TREATMENT OF SALT COEXISTENT RADIOACTIVE WASTE BY OXINE ADDED ACTIVATED CHARCOAL

• Main Authors: HIGASHIURA NORIKAZU, TSUKAMOTO YUICHI, SUGIMOTO TOMOYA, NAOI YOSUKE
• Format: Patent
• Language: English
• Published: 26.09.1989
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; CHEMISTRY; COMPOUNDS THEREOF; DECONTAMINATION ARRANGEMENTS THEREFOR; INORGANIC CHEMISTRY; METALLURGY; NON-METALLIC ELEMENTS; NUCLEAR ENGINEERING; NUCLEAR PHYSICS; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; PHYSICS; PROTECTION AGAINST X-RADIATION, GAMMA RADIATION, CORPUSCULARRADIATION OR PARTICLE BOMBARDMENT; THEIR RELEVANT APPARATUS; TRANSPORTING; TREATING RADIOACTIVELY CONTAMINATED MATERIAL

PURPOSE:To remove a radioactive substance from a waste liquor without being affected by a high-density salt, by using a powder of oxine added activated charcoal and a filtering processing. CONSTITUTION:A salt coexistent radioactive waste liquor is supplied to a waste liquor neutralizing tank 10 for neutral processing and sent to an adjusting tank 14 with a pump 12. A powder of oxine added activated charcoal is added to the adjusting tank 14 while oxine as coagulating agent is added. A chelating adsorption of metal ions and adsorption and dispersion of a clad are performed with an agitation treatment by an agitator 16. Thereafter, the waste liquor is sent with a pump 18 to a filter 20, after the recovery and discharge of the treated liquid, the oxine added activated charcoal 42 used as secondary waste is transferred to a combustible miscellaneous solid waste incineration equipment 44 to reduce the capacity thereof by burning. This enables removal of a radioactive substance and clad affected by no high density salt.