17.10.2020, 01:02

Japan set to release Fukushima water into sea media reports

Japan set to release Fukushima water into sea media reports
An aerial view shows the earthquake-damaged Fukushima nuclear power plant in Japan's Fukushima prefecture on March 122011. The quake triggered a massive tsunami. Photo: AFP

Japan’s government has decided to release radioactive water from the devastated Fukushima
nuclear plant
into the sea, media reports said on October 16 with a formal announcement expected to be made later this month.


The decision is expected to rankle neighbouring countries like the Republic of Korea that has retained a ban on imports of seafood from the Fukushima region imposed after the nuclear disaster.


The disposal of contaminated water at the Fukushima Daiichi plant has been a longstanding problem for Japan as it proceeds with an decades-long decommissioning project. Nearly 1.2 million tonnes of contaminated water are currently stored in huge tanks at the facility,
Reuters
said.


The plant, run by Tokyo Electric Power Company Holdings Inc 9501.T, suffered multiple nuclear meltdowns after a 2011 earthquake and tsunami.


On October 16 Japan’s industry minister Hiroshi Kajiyama said no decision had been made on the disposal of the water yet, but the government aims to make one quickly.


“ To prevent any delays in the decommissioning process, we need to make a decision quickly ,” he told a news conference.


He did not give any further details, including a time-frame.


Fukushima nuclear power plant in March 2019. Photo by Akira Kodaka

The
Asahi newspaper
reported that any such release is expected to take at around two years to prepare, as the site’s irradiated water first needs to pass through a filtration process before it can be further diluted with seawater and finally released into the ocean.


In 2018 Tokyo Electric apologised after admitting its filtration systems had not removed all dangerous material from the water, collected from the cooling pipes used to keep fuel cores from melting when the plant was crippled.


It has said it plans to remove all radioactive particles from the water except tritium, an isotope of hydrogen that is hard to separate and is considered to be relatively harmless.


It is common practice for nuclear plants around the world to release water that contain traces of tritium into the ocean.


In April, a team sent by the International Atomic Energy Agency to review contaminated water issues at the Fukushima site said the options for water disposal outlined by an advisory committee in Japan - vapour release and discharges to the sea – were both technically feasible. The IAEA said both options were used by operating nuclear plants.


Last week, Japanese fish industry representatives urged the government to not allow the release of contaminated water from the Fukushima plant into the sea, saying it would undo years of work to restore their reputation.


During Tokyo’s bid to host the Olympic Games in 2013 then-prime minister Shinzo Abe told members of the International Olympic Committee that the Fukushima facility was “under control”.


The Games have been delayed to 2021 because of the pandemic and some events are due to be held as close as 60 km (35 miles) from the wrecked plant, according to
Reuters ./.