Antinuclear

Australian news, and some related international items

TEPCO: Frozen soil wall effect limited

Fukushima 311 Watchdogs

2018/03/01
Tokyo Electric Power Company, or TEPCO, says an underground frozen soil wall around its Fukushima Daiichi nuclear plant has had a limited effect in reducing groundwater contamination.
 
The 1.5-kilometer-long barrier is designed to keep groundwater from flowing into reactor buildings that were damaged by the March 2011 earthquake, tsunami and nuclear meltdowns.
 
The wall was expected to be the main defense against groundwater contamination, as about 500 tons of water was being tainted daily by radioactive substances.
 
TEPCO officials on Thursday estimated the amount of new contaminated water to have decreased by about 95 tons a day from before the wall was built.
They said the estimate is based on 3 months of data including that from before and after the wall was almost completed last November.
 
TEPCO had introduced a so-called sub-drain system for pumping up water from wells dug around the buildings.
 

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March 2, 2018 - Posted by | Uncategorized

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