Abstract: A process for the biological production of hydrogen and/or methane by absorption and biological conversion of carbon dioxide, includes the steps of being performed by co-culture of one or more hydrogen-producing bacteria in at least one first reactor, and one or more acetogenic bacteria in at least one second reactor, and/or one or more methanogenic microorganisms in at least one third reactor.

Abstract: A continuous process for the cracking of a polymeric material, includes the continuous introduction of the polymeric material in a stream or bath of molten catalyst. A plant for the cracking of a polymeric material is also related and includes a closed circuit/environment containing a molten catalyst, and an element adapted to keep the molten catalyst in continuous motion.

Abstract: A method for producing methane by biological conversion of carbon dioxide is performed using a symbiosis between one or more methane-generating bacteria and: (i) one or more hetero-autotrophic cyanobacteria and/or microalgae, or (ii) one or more sulfobacteria and/or acetobacteria, wherein the hetero-autotrophic cyanobacteria and/or microalgae, or the sulfobacteria and/or acetobacteria, produce the molecular hydrogen required for the conversion of carbon dioxide into methane performed by the methane-generating bacteria.

Abstract: A continuous process for the cracking of a polymeric material, includes the continuous introduction of the polymeric material in a stream or bath of molten catalyst. A plant for the cracking of a polymeric material is also related and includes a closed circuit/environment containing a molten catalyst, and an element adapted to keep the molten catalyst in continuous motion.

Abstract: A method for producing methane by biological conversion of carbon dioxide is performed using a symbiosis between one or more methane-generating bacteria and: (i) one or more hetero-autotrophic cyanobacteria and/or microalgae, or (ii) one or more sulfobacteria and/or acetobacteria, wherein the hetero-autotrophic cyanobacteria and/or microalgae, or the sulfobacteria and/or acetobacteria, produce the molecular hydrogen required for the conversion of carbon dioxide into methane performed by the methane-generating bacteria.

Abstract: A method for converting organic solid waste into humic products and the corresponding apparatus, in which a preliminary aerobic fermentation of the organic solid waste is performed, followed by a second aerobic fermentation of the organic waste in the presence of specific microorganisms in order to provide a basic precursor on which the selective metabolization occurs of specific bacterial strains to provide the humic product.

Abstract: A method for converting organic solid waste into humic products and the corresponding apparatus, in which a preliminary aerobic fermentation of the organic solid waste is performed, followed by a second aerobic fermentation of the organic waste in the presence of specific microorganisms in order to provide a basic precursor on which the selective metabolization occurs of specific bacterial strains to provide the humic product.

Abstract: An apparatus for the pyrolysis (cracking) of a polymeric material consisting of a reactor provided with a molten catalyst bed and a feeding extruder for introducing the polymeric material into the catalyst bed. The process consists in the introduction of a polymeric material in the molten catalyst bed for converting a variety of polymers, side-chain plastics, linear-chain plastics and halogenated plastics, such as for example PVC, into hydrocarbon products which are useful for energy generation while avoiding the pollution problems associated with the direct combustion of plastic materials. The process can also be used for cracking mixtures of polymeric material derived from the sorting of municipal solid waste.

Abstract: A process for refining noble metals from auriferous mines, wherein the auriferous material is first milled and treated with a cyanide solution, and comprising: a step for the pretreatment of the auriferous material, wherein the complexes of cyanide with noble metals are fixed on anionic resins and then incinerated; a predefining step, which comprises an etching of the materials incinerated during the pretreatment with a hydrochloric-nitric solution; and specific steps for refining the gold, palladium, platinum and silver.

Abstract: An apparatus for the pyrolysis (cracking) of a polymeric material consisting of a reactor provided with a molten catalyst bed and a feeding extruder for introducing the polymeric material into the catalyst bed. The process consists in the introduction of a polymeric material in the molten catalyst bed for converting a variety of polymers, side-chain plastics, linear-chain plastics and halogenated plastics, such as for example PVC, into hydrocarbon products which are useful for energy generation while avoiding the pollution problems associated with the direct combustion of plastic materials. The process can also be used for cracking mixtures of polymeric material derived from the sorting of municipal solid waste.

Abstract: The aim of the present invention is to obtain bioproteins derived from whey and/or wheyey residues and waste of the dairy industry. The obtainment of these bioproteins therefore entails the treatment of the whey and/or wheyey residues and includes a method for eliminating the lactose contained in milk in order to subsequently be able to extrapolate the proteins therefrom so that they constitute a product which is reusable and, in particular, generally digestible. In order to provide the treatment according to the invention, there are also particular plant stages for performing this elimination at the cellular level. It is particularly important for the invention that specific microorganisms are used which perform the elimination at the cellular level of the lactose contained in whey and/or wheyey residues.

Abstract: A method for extracting vegetable oils from oleaginous plants in which the solid parts of the plants, which contain oils embedded in macromolecular polysaccharide substances typical of the integument of the plants, are subjected to an enzyme attack by means of at least one enzyme which lyses at least that polysaccharide. Then the oil contained in the solid parts is recovered by means of conventional mechanical recovery stages without using a solvent-based extraction stage.