radioactive-waste disposal

radioactive-waste disposal

[¦rād·ē·ō′ak·tiv ¦wāst di′spō·zəl]
(nucleonics)
The disposal of waste radioactive materials and of equipment contaminated by radiation; the two basic disposal methods are concentration for burial underground or in the sea, and dilution for controlled dispersion; reprocessing of reactor fuel is a major source of radioactive waste.
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Johan Swahn of Swedish nuclear-repository watchdog MKG believes that the new software has little or nothing to contribute to research on radioactive-waste disposal. He says that experiments carried out in underground laboratories continue to provide "a lot of surprises".
But the very mysteries that lure explorers ever deeper make the ocean vulnerable to human intervention--undersea mining, saturation fishing, and 45 years of radioactive-waste disposal. We have only the sketchiest understandings of the deep sea's structure, Broad says, "much less of the alterations being made by deep fishing and planetary heating and the seventy thousand or so synthetic chemicals that we have managed to inject into the global environment.
The traces were found on three of 800 barrels of the waste that was brought to a low-level radioactive-waste disposal center in Rokkasho transported from the Hamaoka nuclear power plant in the town of Hamaoka, Shizuoka Prefecture, company officials said.
These range from lifting the moratorium to establishing a permanent ban on radioactive-waste disposal at sea.

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