Denitration of radioactive waste with formaldehyde during evaporation in the natural-circulation evaporator

The paper presents a scheme of an experimental full-scale evaporation rig and a description of the tests carried out on it for the evaporation of nitric acid solutions with simultaneous denitration with formaldehyde. The results of work on a full-scale evaporator rig confirmed the possibility of usi...

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Bibliographic Details
Published in:IOP conference series. Earth and environmental science 2021-09, Vol.864 (1), p.12046
Main Authors: Novoselov, I K, Kostromin, K V, Bir, A A, Zilberman, B Y, Mishina, N E, Nikolaev, A Y, Blazheva, I V, Ryabkov, D V, Khomyakov, A P
Format: Article
Language:English
Subjects:
Denitration
Evaporation
Evaporators
Formaldehyde
Nitric acid
Radioactive wastes
Citations: Items that this one cites
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Summary:The paper presents a scheme of an experimental full-scale evaporation rig and a description of the tests carried out on it for the evaporation of nitric acid solutions with simultaneous denitration with formaldehyde. The results of work on a full-scale evaporator rig confirmed the possibility of using evaporation method with simultaneous denitration by formaldehyde in a natural-circulation evaporator with external heating chamber. The dependence of concentration of nitric acid to the molar ratio of formaldehyde to nitric acid was obtained.
ISSN:1755-1307
1755-1315
DOI:10.1088/1755-1315/864/1/012046