Compositions and methods for hydrogen production are disclosed.

The present invention relates to recombinant microorganisms for producing biological hydrogen. In addition, the invention relates to nucleic acid constructs and processes for modifying microorganisms for enabling the production of hydrogen therefrom.

The present invention relates to recombinant microorganisms for producing biological hydrogen. In addition, the invention relates to nucleic acid constructs and processes for modifying microorganisms for enabling the production of hydrogen therefrom.

Waste gas mixtures produced and used in industry may contain harmful sulphurous compounds. The present disclosure provides a method for treatment of gas mixtures contaminated with harmful sulphurous compounds by using microorganisms capable of degrading said harmful sulphurous compounds which involves controlling nitrate levels in the medium in which microbiological conversion of harmful sulphurous compounds takes place at high levels.

The present invention refers to an industrial process for obtaining an agricultural composition formed by association of one or more species of Bacillus spp., of Lactobacillus spp. and of Pseudomonas, the process for induction of exudates/metabolites, as well as the application thereof in the manufacture and in the increase of the efficiency of phosphate fertilizers of mineral, organomineral and organic origin. Surprisingly, the agricultural composition used in the fertilization industry increases the availability of macro and micronutrients to the plants with agricultural interest, such as soy and corn. Finally, both the use of the agricultural composition in the fertilizers industry as the application of the product in the field potentialize the greater availability of essential nutrients for the development of the cultures.

The present invention refers to an industrial process for obtaining an agricultural composition formed by association of one or more species of Bacillus spp., of Lactobacillus spp. and of Pseudomonas, the process for induction of exudates/metabolites, as well as the application thereof in the manufacture and in the increase of the efficiency of phosphate fertilizers of mineral, organomineral and organic origin. Surprisingly, the agricultural composition used in the fertilization industry increases the availability of macro and micronutrients to the plants with agricultural interest, such as soy and corn. Finally, both the use of the agricultural composition in the fertilizers industry as the application of the product in the field potentialize the greater availability of essential nutrients for the development of the cultures.

Presently described are engineered microbes modified such that the surface of the microbe contains one or more rare earth element (REE) binding ligands, as well as methods of use thereof.

Presently described are engineered microbes modified such that the surface of the microbe contains one or more rare earth element (REE) binding ligands, as well as methods of use thereof.

A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.

A method for preparing biochar and hydrogen by utilizing anaerobic fermentation byproducts, the method including: (1) mixing a first straw, seeding sludge and distilled water, and then carrying out anaerobic fermentation to obtain a mixed product after fermentation; (2) performing separation on the mixed product to obtain a second straw and biogas slurry; and (3) carbonizing the second straw to obtain biochar, and collecting gas after a pressurized catalytic reaction on the biogas slurry to obtain hydrogen.