

Since 2014, the government has been moving to lift its evacuation orders issued to areas once designated no-go zones around the Tepco plant where the level of radioactive pollution is deemed to have declined to acceptable levels through decontamination efforts. The lifting of the evacuation orders in parts of the Fukushima towns of Namie, Tomioka and Kawamata and Iitate village on Friday and Saturday paves the way for the return of about 32,000 former residents. The total areas designated as no-go zones have now been reduced to roughly one-third of their peak — although areas that used to be home to 24,000 people will continue to be off-limits to former residents due to still high radiation levels.

Last month, Prime Minister Shinzo Abe said reconstruction from the March 11, 2011, disasters — the Great East Japan Earthquake and tsunami and the nuclear fiasco — is making steady progress and is “entering a new stage” with the lifting of evacuation orders to the former no-go zones around the Tepco plant. Also at the end of March, public housing assistance was terminated for people who had voluntarily evacuated from areas located outside the no-go zones out of fear of radioactive pollution.

However, government decisions alone will not return evacuees’ lives to a state of normalcy. In areas where evacuation orders have earlier been lifted since 2014, only 13 percent of the former residents have returned to their hometowns. In Namie and Tomioka, where some parts of the towns will continue to remain off-limits due to high radiation levels, more than 50 percent of former residents told a Reconstruction Agency survey last year that they have no plans to return in the future.

Some of the former residents cite continuing concerns over the effects of radioactive contamination, while others point to the slow recovery of infrastructure crucial to daily life such as medical services and shopping establishments in their hometowns. Other former residents have started life anew in the places to which they have evacuated.

The prospect is also bleak for businesses that used to operate in the areas. According to a survey by the association of Fukushima Prefecture chambers of commerce and industry, about half of the companies located in the no-go zones were unable as of last September to reopen their businesses as they lost their customers and business partners in the years since the 2011 disaster. Many of the busineses that have reopened after the evacuation orders were lifted said they have not been able to earn the same level fo profits as before the nuclear crisis.

Reconstruction from the March 2011 disasters continues to lag in Fukushima compared with the other devastated prefectures of Miyagi and Iwate, because of the additional woes caused by the Tepco plant disaster. Nearly 80,000 Fukushima residents remain displaced from their homes six years on — roughly half the peak figure of 165,000 but still accounting for a bulk of the national total of 123,000 as of February.

With the lifting of the evacuation orders, monthly payments of consolation money from Tepco to the residents of former no-go zones will be terminated in a year. Fukushima Prefecture’s housing aid, essentially funded by the national government, to more than 20,000 Fukushima people who voluntarily evacuated from their homes outside the no-go zones was cut off at the end of last month — although substitute assistance programs will be continued on a limited scope.

Officials say that decontamination and restoration of social infrastructure have progressed in the former no-go zones around the Tepco plant. However, administrative decisions such as the lifting of evacuation orders alone will not compel evacuees to return to their hometowns or rebuild their communities shattered by the nuclear disaster. The government must keep monitoring the real-life conditions of residents in affected areas and extend them the support they need, as well as continue to improve crucial infrastructure so more evacuees feel they can return home.

http://www.japantimes.co.jp/opinion/2017/04/03/editorials/lifting-fukushima-evacuation-orders/

April 3, 2017 Posted by | Fukushima 2017 | , , , , , | Leave a comment

Fukushima decontamination near-complete in evacuated areas, so they claim

When you hear the word “decontamination” think of the word “distribution.” Scrapping some contaminated top soil from here to move it there, and again and again ad infinitum.
 
Full decontamination is just impossible. 80 % of the Fukushima prefecture is forests and woods which are impossible to decontaminate, have therefore not been decontaminated, with loads of accumulated radionuclides there, which carried by the rain and the wind recontaminate any « decontaminated » area.
 
These 2.6 trillion yen ($23.56 billion) spent over the past five years have been spent totally in vain, they should have use that money to relocate properly all the evacuees from the evacuated zones and from other non evacuated hot spot zones, instead to force the evacuees to return to live in a everlasting radioactive environment, imposing them to live with an annual radiation dose up to 20 millisieverts, which is the international annual radiation maximum dose for nuclear plant workers, not for civilians, not women, children and babies.

 

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SIX YEARS AFTER: Fukushima decontamination near-complete in evacuated areas

Decontamination work in areas covered by the evacuation order from the 2011 Fukushima nuclear disaster is expected to conclude this month, paving the way for evacuees from the affected communities to return home.

With the project’s completion, the government’s focus will shift to the cleanup of heavily contaminated areas near the crippled Fukushima No. 1 nuclear power plant and infrastructure building.

The areas covered in the Environment Ministry’s decontamination project constitute those in 11 municipalities, including Okuma and Futaba, the two towns co-hosting the nuclear complex.

The decontamination project got under way there in fiscal 2012 to remove soil, fallen leaves and other materials contaminated by radioactive substances primarily in residential areas, roads, and rice paddies and fields.

But the areas collectively known as the difficult-to-return zone where annual radiation doses were estimated to exceed 50 millisieverts as of the end of 2011 and still estimated at more than 20 millisieverts five years after the disaster were excluded from the decontamination work in those 11 local governments.

The cleanup in nine municipalities has already been completed, while the project in the remaining two is expected to finish this month, according to the government.

The completion of the project comes after the Cabinet approved a policy to finish decontamination by the end of March 2017 at a meeting in March 2016.

The evacuation order for Okuma and Futaba will remain in place even though the cleanup project will soon be over.

But the government expects to lift the order for people from the remaining nine municipalities, except for residents from the difficult-to-return zone, by April 1.

That will make the total area remaining under the evacuation order 30 percent of the size six years ago.

According to the ministry, decontamination operations have been carried out in 99 local governments in and outside of Fukushima Prefecture, costing about 2.6 trillion yen ($23.56 billion) over the past five years.

Although the government initially covers the costs of decontamination, it sends the bill to Tokyo Electric Power Co., the plant’s operator.

Despite the cleanup project, many evacuees will likely remain anxious about radiation exposure when they return because forests and woods except for those close to residential areas have not been decontaminated.

The government envisages setting up hubs for rebuilding the difficult-to-return zone by carrying out an intensive cleanup to make the areas habitable by 2022.

http://www.asahi.com/ajw/articles/AJ201703270039.html

March 29, 2017 Posted by | Fukushima 2017 | , , , , , | Leave a comment

Visualizing nuclear radiation: Team images gamma rays to help decontaminate Fukushima

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A Kyoto University team has developed a new camera to visualize radioactive hotspots

Extraordinary decontamination efforts are underway in areas affected by the 2011 nuclear accidents in Japan. The creation of total radioactivity maps is essential for thorough cleanup, but the most common methods, according to Kyoto University’s Toru Tanimori, do not ‘see’ enough ground-level radiation.

“The best methods we have currently are labor intensive, and to measure surface radiation accurately,” he says, “complex analysis is needed.”

In their latest work published in Scientific Reports, Tanimori and his group explain how gamma-ray imaging spectroscopy is more versatile and robust, resulting in a clearer image.

“We constructed an Electron Tracking Compton Camera (ETCC) to detect nuclear gamma rays quantitatively. Typically this is used to study radiation from space, but we have shown that it can also measure contamination, such as at Fukushima.”

The imaging revealed what Tanimori calls “micro hot spots” around the Fukushima Daiichi Nuclear Power Plant, even in regions that had already been considered decontaminated. In fact, the cleaning in some regions appeared to be far less than what could be measured by other means.

Current methods for measuring gamma rays do not reliably pinpoint the source of the radiation. According to Tanimori, “radiation sources including distant galaxies can disrupt the measurements.”

The key to creating a clear image is taking a color image including the direction and energy of all gamma rays emitted in the vicinity.

“Quantitative imaging produces a surface radioactivity distribution that can be converted to show dosage on the ground,” says Tanimori. “The ETCC makes true images of the gamma rays based on proper geometrical optics.”

This distribution can then be used to relatively easily measure ground dosage levels, showing that most gamma rays scatter and spread in the air, putting decontamination efforts at risk.

“Our ETCC will make it easier to respond to nuclear emergencies,” continues Tanimori. “Using it, we can detect where and how radiation is being released. This will not only help decontamination, but also the eventual dismantling of nuclear reactors.”

https://phys.org/news/2017-03-visualizing-nuclear-team-images-gamma.html#jCp

March 23, 2017 Posted by | Fukushima 2017, Fukushima continuing | , , , , | Leave a comment

Fury sparked in Japan as companies found duping foreign refugees into decontamination work in Fukushima

TOKYO, March 17 (Xinhua)– “Such scams are a shame to Japan,” said a reporter from Tokyo Metropolitan Television Broadcasting Corp., referring to a recently-exposed scandal involving labor dispatch agencies duping foreign refugees into doing decontamination work in Fukushima.

Various local media have exposed recently that some Japanese companies have swindled foreign refugees into doing decontamination work in Fukushima with empty promises that such work might help extend their visas to stay in Japan.

Fifty-year-old Hosein Moni and 42-year-old Hosein Deroaru from Bangladesh were both caught in such a scam, according to a recent report by the Chunichi Shimbun, one of the largest newspapers in Japan.

The two came to Japan in 2013 seeking to be recognized as political refugees. In Japan, foreigners are given temporary permission to stay for up to six months at one application before they are recognized as refugees and given status as residents.

According to government data, the number of refugees actually afforded recognition as refugees in Japan is disproportionately low among developed nations, while the numbers of those applying for refugee status has been rapidly increasing in recent years in Japan.

The government received some 5,000 such applications in 2014, but only 11 were granted refugee status, according to the data.

Moni and Deroaru were told by a so-called labor dispatch agency in Nagoya that they could do decontamination work in exchange for an extension of their visa.

The two, knowing little Japanese and trying to seize every opportunity they could, accepted the job and worked in Fukushima for three months in 2015.

But when they finished their work and went to the local immigration bureau to extend their stay, they were told by officers there that they knew nothing about such a policy.

They later found out that the construction company that had hired them had changed its company name, and its Fukushima branch had closed.

Half of the 20 workers that they had worked with in Fukushima were foreigners, many of whom had been applying for refugee status in Japan, the pair later recalled.

Their work mainly involved clearing away contaminated soil with spades, and while they were at work might well have been affected by high levels of radiation. “The radiation detectors we brought with us kept sounding alarms, which was rather scary,” they were quoted as saying.

The incident, after been exposed by local media, also caused a splash on social network sites. Many Japanese netizens felt indignant that such scams were happening in their homeland.

“Earthquake, nuclear plant, poverty… there are always some people trying to cheat or hurt other people here just for money,” remarked Kojima on Twitter.

“Why has my home country degenerated to such a low place,” said “Hootoo,” another netizen here.

They also called on the Japanese government to strengthen regulations on the Japanese companies to prevent such scams from happening.

Japan’s immigration bureau, for its part, said that the incident was with “vile nature”, and it would conduct investigations soon.

In fact, however, for a long time, due to lack of manpower, many of Japan’s “three-K” (kiken, kitanai, kitsui, which means dangerous, dirty and tiring) jobs have been done by foreign immigrants, as the Japanese are reluctant to do such work.

“As Japanese people don’t want to do the work, it has to be done by foreigners,” said Ishikawa, a Brazil-born Japanese who was in charge of coordinating foreign workers in decommissioning work linked to the Fukushima Daiichi Nuclear Plant, according to a report published by the Mainichi Shimbun last year.

Most of the foreign workers could hardly speak Japanese. As anti-radiation brochures provided by the plant’s operator, Tokyo Electric Power Company Holdings Inc. (TEPCO), were only available in Japanese or English, many of the workers could not understand it, Ishikawa was quoted as saying.

The foreign workers, to some extent, saved the contractors and TEPCO by pushing forward the decommissioning work of the nuclear plant, remarked the report.

A magnitude-9.0 earthquake in 2011 triggered a massive tsunami which destroyed the emergency power and then the cooling system of the Fukushima Daiichi nuclear power plant, and caused a serious nuclear disaster, forcing some 300,000 people to evacuate.

The operator of the crippled Fukushima Daiichi nuclear plant, has said it plans to decommission the crippled reactors in about four decades.

However, the difficult tasks such as processing contaminated water, cooling the reactors and removing nuclear fuel and debris, continue to pose serious challenges to the power company as well as the government.

http://news.xinhuanet.com/english/2017-03/17/c_136137295.htm

March 20, 2017 Posted by | Fukushima 2017 | , , | Leave a comment

The illusion of normality at Fukushima

Six years after it suffered a nuclear meltdown, Fukushima appears to have returned to a semblance of normalcy. But there is still a long way to go in terms of cleaning up the site. Martin Fritz reports.

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A filter mask covering the mouth and nose, a headscarf, a helmet, gloves and two layers of socks – they constitute the protective gear that must be worn by any ordinary visitor to the Fukushima nuclear power station. 

Only a few workers now have to wear face masks and hazmat suits, since most of the ground at the site has been sealed with concrete.

“The radiation is now as low as in the Tokyo’s Ginza shopping district,” Tokyo Electric Power Co. (TEPCO) manager Yuichi Okamura assured a group of journalists during their recent visit to the plant.

But the illusion of normality evaporates as soon as the visitors get off their bus and stand within sight of the reactors, with dosimeters indicating radiation levels of around 160 to 170 microsieverts per hour – nearly 2,000 times above what is considered safe.

“We cannot stay here for long,” warns Okamura.

On the surface, it appears that much has changed in Fukushima since the disaster struck six years ago. The clean-up work has evidently made progress.

But the sight of skeletal steel frames, torn walls and broken pipes immediately reminds one of the 17-meter-high tsunami which flooded the facility six years ago and brought its reactors to a complete standstill.

It’s expected to take 30 to 40 years to completely clean up the Fukushima Daiichi plant, which was hit by the world’s worst nuclear disaster since Chernobyl following a magnitude-9 earthquake and the subsequent tsunami. The operation is likely to carry a hefty price tag, with Japanese officials recently estimating it to cost around $189 billion in total.

Today, with 6,000 workers employed, the nuclear power plant is Japan’s largest and most expensive construction site – and it will remain so for decades. “We’re struggling with four problems,” says TEPCO manager Okamura: “Reducing the radiation at the site, stopping the influx of groundwater, retrieving the spent fuel rods and removing the molten nuclear fuel.”

Black lumps in the reactor containment

Progress in these areas, however, is slow. For instance, workers are erecting scaffolding around the collapsed roof of reactor No 1, but it will likely take four more years for the debris there to be cleared away. Only then can the almost 400 old fuel rods be retrieved from the reactor’s holding basin.

In the adjacent reactor No 2, the blue exterior still remains intact. Workers in hazmat suits can be seen walking on a new metal platform halfway up the reactor building.  But behind the wall lies a nuclear nightmare. A robot sent into the reactor in January found highly dangerous black lumps of leaked fuel on a platform in the outer reactor containment.

“There is now fatally high radiation in that part,” says Okamura.

The engineer quickly turns to reactor No 3, where the progress is more obvious. A hydrogen explosion had turned the reactor’s roof into a tangle of bent metal. It took years of work to dismantle this steel scrap and remove the rubble. “Now we’re building a new roof with an integrated hoisting crane,” says Okamura proudly.

“From next year, we would finally be able to close in on the nearly 600 burnt fuel rods,” he noted. But unlike in reactor No 4, the clean-up must be undertaken remotely as the radiation is so strong that people can only stay there for a few minutes. As a result, the construction of the lifting device has already been delayed by several years. 

Unclear conditions

The situation at the reactors raises doubts about the optimism shared by Japanese officials with regard to the orderly decommissioning of the plant. At the next stop, Okamura shows the control center of the underground ice wall that was built to prevent groundwater from leaking into the reactor basements and mixing with radioactive coolant water.

Since its construction, it has managed to reduce the amount of groundwater flowing into the reactor basements. But five sections of the wall have had to be kept open to prevent water inside the reactor basements from rising and flowing out too rapidly.

Despite all these adversities, the Japanese government and TEPCO are planning to decide as early as this summer how to remove the molten nuclear fuel from the reactors.

Even Shunji Uchida, the Fukushima Daiichi plant manager, couldn’t hide his skepticism from the visiting journalists. “Robots and cameras have already provided us with valuable pictures,” says Uchida, adding: “But it is still unclear what is really going on inside.”

http://www.dw.com/en/the-illusion-of-normality-at-fukushima/a-37885120

March 15, 2017 Posted by | Fukushima 2017 | , , , | Leave a comment

Decontamination work in Fukushima Pref. far from finished business

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FUKUSHIMA — With six years having passed since the onset of the nuclear disaster at Tokyo Electric Power Co. (TEPCO)’s Fukushima No. 1 nuclear plant, the government’s decontamination plan in this prefecture is fast approaching the end of its first phase at the end of March.
As a consequence of the decontamination project — and the fact that radioactive material decays over time — radiation levels in Fukushima Prefecture have declined to some extent.

However, in certain areas of the prefecture, radiation levels continue to be high, and the issue of what to do with decontamination waste still needs to be tackled. The government does plan to carry out decontamination work in the neglected “difficult-to-return” evacuation zones in fiscal 2017, but local residents are skeptical that the end is near.

To date, the Environment Ministry has carried out decontamination work in 11 municipalities across the prefecture subject to evacuation orders. However, no decontamination has been done yet in the “difficult-to-return” zones. In other municipalities, where the radiation dose is 0.23 microsieverts per hour or higher, decontamination work has been performed by the relevant local government office.

Initially, the central government-led decontamination was supposed to finish in March 2014, but this was pushed back to March 2017, owing to delays related to makeshift storage sites for contaminated soil. The Environment Ministry plans to finish its decontamination work by the end of March 2017, after which it plans to move the contaminated soil to interim storage facilities.

In areas where the central government is in charge of decontamination, “follow-up” decontamination will also take place in the event that radiation levels do not drop enough, in the hope that residents will eventually be able to return home. Conversely, there will be no follow-up in cases where decontamination is being handled by a local authority, making local residents anxious.

Nevertheless, there are a few spots where follow-up decontamination has taken place in addition to the work in the 11 municipalities overseen by the government. There are nine such spots in total, and they are all in the city of Soma. The Soma Municipal Government initially intended to conduct decontamination in about 30 locations across the city, but this was eventually reduced to nine locations, owing to radiation level-related criteria for follow-up decontamination as instructed by the Environment Ministry.

A Soma Municipal Government representative stated, “Radiation levels are particularly high in forests here, and it is unknown what the future impact of this might be. I want to have a system set up whereby decontamination can be easily conducted again in the future, as necessary.” (By Hanayo Kuno, Science & Environment News Department, Kazuhisa Soneda, Fukushima Bureau, Makoto Ogawa, News Layout Center, and Yohei Kanno, Visual Group)

http://mainichi.jp/english/articles/20170311/p2a/00m/0na/027000c

March 15, 2017 Posted by | Fukushima 2017 | , | Leave a comment

Fukushima Radioactive Debris: 2 Bangladeshis tricked into cleanup job

Two Bangladeshi asylum seekers in Japan cleared up radioactive contamination from one of the world’s worst nuclear disasters on the false promise doing so would win them permission to stay in the country longer, media reported yesterday.

The Fukushima nuclear plant suffered multiple meltdowns after being hit by a tsunami triggered by a big earthquake on March 11, 2011. Companies decontaminating areas around the plant, which usually involves removing radioactive top soil, have struggled to find workers willing to do the job.

The two men, who arrived in Japan in 2013 saying they were escaping political persecution, said they were told by brokers and construction companies that their visas would be extended if they did decontamination work, the Chunichi newspaper reported.

“We believed the visa story because they said it’s a job Japanese people don’t want to do,” Chunichi quoted one of the men, Monir Hossain, as saying.

Reuters was not able to reach the two men.

The men did the decontamination work in Iitate village, about 50 km (30 miles) south of the plant, from January to March 2015, Chunichi said.

Japan maintains tight controls on the entry of foreign workers but asylum seekers are allowed to work while their applications are reviewed. Many have permits allowing them to stay and work that have to be renewed every six months.

Mitsushi Uragami, a justice ministry official who oversees refugee recognition, said there were no residence permits on offer for people doing decontamination.

“The length of asylum seekers’ residence permits and them doing decontamination work are unrelated. If anyone is giving inaccurate explanations about this, it’s problematic,” Uragami told Reuters.

The department was investigating the case, he said.

Takuya Nomoto, an environment ministry official overseeing decontamination, said the Chunichi report did not give the names of the companies or labour brokers involved, and as such the ministry was not able to confirm it.

“The ministry expects all contractors involved in decontamination to comply with the law,” he said.

The Fukushima Labour Bureau said this month more than half of the 1,020 companies involved in decontamination violated labour and safety laws last year.

Reuters revealed in 2013 that homeless men were put to work clearing radioactive soil and debris in Fukushima for less than the minimum wage.

Reuters also found the clean-up depended on a little scrutinised network of subcontractors – many of them inexperienced with nuclear work and some with ties to organised crime.

http://www.thedailystar.net/backpage/fukushima-nuke-debris-2-bangladeshis-tricked-cleanup-job-1373098

March 10, 2017 Posted by | Fukushima 2017 | , , | 1 Comment

Fukushima laden with piles of radioactive soil that can’t be moved into storage

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Masaaki Sakai faces his home, which remains standing in the Fukushima Prefecture village of Iitate, on Feb. 15, 2017. In some spots the level of radiation exceeds 1 microsievert per hour, and Sakai has decided to have the structure demolished. (Mainichi)

FUKUSHIMA — As decontamination planned in the wake of the Fukushima nuclear disaster nears an end this fiscal year, focus is shifting to the massive amount of radioactively tainted soil that has piled up during decontamination work. But the construction of interim storage facilities that are supposed to hold this waste within Fukushima Prefecture for up to 30 years before it is finally disposed of has been delayed.

As of the end of February, only about 20 percent of the 16,000 hectares earmarked for interim storage has been acquired through land contracts. It thus appears inevitable that provisional and onsite storage that was only supposed to last for three years will drag on for a long time. The situation casts doubt on the prospects of finding a final resting place for the waste outside Fukushima Prefecture within 30 years.

Six years after the disaster at the Fukushima No. 1 Nuclear Power Plant, the Fukushima Prefecture village of Iitate remains completely evacuated. With the exception of a so-called “difficult to return zone” in the south of the village, the central government plans to lift the evacuation order upon completion of decontamination work at the end of March.

Masaaki Sakai, 39, who now resides in the city of Fukushima, has a home in the Komiya district of Iitate, right next to the village’s “difficult to return” zone. A dosimeter during a recent visit showed the area around the 60-year-old, snow-covered farmhouse stood at more than 1 microsievert per hour. The level equates to more than 5 millisieverts per year — five times the 1 millisievert exposure limit for a regular person.

Sakai points out that level of radiation is sometimes higher. “Today the level is low because there is snow,” he says. In the near future he plans to have his home pulled down, as the deadline for applying for the government to cover the cost of doing so is approaching.

“Even if I want to return to Iitate, if they say, ‘Decide now’ then the only thing I can do is decide not to return,” he murmurs.

One of the reasons behind Sakai’s decision not to return is the radioactively contaminated soil that remains in the village. Walking around the village, one can see mounds with green covers over them, concealing flexible containers that hold contaminated soil. According to the Ministry of the Environment, the amount of tainted soil stored temporarily like this, as of the end of January, totals roughly 2.4 million cubic meters for the village of Iitate alone, or enough to fill the Tokyo Dome baseball stadium twice.

So far, however, only about 6,000 cubic meters of soil have been transported to interim storage facilities, while the amount due to be transported next fiscal year stands at about 22,000 cubic meters. At this pace, under a simple calculation, it would take over 100 years to transport all of the waste to interim storage facilities.

“There’s no way I’m going to live surrounded by mountains of contaminated soil,” Sakai says.

Makeshift storage of radioactive soil in areas that have not been evacuated also looks likely to be prolonged. In areas that aren’t under evacuation orders, it is the local municipalities, not the government, that handle the decontamination work. In five municipalities including the cities of Fukushima and Koriyama, the contaminated soil left after decontamination work is mostly buried onsite.

Six years have passed since the outbreak of the Fukushima nuclear disaster, and in many cases people have asked for the waste to be removed so they can extend or rebuild their homes or resume farming activities, but the delay in building interim storage facilities means the only solution for the time being is to change the spot where the waste is buried.

It costs several hundred thousand yen to rebury waste in a single case, but until now the Ministry of the Environment has not allowed funds to be used for the reburying of such waste, on the premise that it is supposed to be stored for only a short period of time. Local bodies have still billed the central government by quietly tacking on the cost to the fee for other decontamination work, but this will become more difficult to do next fiscal year when decontamination work is completed.

In January, the Ministry of the Environment adopted a new policy of granting funds for the reburying of waste if the original location hindered the construction of a new home. An official at one local body commented that the move was a relief, but there are outstanding issues. As a rule, the government collectively bills Tokyo Electric Power Co. (TEPCO), operator of the Fukushima No. 1 Nuclear Power Plant, for the cost of decontamination work, but it is unclear whether TEPCO has to pay for the reburial of tainted soil.

Separately, decontamination work has also been carried out in prefectures besides Fukushima — extending to 57 municipalities in seven prefectures, including Tochigi and Miyagi. The amount of contaminated soil in these cases stands at about 320,000 cubic meters. In about 95 percent of cases, the soil is stored onsite. But since interim storage facilities are designed for contaminated soil from Fukushima Prefecture alone, it has not even been decided what should be done with this waste.

http://mainichi.jp/english/articles/20170309/p2a/00m/0na/019000c

March 10, 2017 Posted by | Fukushima 2017 | , , , | Leave a comment

SIX YEARS AFTER: Poll: At least 20 years to regain lifestyle, half of Fukushima says

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Decontamination work is conducted on March 2 in Namie, Fukushima Prefecture, which will no longer be designated an evacuation zone on March 31.

 

Half of Fukushima Prefecture residents believe it will take at least another 20 years for them to return to the lives they enjoyed before the 3/11 disaster, according to a new poll.

The Asahi Shimbun and Fukushima Broadcasting Co. contacted prefectural residents on Feb. 25-26 to ask about life after the triple nuclear meltdown crisis following the 2011 Great East Japan Earthquake and tsunami. It was the seventh in the annual series of polls on the issue.

In the survey, 50 percent of respondents said “more than 20 years” when asked their outlook on the timescale to restore their previous lifestyle. Twenty-one percent said “about 20 years,” followed by 16 percent who thought “about 10 years,” and 7 percent who responded “about five years.”

In the 2013 poll, those who thought it would take more than two decades for them to regain their pre-disaster life totaled 60 percent. The numbers cannot simply be cross-referenced since 18 and 19 years olds have been included in the latest survey for the first time, but while the results suggest some improvement, they also paint a picture of many residents of the prefecture still unable to have an optimistic outlook on their future.

Thirty percent of respondents of the latest survey said there are times they feel discriminated against for being Fukushima Prefecture residents.

The central government plans to cover part of the costs on the Fukushima nuclear crisis that is estimated to rise to 21.5 trillion yen ($188 billion) by including the expenses in electricity rates on regular households.

It is a plan that has been criticized to be nothing more than a scheme to bail out Tokyo Electric Power Co., operator of the Fukushima No. 1 nuclear power plant, and 76 percent of respondents said they could not accept such a measure.

With the evacuation order for the town of Tomioka scheduled to be lifted on April 1, most residents of the prefecture who were displaced from their homes due to the nuclear disaster will be able to go back, excluding those who lived in areas still designated as “difficult-to-return zones.”

But opinions over the issue varied among respondents, suggesting skepticism over decontamination work and concerns over radiation still linger among many residents.

When asked about the timing of lifting the evacuation order, the most popular answer, from 40 percent, was that it was an appropriate decision. However, 19 percent said it was “too soon,” while 22 percent said the order “should not be lifted in the first place.” Nine percent said it was “too late.”

Respondents were also divided over their evaluation of decontamination work in the prefecture conducted by the central and local governments.

Those who applauded the effort, which comprised the 3 percent who “highly” praised it and the 48 percent who “somewhat” did, was at just over half. But an almost equal amount of respondents, 46 percent, expressed criticism, with 39 percent saying they “did not really” think enough was being done and 7 percent saying they were not at all satisfied.

When asked whether they had any concerns of the effects of radiation on themselves or their family, most residents, at 63 percent, said yes. This comprised the 19 percent who said they were very concerned and the 44 percent who responded they were worried to some extent.

Those who were more critical of the decontamination efforts, as well as respondents who expressed concern over the effects of radiation, tended to reply that the evacuation order “should not be lifted in the first place.”

Regarding “difficult-to-return zones,” the central government plans to concentrate their decontamination work on specific areas to allow residents to live there.

Respondents were divided over this decision as well, with 43 percent for and 42 percent against.

However, when asked about how the central government and TEPCO were handling the buildup of contaminated groundwater at the crippled nuclear plant, the majority of respondents expressed criticism. A total of 71 percent said they were dissatisfied, compared with the 14 percent who thought enough was being done.

The poll targeted eligible voters aged 18 or older living in the prefecture. Valid responses were received from 934 individuals out of the 1,739 randomly generated landline numbers contacted, or 54 percent.

http://www.asahi.com/ajw/articles/AJ201703030048.html

March 4, 2017 Posted by | Fukushima 2017 | , , , | Leave a comment

Bribery scandal over Fukushima decontamination

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Bribery scandal over Fukushima decontamination

Police in Japan have arrested an environment ministry official for alleged bribery over decontamination work following the Fukushima Daiichi nuclear disaster.

Fifty-six-year-old Yuji Suzuki, who works at a ministry sub-branch in the prefecture, is suspected of helping a construction company land such work in exchange for wining and dining.

The work is aimed at removing radioactive material from houses, soil and woods near the crippled plant.

Fukushima and Tokyo police found that Suzuki was provided entertainment at hostess bars and a free trip worth about 1,750 US dollars from the construction firm in Toyama Prefecture.

Police also arrested a former president of the firm, Mikio Kosugi over the suspected bribery. The 2 have reportedly admitted to the allegations.

Suzuki is among experts hired on a temporary basis by the ministry to deal with reconstruction work including cleaning up widespread fallout from the accident. Police say he was in charge of overseeing decontamination.

Environment Minister Koichi Yamamoto on Thursday expressed regret, saying the scandal could undermine Fukushima people’s trust in the cleanup effort.

He said his ministry will try to win back public trust by tightening discipline and carrying out work properly.

https://www3.nhk.or.jp/nhkworld/en/news/20170302_30/

Bureaucrat held for allegedly taking bribe for Fukushima cleanup work

TOKYO (Kyodo) — Police arrested an Environment Ministry employee Thursday on suspicion of receiving a bribe in exchange for favorable treatment in the allocation of cleanup work in Fukushima Prefecture following the 2011 nuclear disaster.

The police alleged that Yuji Suzuki, 56, who handles radiation decontamination work at a local branch of the ministry, was offered nightclub entertainment several times over a period between 2015 and 2016 by a former company manager, the police said.

The police also arrested Mikio Kosugi, 63, for allegedly wining and dining Suzuki in hopes of getting the public servant to give his Toyama Prefecture company work to remove radioactive materials from near the crippled Fukushima Daiichi plant, the police said.

Both Suzuki and Kosugi admitted the allegation, according to police. Sources close to the matter said the estimated value of the inducements Suzuki received is several hundred thousand yen.

The allegation surfaced as the Ministry of Economy, Trade and Industry has estimated the cost of decontamination work, including soil and tree removals, will surge to 4 trillion yen ($35 billion) from an earlier projection of 2.5 trillion yen.

http://mainichi.jp/english/articles/20170302/p2g/00m/0dm/085000c

March 2, 2017 Posted by | Fukushima 2017 | , , | Leave a comment

Doped carbon could partially treat contaminated water from Fukushima Daiichi removing nearly 93 percent of cesium and 92 percent of strontium in a single pass

Nothing new here. There are lots of ways of pulling radionuclides out of water : activated carbon, ion exchange, chemical affinity, sunflowers (phytoremediation). But still can’t deal with tritium. All costs money, and results in just shifting the contamination to a different material. Radionuclides cannot be simply destroyed, they can only be shifted from one location/ source to another.

 

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Doped carbon could treat water from Fukushima

US and Russian scientists have discovered a new way to remove radioactivity from water, which could be used to treat contaminated water at Japan’s Fukushima nuclear plant.

The researchers, from Rice University and Kazan Federal University, used oxidatively modified carbon (OMC) material to remove caesium and strontium from samples of water. Published in the journal Carbon, their work details how over 90 per cent of the radioactive elements were extracted using OMC column filtration.

Just passing contaminated water through OMC filters will extract the radioactive elements and permit safe discharge to the ocean,” said Rice chemist James Tour, who led the project with Ayrat Dimiev, a former postdoctoral researcher in his lab and fuknow a research professor at Kazan Federal University. “This could be a major advance for the cleanup effort at Fukushima.”

According to Tour, OMC makes good use of the porous nature of two specific sources of carbon. One is an inexpensive, coke-derived powder known as C-seal F, used by the oil industry as an additive to drilling fluids. The other is a naturally occurring, carbon-heavy mineral called shungite, which is found mainly in Russia.

The team found that the two types of OMC were efficient at extracting cesium, which has been the hardest element to remove from radioactive water stored at Fukushima. The OMC was also much easier and less expensive than previously used filtration materials such as graphene oxide.

We know we can use graphene oxide to trap the light radioactive elements of relevance to the Fukushima cleanup, namely caesium and strontium,” Tour said. “We learned we can move from graphene oxide, which remains more expensive and harder to make, to really cheap oxidised coke and related carbons to trap these elements.”

As well as being cheaper than other materials, OMC has the added advantage of not having to be stored alongside the radioactive waste it is used to treat.

Carbon that has captured the elements can be burned in a nuclear incinerator, leaving only a very small amount of radioactive ash that’s much easier to store,” said Tour.

https://www.theengineer.co.uk/doped-carbon-could-treat-fukushima-water/

Treated carbon pulls radioactive elements from water

Researchers at Rice, Kazan universities develop unique sorbents, target Fukushima accident site 

Researchers at Rice University and Kazan Federal University in Russia have found a way to extract radioactivity from water and said their discovery could help purify the hundreds of millions of gallons of contaminated water stored after the Fukushima nuclear plant accident.

They reported that their oxidatively modified carbon (OMC) material is inexpensive and highly efficient at absorbing radioactive metal cations, including cesium and strontium, toxic elements released into the environment when the Fukushima plant melted down after an earthquake and tsunami in March 2011.

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C-seal F, a source used to synthesize oxidatively modified carbon, is seen magnified 20 times by a scanning electron microscope. The material is highly effective at removing radionuclides from water, according to researchers at Rice University and Kazan Federal University. Click on image for a larger version. Courtesy of Kazan Federal University

OMC can easily trap common radioactive elements found in water floods from oil extraction, such as uranium, thorium and radium, said Rice chemist James Tour, who led the project with Ayrat Dimiev, a former postdoctoral researcher in his lab and now a research professor at Kazan Federal University.

The material makes good use of the porous nature of two specific sources of carbon, Tour said. One is an inexpensive, coke-derived powder known as C-seal F, used by the oil industry as an additive to drilling fluids. The other is a naturally occurring, carbon-heavy mineral called shungite found mainly in Russia.

The results appear this month in Carbon.

Tour and researchers at Lomonosov Moscow State University had already demonstrated a method to remove radionuclides from water using graphene oxide as a sorbent, as reported in Solvent Extraction and Ion Exchange late last year, but the new research suggests OMC is easier and far less expensive to process.

Treating the carbon particles with oxidizing chemicals increased their surface areas and “decorated” them with the oxygen molecules needed to adsorb the toxic metals. The particles were between 10 and 80 microns wide.

While graphene oxide excelled at removing strontium, Tour said, the two types of OMC were better at extracting cesium, which he said has been the hardest element to remove from water stored at Fukushima. The OMC was also much easier and less expensive to synthesize and to use in a standard filtration system, he said.

We know we can use graphene oxide to trap the light radioactive elements of relevance to the Fukushima cleanup, namely cesium and strontium,” Tour said. “But in the second study, we learned we can move from graphene oxide, which remains more expensive and harder to make, to really cheap oxidized coke and related carbons to trap these elements.”

While other materials used for remediation of radioactive waste need to be stored with the waste they capture, carbon presents a distinct advantage, he said. “Carbon that has captured the elements can be burned in a nuclear incinerator, leaving only a very small amount of radioactive ash that’s much easier to store,” Tour said.

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C-seal F, a carbon source, magnified 200 times reveals its high surface area of 12.5 square meters per grams. Processing it into oxidatively modified carbon raises its surface area to 16.9 square meters per gram while enhancing its ability to remove radioactive cesium and strontium from water, according to researchers at Rice University and Kazan Federal University. Click on image for a larger version. Courtesy of Kazan Federal University

Just passing contaminated water through OMC filters will extract the radioactive elements and permit safe discharge to the ocean,” he said. “This could be a major advance for the cleanup effort at Fukushima.”

The two flavors of OMC particles – one from coke-derived carbon and the other from shungite — look like balls of crumpled paper, or roses with highly irregular petals. The researchers tested them by mixing the sorbents with contaminated water as well as through column filtration, a standard process in which fluid is pumped or pulled by gravity through a filter to remove contaminants.

In the mixing test, the labs dispersed nonradioactive isotopes of strontium and cesium in spring water, added OMC and stirred for two hours. After filtering out the sorbent, they measured the particles left in the water.

OMC1 (from coke) proved best at removing both cesium and strontium from contaminated water, getting significantly better as the sorbent was increased. A maximum 800 milligrams of OMC1 removed about 83 percent of cesium and 68 percent of strontium from 100 milliliters of water, they reported.

OMC2 (from shungite) in the same concentrations adsorbed 70 percent of cesium and 47 percent of strontium.

The researchers were surprised to see that plain shungite particles extracted almost as much cesium as its oxidized counterpart. “Interestingly, plain shungite was used by local people for water purification from ancient times,” Dimiev said. “But we have increased its efficiency many times, as well as revealed the factors behind its effectiveness.”

In column filtration tests, which involved flowing 1,400 milliliters of contaminated water through an OMC filter in 100-milliliter amounts, the filter removed nearly 93 percent of cesium and 92 percent of strontium in a single pass. The researchers were able to contain and isolate contaminants trapped in the filter material.

Co-authors of the paper are Artur Khannanov, Vadim Nekljudov, Bulat Gareev and Airat Kiiamov, all of Kazan Federal University. Tour is the T.T. and W.F. Chao Chair in Chemistry as well as a professor of computer science and of materials science and nanoengineering at Rice. The Russian Government Program of Competitive Growth of Kazan Federal University supported the research.

http://news.rice.edu/2017/01/19/treated-carbon-pulls-radioactive-elements-from-water-2/#sthash.ha7SYWlq.dpuf

January 20, 2017 Posted by | Fukushima 2017 | , , , | Leave a comment

Fukushima Trucks Spreading Unmeasurable Amount of Radiation

In Yamada, Futaba District, Fukushima, trucks carrying waste after decontamination work, go by spreading unmeasurable amount of radiation.

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The Geiger counter hits 9.99 microSv/h which is its limit!

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Recovery effort? Is n’t it better to relocate the entire residents elsewhere safe? In Japan, there are many villages and small towns where they suffer with depopulation.

What they do now is just to keep feeding big contractors, not helping affected people…..

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Source: Oz Yo

 

December 29, 2016 Posted by | Fukushima 2016 | , , , , | 1 Comment