Study on ultrasonic electrochemical decontamination

Lu, Congde; Tang, Qingfeng; Chen, Min; Zhou, Xianyi; Zheng, Zeyu

doi:10.1007/s10967-018-5717-4

Cited by 12 publications

(3 citation statements)

References 17 publications

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“…Many investigation reported that the formation and collapse of ultrasonic microbubbles exert remarkable influence on the chemical and physical properties of most substances [17]. Because of the development of cheap and reliable ultrasonic wave generators, the application of ultrasonic wave technology is growing in the fields of chemistry and chemical engineering, especially in oil extraction [13], precipitation and crystallization [18,19], materials preparation [20][21][22] and other fields [23][24][25][26][27]. Song et al [28], studied the use of ultrasound for enhancing yield of light oil in the thermal cracking of residual oil, the results indicated that the proposed ultrasonic-assisted technology can significantly decrease the power consumption compared to the traditional delayed coking process.…”

Section: Introductionmentioning

confidence: 99%

Lithium carbonate recovery from lithium-containing solution by ultrasound assisted precipitation

Zhao

Zhang

Cao

et al. 2019

Ultrasonics Sonochemistry

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Section: Introductionmentioning

confidence: 99%

Lithium carbonate recovery from lithium-containing solution by ultrasound assisted precipitation

Zhao

Zhang

Cao

et al. 2019

Ultrasonics Sonochemistry

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“…There are decontamination methods such as mechanical [ 6 , 7 ], high-pressure water [ 6 ], laser [ 4 , 8 ], ultrasonic [ 9 , 10 ], reagent washing [ 11 , 12 ], electrochemistry [ 13 ], gel [ 5 , 14 ], and peelable film [ 15 , 16 ], each of which have advantages and drawbacks, as shown in Table S1 . However, these decontamination technologies are difficult to achieve effective and low-cost decontamination when dealing with unconventional surfaces such as the inner surfaces of pipes and the interior of large cavities, vertical walls, and ceilings [ 5 , 17 ].…”

Section: Introductionmentioning

confidence: 99%

Effects of Different Types of Stabilizers on the Properties of Foam Detergent Used for Radioactive Surface Contamination

Zhang,

Liang,

et al. 2023

Molecules

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Compared with high-pressure water and reagent washing decontamination, foam decontamination has a promising application due to its ability to significantly reduce the volume of radioactive waste liquids and effectively decontaminate the inner surface of the pipes, the interior of the large cavities, and the vertical walls. However, the foam is less stable, leading to a low decontamination rate. Currently, three main types of stabilizers with different stabilizing mechanisms, namely nanoparticles, polymers, and cosurfactants, are used to improve foam stability and thus increase the decontamination rate. Nanosilica (NS), xanthan gum (XG), and n-tetradecanol (TD) were used as typical representatives of nanoparticles, polymers, and cosurfactants, respectively, to improve the stability of the foam detergent with pH < 2 and chelating agents. The differences in the effects of these three types of stabilizers on foam properties were investigated. Although NS, XG, and TD all increase the half-life of the foam from 7.2 min to about 40 min, the concentration of TD is much lower than that of NS and XG in the foaming solution, and TD foaming solution has the highest foaming ratio. Moreover, TD can markedly lower the surface tension, resulting in a significant reduction of the wetting contact angle on the surfaces of glass, ceramic tile, stainless steel, and paint, while NS and XG cannot signally change the surface tension and have no obvious effect on the wetting contact angle. At low shear rates, TD can increase the apparent viscosity of foam by two orders of magnitude, and the wall-hanging time of the foam on the vertical wall is more than 30 min. In contrast, NS and XG cause a limited increase in the apparent viscosity of the foam, and the wall-hanging times are both less than 5 min. In addition, TD foaming solution has excellent storage stability, and the storage time has no obvious effect on the performance of the foam. And after only three days of storage, NS undergoes severe agglomeration and precipitation in the foaming solution, resulting in a complete loss of the stabilizing effect. After 90 days of storage, the half-life of XG foam decreases by 26%. For simulated radioactive uranium contamination on both horizontal and vertical surfaces, TD can significantly improve the decontamination rate, especially for vertical surfaces, where TD can increase the single decontamination rate by more than 50%.

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“…Nowadays, various methods have been reported to remove radioactive decontamination, such as high-pressure water washing [ 2 , 3 ], mechanical grinding [ 4 ], ultrasound [ 5 ], electrochemical methods [ 6 ], gel [ 7 , 8 ] and foam [ 9 ]. Their application is limited by costs, the type of contamination, secondary pollutants and other factors.…”

Section: Introductionmentioning

confidence: 99%

A Sprayable and Visible Light Rapid-Cured Strippable Film for Surface Radioactive Decontamination

Zhang

Zhang²,

Zhu³

et al. 2022

Polymers

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Strippable film is effective for removing radioactive contamination. However, it still has some limitations, such as the long curing time (about 30 min~24 h) and the requirement of organic solvents. To address these issues, we report a simple protocol to prepare strippable decontamination films using liquid polybutadiene (LPB) and tert-butyl acrylate (TBA) as the raw materials without solvent and using camphorquinone/ethyl 4-dimethylaminobenzoate (CQ/EDB) as a photoinitiator, where the film was formed under household LED panel light or daylight irradiation for about 540 s. After a thorough study of viscosity, real-time Fourier transform infrared (RT-FTIR spectra), gel and volatile organic compound (VOC) contents, mechanical properties and decontamination efficiency, the optimum composition and curing conditions were determined for the decontamination strippable film. VOC content is as low as 12.7 ± 0.7% and the resultant strippable film exhibits good mechanical performances with a tensile strength of up to 5.4 ± 0.4 MPa and elongation of up to 66.6 ± 13%. Most important, the decontamination efficiencies of this strippable film for 133CsCl on glass, ceramic and metal surfaces reach up to 98.1%, 94.3% and 97.6%, respectively.

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Study on ultrasonic electrochemical decontamination

Cited by 12 publications

References 17 publications

Lithium carbonate recovery from lithium-containing solution by ultrasound assisted precipitation

Lithium carbonate recovery from lithium-containing solution by ultrasound assisted precipitation

Effects of Different Types of Stabilizers on the Properties of Foam Detergent Used for Radioactive Surface Contamination

A Sprayable and Visible Light Rapid-Cured Strippable Film for Surface Radioactive Decontamination

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