Investor Presentaiton
NRA, Japan
Nuclear Regulation Authority
Contaminated Water Issue
at Fukushima Daiichi
■ Contaminated water in T/Bs is treated and injected back to RPVs.
■ App. 400m³/day of groundwater is intruding into TBS and it forces the
capacity of tanks increase.
App. 720 m³/day
Reactor building
Reactor cooling water
injection: App. 320 m³/day
Turbine
Building(T/B)
19
Groundwater inflow:
App. 400 m³/day
Injection tank
Water
Surplus water:
Reuse
Desalination
equipment
App. 400 m³/day generated
http://www.iaea.org/
Edited by the author
Medium-to low-level
tanks
tanks
Cesium removal
devices
App. 720 m³
/day
Test operation currently conducted
Advanced Liquid
Processing system
(ALPS)
Main process building
High-temperature
Incinerator building
(Temporary storage)
(1) Areva (France)
<Standby>
(2) Kurion (USA)
<Used as backup>
(3) SARRY (Toshiba)
<Used for normal operation>
Water storage tanksView entire presentation