Contaminated water management
We are creating multi-layered countermeasures based on the following 3 basic principles pertaining to countermeasures for contaminated water at Fukushima Daiichi NPS
- “Remove” contamination source
- “Isolate” water from contamination
- “Prevent leakage” of contaminated water
As we move forward with preventive and multi-layered contaminated water countermeasures based on the principles described above we can expect results, but they require confirmation and verification to be used, and the following technical verifications were conducted.
＜Equipment servicing verification (Countermeasures to Manage Contaminated Water)＞
- Large-scale verification of impermeable walls (“Ice Wall”) [Prevent leakage]
- High-performance Advanced Liquid Processing System (High-performance ALPS) equipment verification [Remove]
＜Technology verification (Countermeasures for Decommissioning and Contaminated Water Treatment)＞
- Tritium separation [Remove]
- Seawater purification [Remove]
- Collection of radioactive materials from soil [Remove]
- Tank decontamination [Prevent leakage]
- Unmanned boring technology [Other]
R&D efforts
Demonstration of the process control technology of contaminated water
Plant investigation, measurement data, and information
Contaminated water related da-ta
Current Status of Fukushima Daiichi NPS
- Monthly progress(Current Status of Fukushima Daiichi NPS)
Results of water quality analysis
- Overall
- Status of stagnant water within buildings including contaminated water, etc. (As of December 26, 2024) (PDF) Only Japanese siryou1new
- Building periphery (sub-drains, etc.)
- Results of water quality analysis of sub-drain purified water (October 2024) (PDF) new
- Groundwater bypass
- Harbor & sea region
Stagnant water status
- Storage status of stagnant water ( As of December 19, 2024 )new (PDF) Only Japanese siryou1
Tank status
- Table of tanks in each area ( As of December 19, 2024 ) (PDF) Only Japanese siryou1 new