Friday, August 26, 2011

Contaminated Water Treatment System Stops for the Nth Time at Fukushima I Nuke Plant

Yomiuri Shinbun (3:59PM JST 8/26/2011):


TEPCO announced on August 26 that the contaminated water treatment system at Fukushima I Nuclear Power Plant stopped temporarily.


The pump that transfer the treated water from Kurion's cesium absorption system to AREVA's co-precipitation system stopped automatically at 2:21PM.


The treatment system last stopped on August 12 due to the abnormal signal from the control system. TEPCO thinks the stoppage this time is due to too much load on the pump, and is currently looking into the cause.


Anonymous said...


From a article

Virginia Power Plant Initiating Cold Shutdown for Inspections:

"Among other concerns related to seismic risk, inspectors found other small vulnerabilities at the plant, such as seismic floodwalls being located in a non-seismic building and certain safety equipment that was not designed to withstand an earthquake."

Another thing I've found is North Anna NPP is designed for a 5.9 on the stone portions of the facility and a 6.1 on the soil portion. It is interesting that the USGS at one point rated the quake at 5.9 only to downgrade it a few hours later. I'm sure intensity revisions happen all the time but it still makes me wonder if the revision was ordered to quell the critics.

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