Tag Archives: Fukushima radioactive waste

The Burial: nuclear waste of Fukushima

piles of radioactive waste from Fukushima, image from japan times.

The Japanese government on November 17, 2017 began the disposal of low-level radioactive waste generated by the 2011 Fukushima nuclear disaster, more than six years after the crisis triggered by the devastating earthquake and tsunami.

A disposal site in Fukushima Prefecture accepted the first shipment of the waste, which contains radioactive cesium exceeding 8,000 becquerels and up to 100,000 becquerels per kilogram, and includes rice straw, sludge and ash from waste incineration.

The Environment Ministry is in charge of the disposal of the waste, amounting to about 200,000 tons in 11 prefectures across the country as of the end of September 2017, Most of the waste, 170,000 tons, is in the prefecture hosting the crippled Fukushima Daiichi nuclear power plant.

Under the ministry’s policy, the waste is to be disposed of in each prefecture. However, Fukushima is the only prefecture where its disposal has started, while the other prefectures have met with opposition from local residents. In Fukushima, it will take six years to finish bringing the waste that has been stored in the prefecture into the disposal site, the ministry said.

Excerpt from NationalDisposal of low-level radioactive waste from Fukushima nuclear disaster begins, Japan Times, Nov. 18, 2017

Fukushima Waste not Tainted Anymore?

fukushima

The Chiba Municipal Government of Japan  on June 28, 2016  filed for Environment Ministry approval to lift the radioactive designation for waste stored in the city that was contaminated by the Fukushima reactor meltdowns five years ago.  This marked the first application in Japan seeking to lift the radioactive designation for waste tainted by the 2011 meltdowns at Tokyo Electric Power Company Holdings Inc.’s Fukushima No. 1 nuclear power plant.  The move came after the city found that levels of radioactive materials in the designated waste are lower than the national designation standards of over 8,000 becquerels per kilogram.

At present, designated radioactive waste generated by the nuclear disaster is stored in 12 prefectures in eastern Japan, including Tokyo.

In Chiba, 7.7 tons of designated waste is currently stored at a waste disposal center.The lifting of the designation will allow the city to dispose of the waste the same way as general waste,…

Excerpt from Chiba wants radioactive designation lifted from Fukushima-contaminated waste, The Japan Times, June 29, 2016

To Sell and Forget: Fukushima nuclear waste

Radiation hotspot in Kashiwa

The March 11, 2011 earthquake and subsequent tsunami tore through coastal towns in northern Japan and set off meltdowns at Tokyo Electric Power’s Fukushima Daiichi plant, which sits partly in Okuma.  Japan has since allocated more than $15 billion to an unprecedented project to lower radiation in towns around the plant, such as Okuma. Every day across Fukushima prefecture, teams of workers blast roads with water, scrub down houses, cut branches and scrape contaminated soil off farmland.  That irradiated trash now sits in blue and black plastic sacks across Fukushima, piled up in abandoned rice paddies, parking lots and even residents’ backyards.  Japan plans to build a more permanent storage facility over the coming years in Okuma and Futaba, another now-abandoned town close to the Fukushima nuclear plant – over the opposition of some local residents.

“This land has our blood and sweat running through it and I can’t just let go of it like that,” said Koji Monma, 60, an Okuma resident who heads a local landowners’ group.  Fukushima’s governor agreed to take the waste facility after Tokyo said it would provide $2.5 billion in subsidies, and promised to take the waste out of the prefecture after 30 years. Mayors of Futaba and Okuma have since agreed to host the 16 square km (6.2 square mile) facility – about five times the size of New York’s Central Park – which will wrap around the Fukushima plant and house multiple incinerators.

Some 2,300 residents who own plots of land in Futaba and Okuma which the government needs for the waste plant face what many describe as an impossible choice...Distrust of government promises runs deep among residents here. …

The ministry has hired around 140 real estate representatives to negotiate land sales with individual owners.

Excerpts from BY MARI SAITO, Fukushima residents torn over nuclear waste storage plan, Reuters, Mar. 9, 2014

Controlling Radioactive Water: Leaks of Fukushima to the Pacific Ocean

pacific

Sensors at the Fukushima nuclear plant have detected a fresh leak of highly radioactive water to the sea, the plant’s operator announced on Feb. 22, 2015, highlighting difficulties in decommissioning the plant.  Tokyo Electric Power Co (Tepco) said the sensors, which were rigged to a gutter that pours rain and ground water at the Fukushima Daiichi plant to a nearby bay, detected contamination levels up to 70 times greater than the already-high radioactive status seen at the plant campus.  Tepco said its inspections of tanks storing nuclear waste water did not find any additional abnormalities, but it shut the gutter to prevent radioactive water from going into the Pacific Ocean.
Fresh leak detected at Fukushima N-plant, Agency France, Presse, Feb. 23, 2015

Three Companies to Grapple with Fukushima Mess

tritium

The [Japanese] government picked three overseas companies to participate in a subsidized project to determine the best available technology for separating radioactive tritium from the toxic water building up at the Fukushima No. 1 nuclear plant.  Tokyo Electric Power Co. is currently test-running a system it says is capable of removing 62 types of radioactive substances from the contaminated water, but not tritium.  Thus tritium-laced water is expected to accumulate at the plant in the absence of any method to remove the isotope.

The three firms chosen from 29 applicants are U.S. firm Kurion Inc., which offers technologies to treat nuclear and hazardous waste; GE Hitachi Nuclear Energy Canada Inc., a joint venture of Hitachi Ltd. and U.S. firm General Electric Co.; and Federal State Unitary Enterprise RosRAO, a Russian radioactive waste management firm.

The government will provide up to ¥1 billion for each examination of the technologies and running costs, and consider whether any of them can be applied to treat the water at Fukushima No. 1, the industry ministry said.  The three companies are to conclude their experiments by the end of March 2016, a ministry official said.  The official cautioned there is no guarantee that any of the technologies will be put to practical use.

Three firms picked to help tackle toxic water at Fukushima No. 1, Japan Times, Aug. 26, 2014

In January 2014 it was made public that a total of 875 terabecquerels (2.45 g) of tritium are on the site of Fukushima Daiichi,and the amount of tritium contained in the contaminated water is increasing by approximately 230 terabecquerel (0.64 g) per year. According to a report by Tepco “Tritium could be separated theoretically, but there is no practical separation technology on an industrial scale.”  See Wikipedia

All Comes Down to Money: the interim disposal of Fukushima nuclear waste

anti-nuclear protesters in Japan pushing fake nuclear waste

Fukushima Prefecture is set to accept the construction of an interim facility to store radioactive waste from cleanup work due to the nuclear disaster, advancing the stalled process of decontaminating the affected areas.  The prefectural government has decided to shoulder the difference between the appraised value of land in Okuma and Futaba, where the structure will be built, and the price it would have fetched before the 2011 accident at the Fukushima No. 1 nuclear power plant.

The decision came after landowners insisted that the land should be bought at a fair market value because the current appraisals are much lower than pre-disaster estimates.  Consent from local governments is expected to move forward the central government’s plan to start transporting radioactive soil and other contaminated waste to the storage site in January.

Okuma and Futaba host the crippled Fukushima No. 1 nuclear power plant. The residents of the two towns are still living as evacuees due to high levels of radiation in their hometowns. Talks between local officials and the central government over the planned facility reached an impasse after Environment Minister Nobuteru Ishihara enraged landowners with a comment in June.  “In the end, it will come down to money,” Ishihara said, referring to efforts to gain local approval for the storage facilities. Residents were angry because of the implication they could be easily bought.

The stalemate threatened to jeopardize the entire decontamination operation in the prefecture since the storage site is indispensable to advance the work to clean up and rebuild the affected communities.  In an effort to break the stalemate, the central government on Aug. 8 offered to double the funds to be provided to the local governments to 301 billion yen ($2.9 billion).

Fukushima Prefecture to accept intermediate storage facility for radioactive waste, THE ASAHI SHIMBUN, August 23, 2014

Fukushima Nuclear Waste and the Graves

tokyo dome,  is a 55,000-seat baseball stadium located in Bunkyo Ward of Tokyo.

The central government [of Japan] is compiling a generous compensation plan to overcome the reluctance of two towns to host intermediate storage facilities for radioactive waste from the Fukushima nuclear disaster.  Measures being considered for the municipalities of Okuma and Futaba include buying or renting properties at inflated real estate values and covering the costs to relocate the grave sites of relatives.

Okuma and Futaba are hosts to Tokyo Electric Power Co.’s crippled Fukushima No. 1 nuclear power plant. The two towns and the Fukushima prefectural government have not given their consent for the intermediate storage facilities, with many residents fearing the facilities will become permanent fixtures in their backyards.  The waste, expected to fill the equivalent of 23 Tokyo Domes, is currently being kept temporarily in various locations in Fukushima Prefecture where decontamination work has been conducted.

The government under then Prime Minister Naoto Kan announced in August 2011 that intermediate storage facilities would be needed to take in the waste from those locations.  However, little progress has been made on constructing intermediate storage facilities, and the government says the delay has affected further decontamination efforts and overall reconstruction in Fukushima.

Large parts of Okuma and Futaba continue to have high levels of radiation, and prospects are dim that residents who fled the areas can return to their homes in the near future. The radiation levels have also pushed down real estate values in the two municipalities.  Under the central government’s compensation plan, the real estate values will be calculated on the assumption that the land and buildings will one day be available for use after radiation levels have fallen far enough for the evacuation orders to be lifted.  Government compensation will be separate from the compensation that local residents can receive from TEPCO.

Residents have also raised concerns that they would be unable to visit graves in Okuma and Futaba if the intermediate storage facilities are constructed there.  The central government’s plan would not only cover the costs of moving the gravestones and remains away from the storage facilities, but it would also pay for memorial services that would be needed in line with the transfer. In addition, the government would provide support if the local communities decide to construct a new cemetery in a location where radiation levels are comparatively low.

For families that do not want to move the graves, the central government will consider allowing the graves to remain at their current sites. The intermediate storage facilities could be designed to avoid such grave sites, and family members would be allowed to visit the graves even after the facilities are completed.

Government sweetening the pot for storage of Fukushima radioactive waste, THE ASAHI SHIMBUN, May 18, 2014