Is Fukushima doomed to become a dumping ground for toxic waste? — The Guardian

” This month, seven years after the 2011 Fukushima Daiichi reactor meltdowns and explosions that blanketed hundreds of square kilometres of northeastern Japan with radioactive debris, government officials and politicians spoke in hopeful terms about Fukushima’s prosperous future. Nevertheless, perhaps the single most important element of Fukushima’s future remains unspoken: the exclusion zone seems destined to host a repository for Japan’s most hazardous nuclear waste.

No Japanese government official will admit this, at least not publicly. A secure repository for nuclear waste has remained a long-elusive goal on the archipelago. But, given that Japan possesses approximately 17,000 tonnes of spent fuel from nuclear power operations, such a development is vital. Most spent fuel rods are still stored precariously above ground, in pools, in a highly earthquake-prone nation.

Japanese officialdom relentlessly emphasises positive messages regarding Fukushima’s short- and medium-term future, prioritizing economic development and the gradual return of skeptical evacuees to their newly “remediated” communities. Yet the return rate for the least hard-hit communities is only about 15%. Government proclamations regarding revitalisation of the area in and around the exclusion zone intone about jobs but seem geared ominously toward a future with relatively few humans.

The Fukushima prefecture government is currently promoting a plan, dubbed The Innovation Coast, that would transform the unwelcoming region into a thriving sweep of high-tech innovation. Much of the development would be directed towards a “robot-related industrial cluster” and experimental zones like a robot test field.

The test field would develop robots tailored for disaster response and for other purposes on a course simulating a wide range of hurdles and challenges already well represented in Fukushima itself. Large water tanks would contain an array of underwater hazards to navigate, mirroring the wreckage-strewn waters beneath the Fukushima Daiichi plant, where a number of meltdown-remediating underwater robots have met a premature demise in recent years.

Elsewhere on the robot test field, dilapidated buildings and other ruins would serve as a proving ground for land-based disaster-response robots, which must navigate twisted steel rods, broken concrete and other rubble. Engineered runways and surrounding radiation-hit areas would serve as prime territory for testing parlous aerial drones for a range of purposes in various weather conditions – which would be difficult or impossible to achieve elsewhere in relatively densely populated Japan.

The planned site for the test field would link with a secluded test area about 13km south along the coast to coordinate test flights over the exclusion zone’s more or less posthuman terrain.

Naturally, unlike Fukushima’s human residents, robots would be oblivious to the elevated radiation levels found outside the Fukushima Daiichi facility. In addition, prefectural officials have suggested that the exclusion zone environs could play host to a range of other services that don’t require much human intervention, such as long-term archive facilities.

Proud long-time residents of Fukushima, for their part, see all this development as a continued “colonisation” of the home prefecture by Tokyo – a well-worn pattern of outsiders using the zone for their own purposes, as were the utility representatives and officials who built the ill-fated plant in the first place.

Years of colossal decontamination measures have scraped irradiated material from seemingly every forest, park, farm, roadside, and school ground. This 16 million cubic metres of radioactive soil is now stored in provisional sites in and around the exclusion zone, waiting to be moved to an interim storage facility that has hardly been started and for which nearly half of the land has not yet even been leased.

The state has promised to remove all the contaminated soil from Fukushima after 30 years, and government officials have been scrupulous in insisting that this will be the case – for soil. Yet in a nation with about 17,000 tonnes of highly radioactive spent fuel rods and no willing candidates for secure repositories, it is only a matter of time before it becomes possible for politicians to publicly back the idea of transforming the area around Fukushima Daiichi into a secure repository.

Government officials, including those tasked with nuclear waste storage, describe the quintessentially Japanese strategy of saki-okuri, or calculated postponement, in the context of nuclear waste storage. Such perception management is a subtle business, but by quietly and unrelentingly pushing back the day of reckoning – slowly changing the terms of debate – the broadly distasteful prospect of storing Japan’s most dangerous material in its most tragically maltreated region would become gradually less intolerable to Japanese sensibilities.

The expanse of Fukushima in and around the exclusion zone represents an already contaminated area with, since 2011, far fewer residents to protest against such plans. Such a rare opportunity for relatively unopposed intervention in a struggling area will surely prove irresistible to the nuclear lobby.

Fukushima has been marginalised, disenfranchised, and outmanoeuvred for decades. After all, the electricity from Fukushima Daiichi went straight to the capital, not to Fukushima itself, which bore the risks. Since 2011, Fukushima has been saddled with the staggering burden of the meltdown’s aftermath that, despite government PR, will encumber and stigmatise its citizens for at least several decades. ”

by Peter Wynn Kirby, The Guardian

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Robotic technology development center for Fukushima — World Nuclear News

” A new centre will develop and test remote-controlled equipment for use in decommissioning the Fukushima Daiichi plant while boosting the local economy in Fukushima prefecture.

Work began on the Naraha Remote Technology Development Centre, which is being built by the Japan Atomic Energy Agency (JAEA), in September 2014. The centre at Nahara-Minami industrial park is due to begin full operations in the 2016 fiscal year. The complex will house a mock-up of the lower part of a reactor containment vessel, representing the interior of the Fukushima Daiichi nuclear power plant, as well as an indoor demonstration test area for disaster response robots which will also be used to train operators and workers.

The centre will provide facilities for the development of simulators and remote-controlled robots to demonstrate technology for use in situations such as repairing leakages in the lower parts of Fukushima’s primary containment vessel and inside the reactor buildings. The facility will enable devices to be tested in environments including a water tank, barriers, slopes, stairs and rubble. Virtual reality systems will be developed to evaluate operating procedures and for training.

As well as the buildings where experimental work will take place, the facility will also include living accommodation for researchers and staff as well as conference and training facilities. The facility is within 20 km of the Fukushima Daiichi plant, and it is hoped that its work will contribute to the revitalization of the local economy.

In an interview with the Japan Atomic Industrial Forum’s(JAIF) Atoms in Japan, Hiroshi Kawamura, director of nuclear plant decommissioning research at JAEA, outlined his vision for the new centre, saying he was keen to attract creative researchers and engineers from Japan and elsewhere, “We should see our work as taking steps forward, not as cleaning up a mess,” he said.

The project is already drawing interest from overseas, and Kawamura said that as well as tackling the immediate challenges posed by Fukushima, the facilities could be used to test robots for use in other challenging working environments. ”

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