Sorption of 137Cs and 60Co on Titanium Oxide Films in Light Water Reactor Primary Circuit Environment

Standard

Sorption of 137Cs and 60Co on Titanium Oxide Films in Light Water Reactor Primary Circuit Environment. / Скрипкин, Михаил Юрьевич ; Глухоедов, Никита Алексеевич ; Орлов, Сергей Николаевич; Епимахов, Виталий Николаевич; Змитродан, Александр; Змитродан, Григорий; Цапко, Анастасия.

In: Materials, Vol. 15, No. 12, 4261, 16.06.2022.

Research output: Contribution to journal › Article › peer-review

BibTeX

@article{ef5a734896084670919ee31c28cb6182,

title = "Sorption of 137Cs and 60Co on Titanium Oxide Films in Light Water Reactor Primary Circuit Environment",

abstract = "This paper discusses the processes of the long-lived 137Cs and 60Co immobilization on titanium surfaces in simulated light water reactor primary circuit environments. This study is prompted by numerous problems in both the maintenance of equipment during reactor operation and the dismantling of the reactor after the completion of the operation, which is associated with contamination of working surfaces with long-lived radionuclides. The composition of the oxide films formed on the surface of commercial titanium alloy ΠT-3B has been studied with specimens prepared in autoclave test conditions and surface samples from the pipeline sections to which the primary coolant was applied. These films on the coolant pipeline surface consist of a titanium dioxide layer tightly adhered to the pipeline metal surface and weakly fixed deposits—crystallites comprised of titanium oxides and other corrosion products (oxides and hydrated oxides of iron, nickel, chromium etc.). The radionuclide composition of the samples was studied by gamma-spectrometry. It is shown that the mechanism of titanium-surface contamination with 137Cs is by physisorption, contamination level increases upon the presence of dispersed particles. For 60Co, both sorption and deposition onto surfaces are observed. ",

keywords = "light water nuclear reactor, long-lived radionuclides, sorption, titanium alloys",

author = "Скрипкин, {Михаил Юрьевич} and Глухоедов, {Никита Алексеевич} and Орлов, {Сергей Николаевич} and Епимахов, {Виталий Николаевич} and Александр Змитродан and Григорий Змитродан and Анастасия Цапко",

note = "Publisher Copyright: {\textcopyright} 2022 by the authors. Licensee MDPI, Basel, Switzerland.",

year = "2022",

month = jun,

day = "16",

doi = "10.3390/ma15124261",

language = "English",

volume = "15",

journal = "Materials",

issn = "1996-1944",

publisher = "MDPI AG",

number = "12",

}

RIS

TY - JOUR

T1 - Sorption of 137Cs and 60Co on Titanium Oxide Films in Light Water Reactor Primary Circuit Environment

AU - Скрипкин, Михаил Юрьевич

AU - Глухоедов, Никита Алексеевич

AU - Орлов, Сергей Николаевич

AU - Епимахов, Виталий Николаевич

AU - Змитродан, Александр

AU - Змитродан, Григорий

AU - Цапко, Анастасия

PY - 2022/6/16

Y1 - 2022/6/16

N2 - This paper discusses the processes of the long-lived 137Cs and 60Co immobilization on titanium surfaces in simulated light water reactor primary circuit environments. This study is prompted by numerous problems in both the maintenance of equipment during reactor operation and the dismantling of the reactor after the completion of the operation, which is associated with contamination of working surfaces with long-lived radionuclides. The composition of the oxide films formed on the surface of commercial titanium alloy ΠT-3B has been studied with specimens prepared in autoclave test conditions and surface samples from the pipeline sections to which the primary coolant was applied. These films on the coolant pipeline surface consist of a titanium dioxide layer tightly adhered to the pipeline metal surface and weakly fixed deposits—crystallites comprised of titanium oxides and other corrosion products (oxides and hydrated oxides of iron, nickel, chromium etc.). The radionuclide composition of the samples was studied by gamma-spectrometry. It is shown that the mechanism of titanium-surface contamination with 137Cs is by physisorption, contamination level increases upon the presence of dispersed particles. For 60Co, both sorption and deposition onto surfaces are observed.

AB - This paper discusses the processes of the long-lived 137Cs and 60Co immobilization on titanium surfaces in simulated light water reactor primary circuit environments. This study is prompted by numerous problems in both the maintenance of equipment during reactor operation and the dismantling of the reactor after the completion of the operation, which is associated with contamination of working surfaces with long-lived radionuclides. The composition of the oxide films formed on the surface of commercial titanium alloy ΠT-3B has been studied with specimens prepared in autoclave test conditions and surface samples from the pipeline sections to which the primary coolant was applied. These films on the coolant pipeline surface consist of a titanium dioxide layer tightly adhered to the pipeline metal surface and weakly fixed deposits—crystallites comprised of titanium oxides and other corrosion products (oxides and hydrated oxides of iron, nickel, chromium etc.). The radionuclide composition of the samples was studied by gamma-spectrometry. It is shown that the mechanism of titanium-surface contamination with 137Cs is by physisorption, contamination level increases upon the presence of dispersed particles. For 60Co, both sorption and deposition onto surfaces are observed.

KW - light water nuclear reactor

KW - long-lived radionuclides

KW - sorption

KW - titanium alloys

UR - http://www.scopus.com/inward/record.url?scp=85132572744&partnerID=8YFLogxK

UR - https://www.mendeley.com/catalogue/270fb8d9-6507-30b9-9ea5-c2c8cd7b3b5b/

U2 - 10.3390/ma15124261

DO - 10.3390/ma15124261

M3 - Article

VL - 15

JO - Materials

JF - Materials

SN - 1996-1944

IS - 12

M1 - 4261

ER -

ID: 97524845