Application Progress of Deinococcus radiodurans in Biological Treatment of Radioactive Uranium-Containing Wastewater

Li, Shanshan; Zhu, Qiqi; Luo, Jiaqi; Shu, Yangzhen; Guo, Kexin; Xie, Jingxi; Xiao, Fangzhu; He, Shuya

doi:10.1007/s12088-021-00969-9

Cited by 30 publications

(5 citation statements)

References 77 publications

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“…5 ), showed antagonistic abundance in ecological disaggregation between La Punta and La Brava, likely due to abiotic factors. In genomic and metagenomic studies, the phylum Acidobacteria was predicted to possess relevant capabilities, such as using nitrite as an N source ( 54 ) and expressing multiple active transporters ( 55 , 56 ). In the above studies, usable sources of nitrogen, such as nitrite, are present in the La Punta–La Brava lake system ( Table 1 ) and are hypothetically usable by these taxa.…”

Section: Discussionmentioning

confidence: 99%

Compositional Changes in Sediment Microbiota Are Associated with Seasonal Variation of the Water Column in High-Altitude Hyperarid Andean Lake Systems

et al. 2023

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In this study, we analyzed the persistence of the water column through satellite images and physicochemical characterization to investigate the composition and diversity in High Andean Lake Systems in a hyperarid environment. In addition to the persistence of the water column, this approach can be used to analyze changes in the morphology of saline accumulations and persistence of snow or ice; for example, for establishing variable plant cover over time and evaluating the microbiota associated with soils with seasonal changes in plants.

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Section: Discussionmentioning

confidence: 99%

Compositional Changes in Sediment Microbiota Are Associated with Seasonal Variation of the Water Column in High-Altitude Hyperarid Andean Lake Systems

et al. 2023

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“…Precipitation occurred also during high doses of ionizing radiation and in the presence of cesium and strontium, which are often present in intermediate and low level liquid radioactive waste ( Kulkarni et al, 2013 ). The advantages of using D. radiodurans in treating radioactive waste have recently been reviewed in Li et al (2021) . Uranium precipitation with PhoK-expressing recombinant E. coli DH5α and D. radiodurans was also examined in a carbonate-deficient condition at pH 6.8 (GC 1) versus a carbonate-abundant condition at pH 9 (GC 2).…”

Section: Phosphatasesmentioning

confidence: 99%

Molecular Mechanisms Underlying Bacterial Uranium Resistance

Rogiers

Williamson²,

Leys³

et al. 2022

Front. Microbiol.

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Environmental uranium pollution due to industries producing naturally occurring radioactive material or nuclear accidents and releases is a global concern. Uranium is hazardous for ecosystems as well as for humans when accumulated through the food chain, through contaminated groundwater and potable water sources, or through inhalation. In particular, uranium pollution pressures microbial communities, which are essential for healthy ecosystems. In turn, microorganisms can influence the mobility and toxicity of uranium through processes like biosorption, bioreduction, biomineralization, and bioaccumulation. These processes were characterized by studying the interaction of different bacteria with uranium. However, most studies unraveling the underlying molecular mechanisms originate from the last decade. Molecular mechanisms help to understand how bacteria interact with radionuclides in the environment. Furthermore, knowledge on these underlying mechanisms could be exploited to improve bioremediation technologies. Here, we review the current knowledge on bacterial uranium resistance and how this could be used for bioremediation applications.

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“…The extensive application of nuclear fission technology will inevitably produce waste. − This waste is known as “nuclear waste” or “radioactive waste”. Uranium-containing wastewater (UCW) is one of them. − UCW is highly migratory and biological toxicity. , So far, several types of technologies have been applied to effectively dispose of UCW, including ion exchange, , adsorption, − membrane filtration, , solid-phase extraction, , chemical precipitation, , bioreductive adsorption processes, , and so on. Among the various available techniques, adsorption processes have gained significant popularity in the treatment of uranium in aqueous solutions .…”

Section: Introductionmentioning

confidence: 99%

“…4−6 UCW is highly migratory and biological toxicity. 7,8 So far, several types of technologies have been applied to effectively dispose of UCW, including ion exchange, 9,10 adsorption, 10−12 membrane filtration, 13,14 solidphase extraction, 15,16 chemical precipitation, 17,18 bioreductive adsorption processes, 4,19 and so on. Among the various available techniques, adsorption processes have gained significant popularity in the treatment of uranium in aqueous solutions.…”

Section: Introductionmentioning

confidence: 99%

Research on the Properties of Wasteforms after Direct Involvement of Uranium-Containing Silica Gel in Glass Network Formation

Qiu,

Cheng,

et al. 2024

Inorg. Chem.

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Uranium-containing silica gel (UCSG) is a secondary waste generated during the advanced treatment of nuclear wastewater. In order to reduce the growing storage pressure for UCSG, from the perspective of building a borosilicate glass network, UCSG was used to replace SiO 2 in the glass-cured formula to directly achieve the immobilization of UCSG. SEM-EDS results showed that uranium was uniformly distributed in the matrix, and the maximum solid solubility of UCSG (two components: silica gel and uranyl ions) in the formula was as high as 55 wt %. At the same time, TG-MS proved that silica gel lost OH groups (down about 4.61 wt %) and formed Si-O-Si bond by condensation. FT-IR and XPS proved a change in the number of Si-O-Si bond, and new Si-O-B and Si-O-Al bond appeared on the spectrum. This was evidence that silica gel could self-involved participate in the construction of glass networks. EPR analysis obtained the changes in the coordination environment of U atom, the U atom decreased spin electrons number in the glass than in uranyl crystals. The glass also has good physical properties (hardness: 6.51 ± 0.23 GPa; density: 2.3977 ± 0.0056 g/cm 3 ) and chemical durability (normalized leaching rate: LR U = 2.34 × 10 −4 ± 2.05 × 10 −6 g•m 2 •days −1 after 42 days), this research provided tactics for simple treatment of uranium-containing silica gel in one step.

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Application Progress of Deinococcus radiodurans in Biological Treatment of Radioactive Uranium-Containing Wastewater

Cited by 30 publications

References 77 publications

Compositional Changes in Sediment Microbiota Are Associated with Seasonal Variation of the Water Column in High-Altitude Hyperarid Andean Lake Systems

Compositional Changes in Sediment Microbiota Are Associated with Seasonal Variation of the Water Column in High-Altitude Hyperarid Andean Lake Systems

Molecular Mechanisms Underlying Bacterial Uranium Resistance

Research on the Properties of Wasteforms after Direct Involvement of Uranium-Containing Silica Gel in Glass Network Formation

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