Identification of chemical composition of CRUD depositing on fuel surface of a boiling water reactor (BWR-6) plant

Tsai, Tsung‐Lin; Lin, Ting-Yun; Su, Te-Yen; Wei, Hung-Ju; Men, Lee-Chung; Wen, Tung‐Jen

doi:10.1016/j.egypro.2011.12.1025

Cited by 11 publications

(1 citation statement)

References 7 publications

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“…As a result of this process and subsequent hydrolysis, iron oxide/hydroxide particles are formed in the condensation water [1,2]. Such particles, generally called "crud", have a mixed chemical composition, which is mainly represented by iron and, to a lesser extent, chromium, nickel, cobalt, and zinc [3,4]. Crud particles tend to adsorb short-lived radionuclides of the corrosion group [3], which leads to the risk of receiving increased dose loads for maintenance personnel.…”

Section: Introductionmentioning

confidence: 99%

Electro-Decontamination of Spent Ion Exchange Resins Contaminated with Iron Oxide Deposits under Dynamic Conditions

2021

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A method for the electro-decontamination of spent ion exchange resin contaminated with hematite under dynamic conditions using sulfuric acid solutions has been suggested. It has been shown that decontamination under dynamic conditions excludes the secondary adsorption of radionuclides on ion-exchanger sites. The efficiency of this approach has been compared to that of control experiments without direct current treatment. A positive effect of the introduction of Fe2+ on the rate of dissolution of hematite has been demonstrated. This allows for decreasing the concentration of the sulfuric acid solution without decreasing the decontamination efficiency.

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Section: Introductionmentioning

confidence: 99%

Electro-Decontamination of Spent Ion Exchange Resins Contaminated with Iron Oxide Deposits under Dynamic Conditions

2021

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Application of Radiation Chemistry to Some Selected Technological Issues Related to the Development of Nuclear Energy

2016

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The most important contributions of radiation chemistry to some selected technological issues related to water-cooled reactors, reprocessing of spent nuclear fuel and high-level radioactive wastes, and fuel evolution during final radioactive waste disposal are highlighted. Chemical reactions occurring at the operating temperatures and pressures of reactors and involving primary transients and stable products from water radiolysis are presented and discussed in terms of the kinetic parameters and radiation chemical yields. The knowledge of these parameters is essential since they serve as input data to the models of water radiolysis in the primary loop of light water reactors and super critical water reactors. Selected features of water radiolysis in heterogeneous systems, such as aqueous nanoparticle suspensions and slurries, ceramic oxides surfaces, nanoporous, and cement-based materials, are discussed. They are of particular concern in the primary cooling loops in nuclear reactors and long-term storage of nuclear waste in geological repositories. This also includes radiation-induced processes related to corrosion of cladding materials and copper-coated iron canisters, dissolution of spent nuclear fuel, and changes of bentonite clays properties. Radiation-induced processes affecting stability of solvents and solvent extraction ligands as well oxidation states of actinide metal ions during recycling of the spent nuclear fuel are also briefly summarized.

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Characterization of crud deposited on fuel rods under HWC environment in Kuosheng Nuclear Power Plant

Tsai

Wang

et al. 2016

NUCL SCI TECH

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Identification of chemical composition of CRUD depositing on fuel surface of a boiling water reactor (BWR-6) plant

Cited by 11 publications

References 7 publications

Electro-Decontamination of Spent Ion Exchange Resins Contaminated with Iron Oxide Deposits under Dynamic Conditions

Electro-Decontamination of Spent Ion Exchange Resins Contaminated with Iron Oxide Deposits under Dynamic Conditions

Application of Radiation Chemistry to Some Selected Technological Issues Related to the Development of Nuclear Energy

Characterization of crud deposited on fuel rods under HWC environment in Kuosheng Nuclear Power Plant

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