Extremely High Levels Of Nuclear Cesium Radiation Found In Japan Sewer Systems


Extremely High Levels Of Nuclear Cesium Radiation Found In Japan Sewer Systems And Over 500 Tons Of The Radioactive Sludge Has Been Shipped Off To Be Use In Producing Cement.

Extremely high levels of radioactive sewage have been detected in Japan sewer systems according to reports from JiJi press, NHK and other Japanese news agencies.

The high levels of radioactivity are believed to be caused by the rain collecting radioactive substances from the ground during runoff and then carrying the contaminates into the sewer system. Complicating the matter further is the levels of radiation in the sewage concentrates to even higher levels once the raw sewage is processed into sludge at local processing factilities.

Raw sewage measured at one local processing facility contained 26,400 becquerels of radioactive cesium per kilogram. While this is an extremely high level of radiation once processed into sludge the level of radioactive cesium was measured to contain 334,000 becquerels of cesium per kilogram.

The post-processed sewage sludge from this particular plant is sent to a local cement company where it is used produce cement. Japanese media is reports that since the March 11th quake over 500 tons of the sewage sludge have been shipped to the cement company.

There is no word on the levels of other radioactive contaminants at this time and Japanese officials say there are no protocols in place to handle this type of situation but will have a decision within a few days on how to deal with the problem.

High-Level Radiation Detected in Fukushima Sewage Sludge

Fukushima, May 1 (Jiji Press)–High levels of radioactive cesium have been found in sewage sludge in Fukushima Prefecture, northeastern Japan, the prefectural government said Sunday.

The sludge at a treatment center in Koriyama had 26,400 becquerels of radioactive cesium per kilogram. Slag made by reducing the volume of sewage sludge had 334,000 becquerels per kilogram.

Massive amounts of radioactive substances released by the crippled Fukushima No. 1 nuclear power plant may have flowed into sewage when rain fell, prefectural officials said.


Source: JiJI Press

The article goes on to report that the treatment center where the radioactive sewage has been detected processes 80 tons of sludge per day and approximately 10 tons of sludge daily are transported to a cement company located outside of the Fukushima prefecture where it is recycled and use in cement production. The cement company has received approximately 500 tons of the radioactive sludge since the March 11th earthquake although it is unconfirmed whether or not the cement company has actually used any of the sludge shipped since the disaster.

NHK  further reports:

Cesium found in sludge

Relatively high levels of radioactive cesium have been detected in the sludge from a waste water treatment plant in Koriyama City, Fukushima Prefecture.

The prefectural government is tracking some of the sludge that has been shipped out of the prefecture to be used in making cement.

The prefecture’s investigation found that the sludge contained 26,400 becquerels of radioactive cesium per kilogram.

The solidified slag made from it contained 334,000 becquerels per kilogram, which is 1,300 times the level before the accident at the Fukushima Daiichi nuclear power plant.

The prefecture says rain likely washed radioactive substances from the surface of the ground into the sewer, and they became concentrated through processing.

The sludge from the facility is transported out of the prefecture and used to produce cement.

The prefectural government will suspend the recycling and track the sludge that has been shipped since the accident to determine how it has been used.


Source: NHK

NHK adds the incident will be reported the Nuclear Safety Agency and various government organizations will work together to find ways to safely store and process the radioactive sewage until a solution is found.  The Japanese government added there is no precedent for this but they will soon make a decision as to what to do with the radioactive sewage.

Categories: FUKUSHIMA

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