Impact of microbial processes on the safety of deep geological repositories for radioactive waste

MA Ruiz-Fresneda, MF Martinez-Moreno… - Frontiers in …, 2023 - frontiersin.org
To date, the increasing production of radioactive waste due to the extensive use of nuclear
power is becoming a global environmental concern for society. For this reason, many …

Partial Purification of Anthocyanins (Brassica oleracea var. Rubra) from Purple Cabbage Using Natural and Modified Clays as Adsorbent

DT Guimarães, LMR Mendes… - Adsorption Science …, 2023 - journals.sagepub.com
This research is aimed at evaluating strategies for the adsorption and recovery of
anthocyanins present in purple cabbage using natural and modified clays as adsorbent. In …

[HTML][HTML] Impact of compacted bentonite microbial community on the clay mineralogy and copper canister corrosion: a multidisciplinary approach in view of a safe Deep …

MF Martinez-Moreno, C Povedano-Priego… - Journal of Hazardous …, 2023 - Elsevier
Abstract Deep Geological Repository (DGR) is the preferred option for the final disposal of
high-level radioactive waste. Microorganisms could affect the safety of the DGR by altering …

Green synthesis and biotransformation of amorphous Se nanospheres to trigonal 1D Se nanostructures: impact on Se mobility within the concept of radioactive waste …

MAR Fresneda, JD Martín, JG Bolívar… - Environmental …, 2018 - pubs.rsc.org
Nuclear waste containing radionuclides including selenium isotopes, Se79, will be disposed
of in future deep geological repositories. Due to the long lifetime of these radioisotopes …

Effects of a simulated gap on anisotropic swelling pressure of compacted GMZ bentonite

LY Jia, YG Chen, WM Ye, YJ Cui - Engineering geology, 2019 - Elsevier
Gaomiaozi (GMZ) bentonite is a promising buffer material for Chinese high-level radioactive
waste (HLW) disposal, and will be either compacted in situ or used as dense prefabricated …

Chemical and structural characterization of Se IV biotransformations by Stenotrophomonas bentonitica into Se 0 nanostructures and volatiles Se species

MA Ruiz-Fresneda, AS Eswayah… - Environmental …, 2020 - pubs.rsc.org
The deep geological repository (DGR) system is widely accepted as the solution for the
disposal of radioactive wastes in the future. This concept is based on several natural and …

Unlocking the key role of bentonite fungal isolates in tellurium and selenium bioremediation and biorecovery: Implications in the safety of radioactive waste disposal

MA Ruiz-Fresneda, M Morales-Hidalgo… - Science of the Total …, 2024 - Elsevier
Research on eco-friendly bioremediation strategies for mitigating the environmental impact
of toxic metals has gained attention in the last years. Among all promising solutions …

Formation of CASH phases from the interaction between concrete or cement and bentonite

R Fernández, AI Ruiz, J Cuevas - Clay Minerals, 2016 - cambridge.org
Concrete and bentonite are being considered as engineered barriers for the deep
geological disposal of high-level radioactive waste in argillaceous rocks. Three …

[HTML][HTML] Impact of anoxic conditions, uranium (VI) and organic phosphate substrate on the biogeochemical potential of the indigenous bacterial community of bentonite

C Povedano-Priego, F Jroundi, M Lopez-Fernandez… - Applied clay …, 2022 - Elsevier
Uranium (U) is the most hazardous radionuclide in nuclear waste and its harmful effects
depend on its mobility and bioavailability. Microorganisms can affect the speciation of …

[HTML][HTML] Microbial influence in Spanish bentonite slurry microcosms: Unveiling a-year long geochemical evolution and early-stage copper corrosion related to nuclear …

MF Martinez-Moreno, C Povedano-Priego… - Environmental …, 2024 - Elsevier
The deep geological repository (DGR) concept consists of storing radioactive waste in metal
canisters, surrounded by compacted bentonite, and placed deeply into a geological …