This geopolymer molding production method comprises: a mixing step (S1) for mixing a first material containing aluminum and silicon with a hydrate of an alkali stimulant containing a hydrate of an alkaline hydroxide and/or a hydrate of an alkaline silicate; a compaction step (S2) for compacting the mixture obtained in the mixing step (S1) into a compacted mixture; and a curing step (S3) for curing the compacted mixture.

Disclosed herein are methods for treating wastewater grit to inactivate any pathogens that are present in the grit and for forming a solidified material comprising wastewater grit such as a chemically bonded phosphate ceramic (CBPC). The CBPC may be utilized in methods for repairing depressions in a road surface that include applying the uncured CBPC to the depression in the road surface and allowing the CBPC to cure.

Disclosed herein are methods for treating wastewater grit to inactivate any pathogens that are present in the grit and for forming a solidified material comprising wastewater grit such as a chemically bonded phosphate ceramic (CBPC). The CBPC may be utilized in methods for repairing depressions in a road surface that include applying the uncured CBPC to the depression in the road surface and allowing the CBPC to cure.

The novel process enables designing of raw materials and processing parameters, enabling synergistic and simultaneous chemical reactions among the various reactants of the design mix of chemical precursor of brine sludge which includes barium sulphate, magnesium hydroxide, calcium carbonate, sodium chloride, silica, aluminum containing compounds necessary for developing highly efficient shielding phases leading to homogenous matrix of shielding materials.

A method for treating soil contaminated with hydrocarbons, in particular with polycyclic aromatic hydrocarbons, includes working the soil with, by weight of soil from 0.1 to 12% of activated carbon; and from 0.1 to 10% of hydraulic binder, the total content of activated carbon and of hydraulic binder in particular ranging between 0.5 and 15%.

A method for treating soil contaminated with hydrocarbons, in particular with polycyclic aromatic hydrocarbons, includes working the soil with, by weight of soil from 0.1 to 12% of activated carbon; and from 0.1 to 10% of hydraulic binder, the total content of activated carbon and of hydraulic binder in particular ranging between 0.5 and 15%.

A system for asbestos neutralization, that includes a neutralization unit having a module configured for sorting of asbestos waste, an asbestos waste grinder; a concentrated sulfuric acid tank, a vat containing a hot diluted acid solution, for which temperature is between 70° C. and 100° C., in which grinded asbestos waste containing asbestos is dipped, the solution is configured for neutralizing asbestos contained in the grinded asbestos waste, a filtration unit to separate, at the end of the neutralization reaction, a solid inert waste from a liquid phase of the diluted acid solution, a regeneration unit for the diluted acid solution, which adjusts the hydrogen potential of the extracted liquid phase by adding concentrated sulfuric acid from the tank, and means for transferring the regenerated solution into the vat.

A system for asbestos neutralization, that includes a neutralization unit having a module configured for sorting of asbestos waste, an asbestos waste grinder; a concentrated sulfuric acid tank, a vat containing a hot diluted acid solution, for which temperature is between 70° C. and 100° C., in which grinded asbestos waste containing asbestos is dipped, the solution is configured for neutralizing asbestos contained in the grinded asbestos waste, a filtration unit to separate, at the end of the neutralization reaction, a solid inert waste from a liquid phase of the diluted acid solution, a regeneration unit for the diluted acid solution, which adjusts the hydrogen potential of the extracted liquid phase by adding concentrated sulfuric acid from the tank, and means for transferring the regenerated solution into the vat.

A method for recycling a used rotor blade of a wind turbine includes processing the used rotor blade into a plurality of material fragments. The method also includes treating the plurality of material fragments to remove at least a portion of the at least one composite material and expose the at least one fiber material of the used rotor blade. Further, the method includes mixing the treated plurality of material fragments with, at least, an alkali activator to form a usable geopolymer concrete.

A method for recycling a used rotor blade of a wind turbine includes processing the used rotor blade into a plurality of material fragments. The method also includes treating the plurality of material fragments to remove at least a portion of the at least one composite material and expose the at least one fiber material of the used rotor blade. Further, the method includes mixing the treated plurality of material fragments with, at least, an alkali activator to form a usable geopolymer concrete.