for Japanese


25 December, 2019

ANRE Committee Clarifies Options for Treated Contaminated Water at Fukushima Daiichi NPPs, Viewing Both Offshore and Vapor Release Favorably

At a meeting on December 23, a governmental committee addressing the handling of treated contaminated water at the Fukushima Daiichi Nuclear Power Plants (NPPs) presented its conclusions thus far. The committee is part of the Agency for Natural Resources & Energy (ANRE), which falls under Japan’s Ministry of Economy, Trade and Industry (METI).

When contaminated water is purified by multi-nuclide removal equipment (the Advanced Liquid Processing System, or ALPS), the remaining water still contains tritium. So far, the water from Fukushima Daiichi has been stored continually in storage tanks.

With almost no more land available for the construction of more tanks, however, the committee has been considering what to do with the additional water once such tanks can no longer be used. Considerations include both technical and societal aspects, the latter referring to the pervasiveness of unfounded fears and rumors.

In its presentation at the recent meeting, the committee highlighted three scenarios for handling the treated contaminated water, for which there are precedents: offshore release, vapor release, and a combination of the two.

In all three cases, if the treated water stored in tanks were disposed of over a one-year period, radiation levels would be less than 1/1,000th the annual natural radiation level, based on an evaluation model from the United Nations Scientific Committee on the Effects of Atomic Radiation (UNSCEAR).

Other disposal methods addressed by a taskforce of the committee were geosphere injection, hydrogen release, and underground burial. Each was deemed to pose issues as practical options in terms of such matters as technical feasibility, the need for new regulations and standards, and difficulties ensuring disposal sites.

The committee had earlier met sixteen times since November 2016, hearing from such parties as local producers and distributors, as well as risk communication experts. In August 2018, it held explanatory meetings and public hearings in Fukushima and Tokyo.

In the December 23 presentation, which took all those results into consideration, the committee showed several courses of action regarding ungrounded fears and rumors stemming from treated water disposal.

As for risk communication measures, it suggested promoting public understanding on tritium and providing information to the media.

In the commercial sphere, meanwhile, it said that efforts should be expanded—including assigning specialized retail sales staff and opening online stores—by referring to successful cases.


This site uses Akismet to reduce spam. Learn how your comment data is processed.

SNS facebooktwitter

NPPs Map


Grossi on Fukushima: Marking a Decade Since the Accident

10 March, 2021
Grossi on Fukushima: Marking a Decade Since the Accident04:11

Recent News

17 September, 2021
NRA Permits Shimane-2 under New Regulatory Standards
14 September, 2021
IAEA Deputy Director General Evrard Visits Japan in Advance of Safety Review of ALPS-treated Water
1 September, 2021
Evaluation Report Issued by IAEA’s Review Mission to Fukushima Daiichi: First Visit since 2018
24 August, 2021
METI and IAEA Agree on Further Review Missions to Fukushima Daiichi
4 August, 2021
JAEA Restarts High-Temperature Engineering Test Reactor “HTTR”
2 August, 2021
Information about Fukushima Daiichi NPS Water Treatment
28 July, 2021
METI’s Committee Shows Rough Draft of Next Strategic Energy Plan
2 July, 2021
Mihama-3 Restarted After Decade-long Hiatus: First Restart in Japan of a Reactor Operating Beyond 40 Years
28 June, 2021
Mihama-3 Restarts after Decade-long Hiatus
25 June, 2021
New Canada-Japan Partnership Supports Greater Collaboration to Meet Climate Change Objectives and Net-zero Goals
24 June, 2021
METI Issues New Green Growth Strategy Through Achieving Carbon Neutrality
16 June, 2021
ANRE Sticks to “S+3E”
16 June, 2021
Japanese Cabinet Approves Environmental White Paper 2021
16 June, 2021
LDP Parliamentary Association to Reconfirm Position on Utilization of Nuclear Power
16 June, 2021
Fukui Governor Concerned about Deletion of Reference to “Maximum Utilization” of Nuclear Power
14 June, 2021
Working Group on Offshore Release of Treated Water Meets in Miyagi
14 June, 2021
NRA Considers Policy on Treating Slurry from ALPS, with Local Understanding Essential
11 June, 2021
Japanese Cabinet Approves Energy White Paper 2021
11 June, 2021
Government Omits Description of “Maximum Utilization” of Nuclear Power
9 June, 2021
MNF Hopes to Resume Fuel Production as Early as November