Iron-oxidizing bacterium forming microbial population in contaminated groundwater

(Before It's News)

Following up this article.. Unidentified algae looking-creature mass generated in bypass well / Tepco “Great quantity” [URL]

The unidentified algae was Iron-oxidizing bacterium, Tepco announced in the report published on 11/27/2014.

Iron-oxidizing bacteria are bacteria that derive the energy they need to live and multiply by oxidizing dissolved ferrous iron. [Wikipedia]

The bacteria is forming the yellowish brown iron sediment (as photos below), which true fungi and protozoans are also living in. It turns black when the water is pumped up so it is also assumed that sulfate−reducing bacteria.

By a camera inspection, they observed the yellowish brown sediment accumulates on the internal wall of the bypass well.

In this report, Tepco emphasizes Iron-oxidizing bacteria is common in groundwater of reducing environment with Oxygen or tunnel. However it is also known to grow in the environment to richly contain iron or manganese. The origin of the derived iron or manganese is not identified.

http://www.tepco.co.jp/nu/fukushima-np/roadmap/images/d141127_07-j.pdf

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