Blog Archive

Thursday, 9 January 2014

Microalgae and aquatic plants can help to decrease radiopollution in the Fukushima area

 Microalgae and aquatic plants can help to decrease radiopollution in the Fukushima area

After a huge earthquake caused severe damage to the Fukushima 1 Nuclear Power Plant in 2011, Japanese plant scientists have been working to determine the impact of radioactive contamination on wild and cultivated plants. In a special issue of Springer's Journal of Plant Research, these experts examine the potential adverse effects of radioactivity on nature and society.
Of particular interest is an article focusing on the efforts of a research group led by Yoshihiro Shiraiwa of the University of Tsukuba. Seventeen microalgae, aquatic plants and algae that are able to efficiently remove , iodine and strontium from the environment were identified. The findings add to existing bioremedial options which could help to decrease radiopollution in the Fukushima area.
Such measures are of utmost importance, because a large quantity of radioactivity has been released into the atmosphere. At the same time, the volume of radio-polluted is increasing daily because of the continuous injection of cool water and the incurrent of underground water into the still defective reactor.
Because the plant strains identified are easy to harvest and dry, they could be potentially useful to recover radioactive cesium from a huge volume of radio-polluted water if cesium is dissolved in water.
Notably, a eustigmatophycean unicellular algal strain, nak 9, was found to be the most efficient in eliminating up to 90 percent of cesium without any special treatment needed. The researchers suspect the alga is able to do this by accumulating on its cell surface. Potentially, nak 9 could be used to decontaminate highly radio-polluted water stored in Fukushima's nuclear reactor building, or to reduce the volume of the radio-polluted water. The researchers noted, however, that further studies are needed on the mass cultivation and efficient coagulation and sedimentation of these algal strains before their findings can be put into practice.
"Biological concentration of radionuclides is an essential technology for bioremediation of radio-polluted soils and water," said lead researcher Yoshihiro Shiraiwa. "Therefore our results provide an important strategy for decreasing radiopollution in the Fukushima area."

More informations : Fukuda, S., Shiraiwa, Y., et al. (2013). Global searches for microalgae and aquatic plants that can eliminate radiatioactive cesium, iodine and strontium from the radio-polluted environment : a bioremediation strategy. Journal of Plant Research. DOI: 10.1007/s10265-013-0596-9 (http://dx.doi.org/10.1007/s10265-013-0596-9)

Source : http://phys.org/news/2014-01-microalgae-aquatic-decrease-radiopollution-fukushima.html

 Global searches for microalgae and aquatic plants that can eliminate radioactive cesium, iodine and strontium from the radio-polluted aquatic environment: a bioremediation strategy
http://link.springer.com/article/10.1007%2Fs10265-013-0596-9


My opinion: 
Even such possibility brings us  some hope, 
Even if those algae would indeed attract and assimilate 90% of the environmental contamination, the problem of what to do afterwards with all those highly contaminated algae remains, and with 3 ongoing meltdown at Fukushima Daiichi constantly unceasingly puking contamination into the sea, to remove it all out of the seawater would be a pipe dream turning a never ending nightmare....
To me this solution looks like harnessing the ox behind the plow....



More information: Fukuda, S., Shiraiwa, Y., et al. (2013). Global searches for microalgae and aquatic plants that can eliminate radioactive cesium, iodine and strontium from the radio-polluted aquatic environment: a bioremediation strategy. Journal of Plant Research.

Read more at: http://phys.org/news/2014-01-microalgae-aquatic-decrease-radiopollution-fukushima.html#jCp

More information: Fukuda, S., Shiraiwa, Y., et al. (2013). Global searches for microalgae and aquatic plants that can eliminate radioactive cesium, iodine and strontium from the radio-polluted aquatic environment: a bioremediation strategy. Journal of Plant Research. DOI: 10.1007/s10265-013-0596-9

Read more at: http://phys.org/news/2014-01-microalgae-aquatic-decrease-radiopollution-fukushima.html#jCp
More information: Fukuda, S., Shiraiwa, Y., et al. (2013). Global searches for microalgae and aquatic plants that can eliminate radioactive cesium, iodine and strontium from the radio-polluted aquatic environment: a bioremediation strategy. Journal of Plant Research. DOI: 10.1007/s10265-013-0596-9

Read more at: http://phys.org/news/2014-01-microalgae-aquatic-decrease-radiopollution-fukushima.html#jCp

More information: Fukuda, S., Shiraiwa, Y., et al. (2013). Global searches for microalgae and aquatic plants that can eliminate radioactive cesium, iodine and strontium from the radio-polluted aquatic environment: a bioremediation strategy. Journal of Plant Research. DOI: 10.1007/s10265-013-0596-9

Read more at: http://phys.org/news/2014-01-microalgae-aquatic-decrease-radiopollution-fukushima.html#jCp
Post a Comment