Patent Number: 056132395
Section: claims

1. A method for decomposing an organic solution containing radioactive metal ions, which comprises: forming a solution containing radioactive metal ions by applying a solution composed of a chelating solution and/or an organic acid to radioactive metals laden with radioactivity;  adding an alkaline agent to the formed solution to elevate electrical conductivity thereof; and  electrolyzing the solution elevated in electrical conductivity by an electrolytic device.  forming a solution containing radioactive metal ions by applying a solution composed of a chelating solution and/or an organic acid to radioactive metals laden with radioactivity;  adding an alkaline agent to the formed solution to elevate electrical conductivity thereof;  electrolyzing the solution elevated in electrical conductivity by an electrolytic device to generate therein metal hydroxides which are little soluble in water; and  filtering the resultant solution to separate metal hydroxides as a filter cake from the filtrate.  forming a solution containing radioactive metal ions by applying a solution composed of a chelating solution and/or an organic acid to radioactive metals laden with radioactivity;  adding an alkaline agent to the formed solution to elevate electrical conductivity thereof and to generate therein metal hydroxides which are little soluble in water;  filtering the resultant solution to separate the metal hydroxides as a filter cake from the filtrate;  electrolyzing the filtrate by an ectrolytic device to further generate therein metal hydroxides which are little soluble in water; and  filtering the resultant filtrate to separate the additional metal hydroxides as a filter cake from the filtrate.  an electrical conduction tank in which an alkaline agent is fed to a metal solution composed of a chelating solution and/or an organic acid having dissolved therein radioactive metals laden with radioactivity, to elevate electrical conductivity thereof; and  an electrolytic device located at a later stage than the electrical conduction tank to electrolyze the metal solution elevated in electrical conductivity.  an electrical conduction tank in which an alkaline agent is fed to a metal solution composed of a chelating solution and/or an organic acid containing radioactive metals laden with radioactivity, to elevate electrical conductivity thereof;  an electrolytic device located at a later stage than the electrical conduction tank to electrolyze the metal solution elevated in electrical conductivity; and  a filtration device positioned at a stage next to and communicating with the electrolyzation device. 2. A method for collecting radioactive metals by way of dissolution, which comprises: 3. A method for collecting radioactive metals by way of dissolution, which comprises: 4. A method according to claim 3, wherein the filtrate separated by filtration after electrolysis is treated with an ultraviolet irradiation device to further decompose organic matter contained in the filtrate. 5. A method according to claim 4, wherein the matter decomposed by irradiation of ultraviolet rays is separated by reverse osmosis from the filtrate. 6. A method according to claim 4, wherein the matter decomposed by irradiation of ultraviolet rays is separated by use of ion-exchange resin from the filtrate. 7. An apparatus for decomposing an organic solution containing radioactive metals, which comprises: 8. An apparatus for collecting radioactive metals, which comprises: 9. Apparatus for collecting radioactive metals according to claim 8, wherein a filtration device is disposed between the electrical conduction tank and the electrolytic device. 10. Apparatus for collecting radioactive metals according to claim 8 or 9, wherein the filtration device is provided with an ultraviolet irradiation device having a separation device, at a later stage thereof for ultraviolet irradiation and separation treatment of the filtrate therefrom. 11. Apparatus for collecting radioactive metals according to claim 10, wherein the separation device is of a reverse osmosis type. 12. Apparatus according to claim 10, wherein the separation device is of an ion-exchange resin type.