Ice wall at Fukushima plant switched on, but will it work?

Advertisements

Tepco starts freezing soil around Fukushima plant reactors

n-icewall-a-20160401-870x588

 

Tokyo Electric Power Co. said Thursday it has started freezing soil around damaged nuclear reactor buildings at the disaster-hit Fukushima plant, aiming to reduce the flow of groundwater into the highly contaminated facilities.

The Nuclear Regulation Authority on Wednesday gave Tepco permission to create a coolant-filled ice wall and start freezing soil on the east sea-facing side of the plant followed by 95 percent of the west side facing the mountains.

The work is expected to take more than three months to complete.

The plant was crippled by a massive earthquake and tsunami in March 2011.

In June 2014, Tepco installing equipment needed to establish the ice wall around the No. 1 to No. 4 reactors.

The work was completed in February, with the government funding some ¥35 billion ($309 million) of the project.

The utility plans to seek permission to extend the wall to cover the entire west side as well as the south and north sides of the plant after collecting data.

The 1.5-kilometer-long and 30-meter-deep wall is designed to stem a massive flow of groundwater from entering the basements of the reactor buildings and mixing with leaked toxic water.

The complete freezing is expected to take eight months if all goes smoothly.

Chief Cabinet Secretary Yoshihide Suga said the government “hopes the ice wall will stem the flow of groundwater into the facilities at an early date.”

Tepco and the government initially aimed to complete freezing the entire wall by the end of fiscal 2015, but the schedule was delayed due to prolonged discussions on safety measures.

The wall is expected to reduce the amount of groundwater flowing into the facilities every day to about 50 tons from more than 100 tons currently.

Still, the effectiveness of the ice wall, which would be the world’s largest ground freezing project, remains unclear.

The NRA warned earlier that if the groundwater level within the wall is reduced excessively by stemming the flow from outside, highly contaminated water within the buildings could seep out.

Tepco said it will stop the freezing work or inject water into wells around the reactor buildings if the groundwater level inside the wall is likely to become too low.

http://www.japantimes.co.jp/news/2016/03/31/national/tepco-starts-freezing-soil-around-fukushima-plant-reactors/#.Vv03EvKCjIW

Increased Strontium in Sardines since Fukushima Accident?

fish_1024x1024

 

Dogs fed sardines show high Strontium levels

by Dr. Peter Dobias, DVM

Why you might want to cut out small fish from your dog’s diet

I have had two dog patients with severely elevated levels of the element strontium. The interesting part is that these two dogs were fed a high amount of sardines and I highly suspect that strontium is coming from this source.

Strontium acts in the body the same way as calcium and deposits in bones. Sardines and other small fish are eaten whole with the bones and that is why they are more likely a source of this toxic element.

The reason why I am concerned is that the radioactive isotope strontium 90 is a toxic carcinogen and it has been released in Japan’s Fukushima disaster.

Here is an example of the results:

 

png

 

As a veterinarian, I source from almost three decades of experience, but still I like to see the proof. Hair testing for minerals and toxic elements has been really helpful because it is highly accurate and shows what is happening in different groups of dogs.

In the course of many years of testing, I have learned that dogs who eat fish-based foods have elevated mercury levels and sardines appear to be the cause of increased strontium. Since the Fukushima nuclear accident strontium is continuously being released into the oceans and not much is being done to inform the general public.

Sadly, I have noticed that dogs who have epilepsy have higher than average levels of strontium and mercury, which made me recommend against feeding fish and sardines to dogs, despite their nutritional benefits. Fish is not what it used to be.

http://peterdobias.com/blogs/blog/11014105-dogs-fed-sardines-show-high-strontium-levels

http://peterdobias.com/blogs/blog/113943301-how-to-avoid-foods-high-in-arsenic-and-keep-your-dog-healthy?utm_source=facebook&utm_medium=cpc&utm_campaign=Content

Fukushima Daiichi is not Tepco’s first accident

Fukushima is not Tepco’s first big accident. Fukushima was not their first Prom. They had practice only 4 years earlier. And guess what? Even back then Tepco misrepresented the amount that leaked into the ocean.

 

KKNPP

Chuetsu Earthquake

The Kashiwazaki-Kariwa Nuclear Power Plant (KKNPP) in Japan’s Niigata Prefecture can generate more power than any other power plant in the world—when it’s running. Since it became fully operational in 1997, one scandal after another has repeatedly forced it to shut down some or all of its seven reactors. Examples include concealing evidence of stress cracks and covering up the fact that the plant was built near fault lines.

That last bit came to light after the Chuetsu earthquake occurred on July 16, 2007. The magnitude 6.8 quake’s epicenter was only 24 kilometers (15 mi) offshore from the plant. The shaking was greater than the plant was designed to withstand; it was built before Japan updated their earthquake standards in 2006.

The ominous dry run for the later Fukushima Daiichi disaster damaged KKNPP and its reactors. The Tokyo Electric Power Company acknowledged that 1,200 liters of slightly radioactive water leaked into the sea and that dozens of barrels of low-level nuclear waste broke open during the quake. An exhaust pipe leaking radioactive iodine was also reported.

A report issued on July 19 by the Nuclear Information and Resource Service (NIRS) claimed the release of radioactive material to be much worse. According to NIRS, the water that leaked into the sea came from the irradiated fuel pool of one of the reactors. Another reactor had been releasing radioactive steam since the earthquake. The Associated Press also reported large amounts of damage to the plant’s infrastructure, with cracks and leaks seemingly everywhere. Liquefaction (formerly solid ground turning to mud) had occurred under parts of KKNPP.

10 Devastating Radiation Accidents They Never Tell You About

Osaka governor says Japan should debate need for nuclear weapons

OSAKA – Osaka Gov. Ichiro Matsui, the head of Osaka Ishin no Kai, has voiced support for a national debate on whether or not Japan should possess nuclear weapons.

“With the perfect right to collective self-defense, we should debate whether our troops can completely cover the needs of our own country,” Matsui said during an informal meeting with reporters Tuesday at Osaka’s prefectural office. “If we possess weapons, the ultimate weapon will become necessary.”

The call for a national debate follows comments made by U.S. Republican presidential candidate and front-runner Donald Trump in an interview with The New York Times where he said he would be open to both Japan and South Korea possessing nuclear weapons and the U.S. withdrawing its forces from the two Asian countries.

Touching on Trump’s statement, Matsui said he thought it would be best if Japan did not possess a nuclear arsenal, as it had been bombed by such weapons.

But, in calling for debate on the issue, he added: “What do we do if America’s military strength (in Japan) disappears? Wishful thinking doesn’t get us anywhere.”

Chief Cabinet Secretary Yoshihide Suga, the government’s top spokesman, has said in the past that Japan will maintain the three nonnuclear principles that prohibit it from owning, developing and transporting nuclear weapons.

Matsui’s comments also came the same day the nation’s new security laws — which are expected to bind the U.S. and Japanese militaries even closer together — came into effect. It was also just a few days after the party released its basic plan for constitutional revisions.

Osaka Ishin leaders are close to Prime Minister Shinzo Abe and Suga, who see Matsui and his party as potential allies on a number of issues, including amending the Constitution.

The Osaka governor’s comments are believed to reflect the sentiments of other right-leaning politicians as well.

http://www.japantimes.co.jp/news/2016/03/30/national/politics-diplomacy/osaka-governor-says-japan-debate-need-nuclear-weapons/#.VvvKo8fH87Q

NRA approves TEPCO’s plan to freeze underground walls of soil at Fukushima plant

icewall march 30 2016

NRA approves TEPCO’s plan to freeze underground walls of soil at Fukushima plant

The Nuclear Regulation Authority (NRA) decided on March 30 to approve Tokyo Electric Power Co. (TEPCO)’s plan to gradually freeze underground walls of soil around the crippled Fukushima No. 1 nuclear plant, starting with shields on the ocean side.

With the NRA’s approval, TEPCO, the operator of the crippled Fukushima nuclear complex, is to begin work as early as March 31 to freeze the walls built around the buildings of reactors Nos. 1 through 4 at the plant. The walls are designed to prevent underground water from flowing into the reactor buildings. But such a large-scale “wall of ice” has not been introduced anywhere in the world and it is unclear how much underground water the frozen shields will be able to prevent from flowing into the crippled nuclear complex.

Under the project to build the frozen soil walls, coolant chilled to a temperature of minus 30 degrees Celsius is to circulate through 1,568 pipes that are driven into the ground to a depth of around 30 meters, to create a “wall of ice.” The project is aimed at preventing underground water from entering the reactor buildings and reducing the amount of contaminated water being generated. If the project goes as planned, work to freeze the walls is expected to be completed in about eight months. TEPCO estimates that the walls will help the utility reduce the inflow of underground water to several dozen tons per day from the current 150 to 200 tons.

TEPCO is to gradually freeze the walls, starting with the one (about 690 meters) on the ocean side first, while leaving seven sections (a total of about 45 meters) on the mountain side unfrozen. TEPCO had initially planned to freeze all of the walls at once. But if the levels of underground water around the reactor buildings drop drastically, contaminated water remaining in the reactor buildings could flow out. So the NRA called for the gradual freezing of the walls. TEPCO then accepted the NRA’s suggestion.

The frozen-soil wall project is considered to be a key measure to deal with contaminated water along with the so-called “subdrain” project designed to reduce the amount of water being contaminated by removing underground water from wells around the reactor buildings. TEPCO started inserting pipes into the ground in June 2014 and completed its preparations to begin freezing the walls in February this year.

http://mainichi.jp/english/articles/20160330/p2a/00m/0na/012000c

TEPCO given OK on freezing soil at Fukushima plant

The Nuclear Regulation Authority gave the go-ahead to Tokyo Electric Power Co.’s plan to freeze the soil around the reactors at the crippled Fukushima No. 1 nuclear power plant from the seaside on March 30.

The aim of the frozen soil wall is to block the flow of groundwater into the reactor buildings to prevent it from becoming contaminated with radioactive substances.

The utility has already inserted 1,568 pipes to a depth of 30 meters in the ground around the No. 1 to No. 4 reactor buildings. The plan is to circulate liquid with a temperature of minus 30 degrees through the pipes to freeze the surrounding soil.

TEPCO’s plan is to first freeze the entire wall on the seaside and about half of the wall on the mountain side.

The effects of completing the frozen wall on the seaside are expected to show after about six weeks with water being prevented from flowing through. Then, the frozen portions on the mountain side will be gradually increased. When 95 percent of the wall is frozen, TEPCO will suspend the freeze, leaving cracks in seven places to allow some water through.

The utility predicts that with 95 percent of the entire soil wall frozen, about half of the groundwater will be blocked.

To freeze the entire wall on the mountain side, TEPCO will have to gain further approval from the NRA.

Initially, the electric power company planned to freeze soil only on the mountain side. However, the NRA pointed out that if groundwater is totally blocked from the mountain side, the level of water within the frozen soil near the reactors could become too low and with nothing outside to stop it, highly contaminated water inside the reactor buildings could more rapidly flow out.

Because of that, TEPCO decided in February that it will freeze the soil mainly from the seaside and collect data on the level of groundwater and, after that, it will freeze the entire wall.

“It is important to collect sufficient data in a continuous manner and implement the freezing while keeping watch,” said NRA chairman Shunichi Tanaka.

The plan to create the frozen soil wall was developed by an economy ministry committee in May 2013 as an important part of measures to decrease the volume of contaminated water. The work to insert pipes into the ground was completed in February.

http://ajw.asahi.com/article/behind_news/social_affairs/AJ201603300074

Prosecutors innocent TEPCO over radioactive water leakage into the ocean

The court said there is no evidence that proves that radioactive water flew out of the Fukushima nuclear power plant to the ocean. I hope this would finally convince those who haven’t been convinced that the state of Japan denies truth and violates peoples lives. Its time to get rid of Abe et al.

Prosecutors drop TEPCO case over radioactive water leakage

FUKUSHIMA–The Fukushima District Public Prosecutor’s Office announced on March 29 that it will not prosecute Tokyo Electric Power Co. or its executives for violating an environmental pollution law.

The decision came two and a half years after a group of plaintiffs, including residents of Fukushima Prefecture, filed a criminal complaint against TEPCO, operator of the crippled Fukushima No. 1 nuclear power plant, and its 32 current and former executives.

The group sought to bring charges against the utility and its executives for allowing radioactive contaminated water to be discharged into the sea.

In its decision, the prosecutors said there was “insufficient” evidence to press charges against TEPCO and some of its executives, including Naomi Hirose, company president. The remaining executives, the prosecutors said, “had no authority or responsibility to set measures to avoid the leakage in the first place,” therefore, the accusation has “no grounds.”

“The Fukushima police investigated the case for almost two years. It is extremely disappointing,” said Ruiko Muto, 62, the head of the plaintiff’s group, at a news conference in Tokyo on March 29. “We wanted them to look into the case further. We can’t accept this decision.”

The group is planning to appeal to the Committee for the Inquest of Prosecution. The group will meet with its lawyers on March 30 and decide on whether it will pursue further action.

http://ajw.asahi.com/article/0311disaster/fukushima/AJ201603300068

Charges ruled out for Tepco figures over Fukushima No. 1 radioactive water spillage into sea

FUKUSHIMA – Public prosecutors decided on Tuesday not to indict Tokyo Electric Power Co. President Naomi Hirose and other current and former executives of the utility over radioactive water leaks from the crippled Fukushima No. 1 nuclear power plant into the ocean.

Sufficient evidence was not found, the Fukushima District Public Prosecutor’s Office said.

In September 2013, a civic group filed a criminal complaint against 32 current and former Tepco executives, including Hirose and Tsunehisa Katsumata, former chairman of the operator of the northeastern nuclear power plant, saying tainted water leaked from storage tanks into the ocean due to their failure to take preventive measures.

Through its investigation, the Fukushima Prefectural Police concluded that some 300 tons of stored radioactive water had flowed into the sea as of July 2013 because Tepco executives neglected to monitor the tanks or take leak-prevention measures, and sent the case to the prosecutors last October.

The prosecutors said there was no evidence supporting the allegation that the leaked tainted water was carried into the sea by groundwater at the plant, which suffered meltdowns following the massive earthquake and tsunami in March 2011.

The group said it will ask for a prosecution inquest panel’s investigation.

http://www.japantimes.co.jp/news/2016/03/30/national/crime-legal/charges-ruled-tepco-figures-fukushima-no-1-radioactive-water-spillage-sea/#.VvtU1-IrLIU