Waste Management in a Hot Laboratory of Japan Atomic Energy Agency – 2: Condensation and Solidification Experiments on Liquid Waste
As a part of STRAD project conducted by JAEA, condensation of radioactive liquid waste containing various chemical compounds using reverse osmosis (RO) membrane filter was examined for efficient and safety treatment of the liquid wastes accumulated inside hot laboratories. NH4+ ion in the feed solution was successfully concentrated, and NH4+ ion involved in the effluents became lower than target value; 100 ppm. Solidification of simulated aqueous and organic liquid wastes was also tested. Those liquids were successfully solidified by adding cement or coagulants. Nevertheless, optimization in materials for confinement of chemicals is required for long time storage of the final solidified wastes.
Digital Object Identifier (DOI): doi.org/10.5281/zenodo.2643902Procedia APA BibTeX Chicago EndNote Harvard JSON MLA RIS XML ISO 690 PDF Downloads 656
 Sou Watanabe et al., “Overview of STRAD project for systematic treatments of radioactive liquid wastes generated in nuclear facilities”, Proc. DEM2018, France, Avignon, October22-24, 2018.
 Sou Watanabe et al, “Treatments of Radioactive Waste Solutions Generated in a Laboratory of Japan Atomic Energy Agency”, Book of Abstract of 55th Annual Meeting on Hot Laboratories and Remote Handling -HOTLAB2018, Finland, Helsinki, Sep.17-19, 2018
 Haruka Aihara et al., “Development of treatment method for analytical waste solutions in STRAD project (1) Oxidative decomposition of ammonium ion with catalyst”, Proc. DEM2018, France, Avignon, October22-24, 2018.
 Noriko Asanuma et al., “Development of treatment method for analytical waste solutions in STRAD project (2) Ammonium ion adsorption onto zeolites”, Proc. DEM2018, France, Avignon, Oct.22-24, 2018.
 Haruaki Matsuura et al., “Development of treatment method for analytical waste solutions in STRAD project (3) Separation of ammonia by vaporization”, Proc. DEM2018, France, Avignon, Oct.22-24, 2018.
 N. Nakazawa, M. Akeo, M. Sato and T. Okubo, “Vapor-Liquid Equilibrium of Dilute Ammonia-Saline Water System”, Bulletin of the Society of Sea Water Science, Japan, 38, 6, 348-352 (1984) in Japanese.
 Kojima, T., “Alanine Dosimeters using polymers as binders”, International Journal of Radiation Applications and Instrumentation. Part A. Applied Radiation and Isotopes, Vol. 37, Iss.6, 1986, pp.517-520
 Kojima, T., “Orientation Effects on ESR Analysis of Alanine-polymer Dosimeters”, Applied Radiation and Isotopes, Vol. 46, Iss.12, 1986, pp.1407-1411
 Y. Koma et al, “Extraction chromatography for Am and Cm recovery in engineering scale”, Proc. ATALANTE2008, France, Montpellier, May 19-23, 2008.
 S. Watanabe et al, “Safety operation of chromatography column system with discharging hydrogen radiolytically generated”, EPJ Nuclear Sci. Technol. 1, 9, 1-8 (2015).