モール状捕集材を用いた海水ウラン捕集の実規模システムの検討

Abstract

The density of uranium in the seawater is only 3 mg/m3, but its total amount is 4.5 billion tons. In the last report, the braid type adsorbent was proposed with its mooring system for the collection of the uranium from the sea. And, it was shown that a high performance of the adsorbent and a big fall in weight of the mooring system are feasible and there's no problem of the adhered creature. In this report, it is shown that 134 km2 of mooring basin is needed for annual product of 1200 tons of uranium. In addition, 6000 km2 and over of suitable basin for the collection of the uranium is shown between Okinawa Islands and Tosa Bay.