Title:
ELECTROLYTIC DECONTAMINATING METHOD FOR RADIOACTIVELY CONTAMINATED METAL
Document Type and Number:
Japanese Patent JPS5885000
Kind Code:
A
Abstract:
PURPOSE:To elute the surfaces of contaminated metals uniformly and efficiently by moving assembled cathodes consisting of plural cathodes provided with insulating spacers to the contaminated metal side of anodes and making the surfaces of the assembled electrodes coincident approximately with the shapes of the anodes. CONSTITUTION:Air 25 is blown into a piping 21 to pressurize and pack the air into the spacings 17 formed of bellows pipes 16. Electrodes 14 move together with spacers 15 to a contaminated metal 12 side by overcoming the tensile force of coil springs 20 and stops when the spacers 15 abut on the metal 12. At the point of this time, valves 22 are closed to stop blasting. If the air is blown into the spaces 17 formed of the pipes 16 in such a way, all the electrodes 14 can be disposed in the positions coinciding with the surface shape of the metal 12 via the spacers 15. An electrolyte 1 is filled only in the spaces 17 and is required in les amt. Thus, current density is made uniform with a less amt. of the electrolyte 1 and the effective electrolysis is accomplished.
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Inventors:
TANAKA AKIO
HOTSUTA MASAMI
OONUMA TSUTOMU
KATOU KOUJI
HOTSUTA MASAMI
OONUMA TSUTOMU
KATOU KOUJI
Application Number:
JP18350381A
Publication Date:
May 21, 1983
Filing Date:
November 16, 1981
Export Citation:
Assignee:
HITACHI PLANT ENG & CONSTR CO
International Classes:
G21F9/28; C25F1/00; C25F3/00; C25F7/00; G21F9/00; G21F9/30; (IPC1-7): C25F1/00
Attorney, Agent or Firm:
Tatsuyuki Unuma