On March 27, the Tokyo Electric Power Co. (TEPCO) released its Decommissioning Midterm Action Plan 2020, describing the main work processes to be conducted in the decommissioning of the Fukushima Daiichi Nuclear Power Plants (NPPs) through the end of 2031 or so. The so-called “mid-and-long-term roadmap” toward the decommissioning of the Fukushima Daiichi NPPs—describing the specific steps and concrete measures to be taken until decommissioning is completed—was revised at the end of 2019, based on technical proposals by the Nuclear Damage Compensation and Decommissioning Facilitation Corporation (NDF). The roadmap also covers the removal of spent fuel from dedicated pools and the start of the removal of the fuel debris. To facilitate the planning to achieve the roadmap’s goals, the Decommissioning Midterm Action Plan 2020 presents specific actions to be taken over a decade or so in dealing with the contaminated water, the removal of spent fuel from spent fuel pools, the removal of fuel debris, and measures to deal with waste. The plan is expected to be reviewed every year, and will be adjusted based on future progress. According to the action plan, the fuel removal currently being undertaken from the spent fuel pool at Unit 3 should be completed during the current fiscal year (that is, by March 31, 2021). According to the roadmap, the removal of spent fuel at Units 1 and 2 is expected to begin in FY28 and FY26, respectively. The removal of the fuel debris is expected to begin sometime in FY21 (starting in April 2021), beginning with Unit 2.
Japanese Atomic Industry Forum 3rd April 2020 read more »
TEPCO, Japan’s largest power company group, has released a report which outlines two potential methods for disposing of water treated with multi-nuclide removal equipment, that is currently being stored at the damaged Fukushima Daiichi nuclear power plant. The International Atomic Energy Agency (IAEA) published a review last week which concludes that the two options presented by TEPCO – discharge into the sea and vapour release – are technically feasible. Additionally, the methods are used routinely at operating nuclear plants around the worldwide, under specific regulatory authorisations based on safety and environmental impact assessments.
Chemical Engineer 6th April 2020 read more »