Treating acid contaminated with fission products

A process for the treatment of a acid eg HCl contaminated with fission products (eg Cs or Sr) comprises, (i) neutralising the contaminated acid with a base; (ii) removal of radioactive components as one or more metal hydroxide flocs to produce a electrodialysis feedstock; (iii) treating the electrod...

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Bibliographische Detailangaben
Hauptverfasser:	IAN JOHN MASON, NEIL GRAHAM SMART, TIMOTHY NICHOLAS MILNER, GRAHAM VICTOR HUTSON
Format:	Patent
Sprache:	eng
Schlagworte:	CHEMICAL SURFACE TREATMENT CHEMISTRY CLEANING OR DEGREASING OF METALLIC MATERIAL BY CHEMICALMETHODS OTHER THAN ELECTROLYSIS COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATIONOR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL COATING MATERIAL WITH METALLIC MATERIAL COATING METALLIC MATERIAL COMPOUNDS THEREOF DECONTAMINATION ARRANGEMENTS THEREFOR DIFFUSION TREATMENT OF METALLIC MATERIAL INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION INGENERAL INORGANIC CHEMISTRY METALLURGY NON-METALLIC ELEMENTS 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:	A process for the treatment of a acid eg HCl contaminated with fission products (eg Cs or Sr) comprises, (i) neutralising the contaminated acid with a base; (ii) removal of radioactive components as one or more metal hydroxide flocs to produce a electrodialysis feedstock; (iii) treating the electrodialysis feedstock by passing it through a bipolar membrane to produce acid and base; and (iv) recycling the acid. The process is particularly suitable for a closed loop decontamination process. There is also described a plant for use in the process described.