Biological decontamination gel and method for decontaminating surfaces by using this gel

摘要

A biological decontamination gel, consisting of a colloidal solution comprising from 5 to 30% by mass, preferably 5 to 25% by mass, still preferably 8 to 20% by mass, based on the mass of the gel, of at least one inorganic viscosifying agent: 0.5 to 10 mol/L of gel, preferably 1 to 10 mol/L of gel, of at least one active biological decontamination agent; 0.05 to 5% by mass, preferably 0.05 to 2% by mass, based on the mass of the gel, of at least one super-absorbent polymer; 0.1 to 2% by mass, based on the mass of the gel, of at least one surfactant; and the remainder of solvent.;A biological decontamination method applying this gel.

主权项

1. A method for biological decontamination of a surface of a solid substrate contaminated by at least one biological species found on said surface and possibly under said surface in the depth of the substrate, wherein at least one cycle is carried out, consisting essentially of the following successive steps:
a) applying a biological decontamination gel, consisting of a colloidal solution comprising: from 5 to 30% by mass based on the mass of the gel, of at least one inorganic viscosifying agent; from 0.5 to 10 mol/L of gel, of at least one active biological decontamination agent; 0.05 to 5% by mass based on the mass of the gel, of at least one super absorbent polymer; 0.1 to 2% by mass, based on the mass of the gel, of at least one surfactant; and the remainder of solvent; on said surface; b) maintaining the gel on the surface at least for a sufficient time so that the gel destroys and/or inactivates and/or absorbs the biological species, and so that the gel dries and forms a dry and solid residue containing said biological species; c) removing the dry and solid residue containing said biological species.