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originally posted by: EternalShadow
originally posted by: Bluntone22
I don't think they know what else to do with the water.
From what I understand, the technology needed to clean it up doesn't even exist.
A year later, scientists began finding tsunami debris with living creatures still attached, washing up on the shores of Hawaii and the western US coast from Alaska down to California.
"Many hundreds of thousands of individuals were transported and arrived in North America and the Hawaiian islands - most of those species were never before on our radar as being transported across the ocean on marine debris," lead author Prof James Carlton, from Williams College and Mystic Seaport, told BBC News
"A few years ago we had to create one new tank every two or three days but now we need to increase one new tank every seven to 10 days, so in that sense we think it is progress, to a certain degree, in the sense it is a more stabilised situation," he said.
There are more than 1,000 tanks of contaminated water now at the site — and Government authorities have still not decided what to do with the water.
One of the hydrogen isotopes, deuterium, is widely used in analytical and chemical tracing technologies and, also, as heavy water required in thousands of tons for operation of nuclear power stations.
The heaviest isotope, tritium, is radioactive and needs to be safely removed as a byproduct of electricity generation at nuclear fission plants. Future nuclear technology is based on fusion of the two heavy isotopes.
The current separation technologies for production of heavy water are extremely energy intensive, and have presented a major scientific and industrial problem. Now graphene promises do so efficiently.
The discovery makes monolayers of graphene and boron nitride attractive as separation membranes to enrich mixtures of deuterium and tritium.
Furthermore, the researchers showed that the separation is fully scalable. Using chemical-vapor-deposited (CVD) graphene, they built centimetre-sized devices to effectively pump out hydrogen from a mixture of deuterium and hydrogen.
Dr Marcelo Lozada-Hidalgo, University of Manchester postdoctoral researcher and first author of the paper, said: "This is really the first membrane shown to distinguish between subatomic particles, all at room temperature.