Title: Japanese cleanup officials see how Hanford does it
Author: Annette Cary
Date: January 18, 2013
[...] At Hanford’s new 200 West Pump and Treat plant, Hanford’s largest and most sophisticated plant for cleaning contaminated groundwater, the TEPCO visitors heard about the different systems to strip radioactive and organic chemical pollutants out of water pumped out of the ground.
Clean water then is injected back into the ground on two sides of the plume of contaminated water, helping to keep contamination from spreading.
“We’re using clean water to control the plume,” said Bill Barrett of CH2M Hill Plateau Remediation Co.
Fukushima might have a more daunting challenge. Hanford is in the desert, but Fukushima is in a mountainous area close to the ocean, [Masumi Ishikawa, general manager of the Nuclear Fuel Cycle Department for TEPCO] said.
Groundwater is close to the surface there, and before the 2011 disaster, it had a pumping program to make sure basements had no leaks. [...]
See also: AP: "Outrageous" -- Japan nuclear engineer worries public water supplies far beyond Fukushima plant could be at risk -- Contamination from below reactors may already be in underground water system
Published: January 18th, 2013 at 11:48 am ET
- Record levels of radioactive material detected at Fukushima — 600,000 Bq/liter in groundwater — Official: May be seeping from reactors into ocean July 8, 2013
- Radioactive material “soars” in ocean near Fukushima plant — Tepco: Contaminated groundwater leaking into Pacific? June 25, 2013
- Underground water just 4 inches from surface by Fukushima reactor — AP: Groundwater closer to surface than Tepco told officials investigating tank leak August 28, 2013
- Wall St. Journal: ‘Potentially lethal’ Strontium-90 moving deeper into groundwater at Fukushima, levels rising — Asahi: Radioactive material spreading below underground wall next to ocean — Record high on other side of final barrier by Unit 3 January 31, 2014
- Reuters Exclusive: Barrier is breached at Fukushima says official — ‘Highly radioactive’ water entering ocean — Will flow ‘extremely fast’ if it reaches surface — Tepco sorry for trouble August 5, 2013