Growth and viability of microorganisms in bentonite and their potential activity in deep geological repository environments

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Microstructural evolution during in-pile irradiation, radiation damage effects and fission products behavior in UO2 nuclear fuel are key issues in understanding and for the modeling of the performance as well as safety characteristics of nuclear fuels in t ...

The activity of subsurface microorganisms can be harnessed for engineering projects. For instance, the Swiss radioactive waste repository design can take advantage of indigenous microorganisms to tackle the issue of a hydrogen gas (H2) phase pressure build ...

High-level waste, stemming from nuclear electricity generation poses significant environmental and safety concerns. Currently, high-level wastes are stored in interim facilities needing constant monitoring and waiting for a definitive solution. Deep geolog ...

Underground storage of radioactive waste is consensually recognised as the safest storage solution by European and worldwide countries relying mainly or partially on nuclear energy production. Over twenty years of research led by the French national agency ...

Nuclear power is a powerful technology that plays an important role in the fight against climate change, and research is continuously engaged in studies that could further improve its safety. After the Fukushima accident, Accident Tolerant Fuels research h ...

Advanced geotechnical engineering applications, such as shale gas extraction, CO2 geological sequestration, and geological radioactive waste storage, often involve various types of shales located at significant depths. Shales exhibit mechanical properties ...

Chlorinated compounds are ubiquitous. However, accumulation of chlorine-containing waste has a negative impact on human health and the environment due to the inapplicability of common disposal methods, such as landfill and incineration. Here we report a su ...

Gamma-ray spectroscopy is an effective technique for radioactive material characterization, routine inventory verification, nuclear safeguards, health physics, and source search scenarios. Gamma-ray spectrometers typically cannot be operated in the immedia ...

Edible robots and robotic food — edible systems that perceive, process and act upon stimulation — could open a new range of opportunities in health care, environmental management and the promotion of healthier eating habits. For example, they could enable ...

The aluminium sector relies on natural gas for the conversion of recycled scrap into new feedstock, which results in substantial atmospheric emissions. Hydric resources are also impacted, as they serve as heat sinks for the waste heat generated during the ...

Noise measurements in light water reactor systems aid in generating validation data for integral point kinetic parameter predictions and generating monitoring parameters for reactor safety and safeguards. The CROCUS zero-power reactor has been used to supp ...

In response to the need for validating high-fidelity deterministic neutronics solvers capable of providing pin-resolved neutron flux distributions, intra-pin reaction rates measurements were performed in the CROCUS experimental reactor. A specially designe ...

Nuclear fusion presents a promising clean energy source to mitigate future energy crises, with magnetic confinement fusion well-positioned to provide a baseload scenario to power future reactors. The unmitigated power exhaust of such reactors threatens its ...

The study explores an original idea that responds to the urgent need to reduce the detrimental environmental impacts of load-bearing floor construction in new buildings by reusing saw-cut reinforced concrete (RC) pieces salvaged from soon-to-be demolished ...

DEMO will have a limited diagnostic set for optimization of reactor performance, and limited diagnostic coverage due to challenging reactor conditions. This poses challenges for control, especially for detachment control which is planned to be performed wi ...

Wyoming-type bentonite is one of the materials to be used as part of the Engineered Barrier System (EBS) in deep geological disposal facilities for the safe disposal of spent nuclear fuel.In the KBS-3 type repository, the canisters containing the spent fue ...

Recent fuel anomalies at a Swiss power plant have motivated the development at PSI of the "Cycle Check-Up" (CHUP) methodology which consists in performing Monte Carlo transport calculations using nuclide compositions and thermal-hydraulic boundary conditio ...

Our planet has been challenged for years by our reckless use of fossil fuels, which has led to the ongoing climate change and energy crisis. The transition to the use of renewable alternative sources has now became urgent and inevitable. The valorization o ...

Opalinus Clay is a fine-grained sedimentary geomaterial with a mineral composition consisting mainly of silicates, carbonates and quartz. Due to its favourable barrier properties, this geomaterial has been selected as the host rock for the underground disp ...

Waste treatment is a complex procedure that comprises multidimensional aspects. The challenges posed by the energy transition and international protocols emphasize the role of waste in its material and energy dimension. With an increasing population and li ...

Growth and viability of microorganisms in bentonite and their potential activity in deep geological repository environments

Chattez avec Graph Search

Atomic level insight into irradiation effects in nuclear fuel materials

Microbial hydrogen sinks in the sand-bentonite backfill material for the deep geological disposal of radioactive waste

A FEM modelling workflow to simulate THM effects in the rock around nuclear waste packages

Thermo-hydro-mechanical behaviour of the Callovo-Oxfordian claystone under thermal changes

Innovative thermophysical characterization of an ATF composite cladding: the case of silicon carbide

Evolution of water content and suction of Opalinus Clay from recovery at the drilling site to handling in the laboratory

Tandem catalysis enables chlorine-containing waste as chlorination reagents

Gamma-ray Spectroscopy in Low-Power Nuclear Research Reactors

Towards edible robots and robotic food

Renewable energy integration and waste heat valorization in aluminum remelting for co-producing kerosene and methanol

Neutron-Gamma Noise Measurements in a Zero-Power Reactor Using Organic Scintillators

Intra-pin Reaction Rate Measurements in the CROCUS Experimental Reactor

Experimental study and interpretative modelling of the Power Exhaust in Configurations with Multiple X-Points in TCV

Reuse of cut concrete slabs in new buildings for circular ultra-low-carbon floor designs

Demonstration of a sparse sensor placement technique to the limited diagnostic set in a fusion power plant

Shear strength and shear stiffness analysis of compacted Wyoming-type bentonite

Monte Carlo analysis of BWR geometries using a cycle check-up methodology

Lignin, from biomass waste to sustainable materials for food packaging, antiviral coatings and agriculture

Experimental and Numerical Investigation on Water Exchange of Opalinus Clay Samples

Decision support methodology for waste-to-value process integration