TREATMENT METHOD OF RADIOACTIVE WASTE LIQUID

PURPOSE: To provide a treatment method, of a radioactive waste liquid, in which a secondary waste liquid is hardly generated. CONSTITUTION: A radioactive waste liquid such as a decontaminated waste liquid or the like generated by dissolving the surface of a radioactive metal waste by means of a deco...

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Bibliographische Detailangaben
1. Verfasser:	NISHIWAKI HITOSHI
Format:	Patent
Sprache:	eng
Schlagworte:	DECONTAMINATION ARRANGEMENTS THEREFOR NUCLEAR ENGINEERING NUCLEAR PHYSICS PHYSICS PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT TREATING RADIOACTIVELY CONTAMINATED MATERIAL
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Beschreibung
Zusammenfassung:	PURPOSE: To provide a treatment method, of a radioactive waste liquid, in which a secondary waste liquid is hardly generated. CONSTITUTION: A radioactive waste liquid such as a decontaminated waste liquid or the like generated by dissolving the surface of a radioactive metal waste by means of a decontamination liquid 1 composed of a mixed acid of nitric acid, hydrochloric acid and hydrofluoric acid is neutralized 2, and metal ions are precipitated and separated. Then, the waste liquid is separated into the mixed acid, an alkali and demineralized water by an electrodialyzer 3 using a bipolar membrane so as to be collected. In addition, a precipitate is melted so as to be changed into a metal block-shaped solidified waste.