Showing posts with label fukushima nuclear plant. Show all posts
Showing posts with label fukushima nuclear plant. Show all posts

Fukushima radiation: Sunflowers to the rescue

On April 22, 2011, the area within a 20-kilometer radius of the troubled Fukushima nuclear power plant was designated as no-entry - a dead zone contaminated by high radiation.

However, even the radioactive cesium-137 with a half-life about 30 years can be removed by a natural product - sunflower. Widely known as a source of food (oil, seed) and for its therapeutic purposes, the sunflower has one more remarkable property that is not so well known: it can absorb radioactive cesium in the soil.

Along with rape blossoms, sunflowers were used to decontaminate soil in Ukraine after the 1986 Chernobyl nuclear disaster.

First, the Japan Aerospace Exploration Agency plans to use hyperthermophilic aerobic bacteria to decompose the sunflowers to about 1 percent of their previous volume - slashing the amount of radioactive waste. Then the decomposed plants can be burned to disburse radioactive cesium through smoke.

The sunflower with its large, bright yellow flower head like the sun, brings hope and a bright future to the wasteland of Fukushima!



 
Copyright © 2009 Things Inspire |Designed by Templatemo |Converted to blogger by BloggerThemes.Net