| 摘要 |
PURPOSE:To remove efficiently the cobalt dissolved in water by providing magnetically held powder manganese ferrite between magnetic holders and a piping which is connected to the lower part of a hollow column and introduces water contg. cobalt into the column, etc. CONSTITUTION:The filtrate from a water cleaning up system of a nuclear reactor is introduced through a piping 12 and an opened automatic two-way valve 13 into an adsorption column 14 from the bottom thereof. Powder manganese ferrite 17 is magnetically held in the spaces between the magnetic holders 16 disposed uniformly in the column 14, and when the reactor water introduced into the column ascends in the adsorption column, the water contacts the magnetically held ferrite 17 and the cobalt ions in the reactor water are adsorbed and removed. The insoluble corrosive components in the reactor water are removed as well by the contact filtration. Since the ferrite 17 is thoroughly held magnetically, there is no outflow at all.
|
