Commissariat a L'energie Atomique Et Aux Energies Alternatives

Alban Gossard

Agnès Grandjean

Hubert-Alexandre Turc

Fabien Frances

Célia Lepeytre

Philippe Coussot

Mohamed Nidal Ben Abdelouahab

Hubert Alexandre Turc

Pierre Venditti

A decontamination paste comprising at least one inorganic viscosifier selected from clays, at least one compound in the form of fibers and optionally further one or more optional components, the remainder being of solvent. A method for decontaminating a substrate made of a solid material using the paste, the substrate being contaminated by at least one contaminant species referred to as the labile contaminant species and/or by at least one contaminant species referred to as the surface contaminant species located on one of the surfaces thereof, and/or by at least one contaminant species referred to as the subsurface contaminating species located just below said surface, and/or by at least one contaminant species located under the surface in the depth of the substrate.

Decontamination paste consisting of clays and microfibers and method for decontaminating a solid material using said paste

An adsorbent and photocatalytic decontamination gel consisting of a colloidal solution comprising, preferably consisting of: 8% to 30% by weight, preferably 10% to 30% by weight, more preferably 15% to 20% by weight, better still 15% to 20% by weight, the value 15% being excluded, even better still 16% to 20% by weight, for example 20% by weight of TiO, optionally doped, relative to the weight of the gel; optionally 0.01% to 10% by weight, preferably 0.1% to 5% by weight, relative to the weight of the gel, of at least one dye and/or of at least one pigment; optionally 0.1% to 2% by weight, relative to the weight of the gel, of at least one surfactant; optionally 0.05% to 5% by weight, preferably 0.05% to 2% by weight, relative to the weight of the gel, of at least one superabsorbent polymer; and the balance of solvent.

Adsorbent and photocatalytic decontamination gel, and method for decontaminating surfaces using said gel

A suctionable gel for eliminating a contaminating species contained in an organic layer on the surface of a material, consisting of a colloidal solution comprising, preferably consisting of: 1 wt % to 25 wt %, preferably 5 wt % to 20 wt % based on the total weight of the gel, of at least one inorganic viscosifying agent; 13 wt % to 99 wt %, preferably 80 wt % to 95 wt % based on the total weight of the gel, of an organic solvent selected among the terpenes and the mixtures thereof; optionally, 0.01 wt % to 10 wt %, based on the total weight of the gel, of at least one dye and/or pigment; optionally 0.1 wt % to 2 wt %, based on the total weight of the gel, of at least one surfactant. The disclosure further relates to a decontamination method using the gel.

Suctionable gel and method for eliminating a contamination contained in a surface organic layer of a solid substrate

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Avignon, France

Alban Gossard