A process to produce graphene dual doped with nitrogen and sulfur atoms through a reduction of graphene oxide by microorganisms. Also, graphene dual doped with nitrogen and sulfur atoms obtainable by this process, and the use of the doped graphene to produce e.g. electronic components or water purification equipment. The process is eco-sustainable and economic with the additional advantage of providing a product with significantly improved performance compared to known products.

A process to produce graphene dual doped with nitrogen and sulfur atoms through a reduction of graphene oxide by microorganisms. Also, graphene dual doped with nitrogen and sulfur atoms obtainable by this process, and the use of the doped graphene to produce e.g. electronic components or water purification equipment. The process is eco-sustainable and economic with the additional advantage of providing a product with significantly improved performance compared to known products.

A system and method for the production of microbial consortiums and by-product material is provided. A physical containment system comprising phase spaces arranged in a discrete order to favor specific biological reactions is also provided. Phase profiles and phase data sets include the pre-determined physical and biological parameters for the phase space transitions. Movement of material from one phase to the next is hydraulically balanced enabling working fluid to continuously move in a fixed direction and rate of flow. Continuous monitoring of phase profiles and phase data sets provide feedback to the system enabling alteration of the conditions in the system to control reactions therein.

A system and method for the production of microbial consortiums and by-product material is provided. A physical containment system comprising phase spaces arranged in a discrete order to favor specific biological reactions is also provided. Phase profiles and phase data sets include the pre-determined physical and biological parameters for the phase space transitions. Movement of material from one phase to the next is hydraulically balanced enabling working fluid to continuously move in a fixed direction and rate of flow. Continuous monitoring of phase profiles and phase data sets provide feedback to the system enabling alteration of the conditions in the system to control reactions therein.

Processes and systems for biologically producing hydrogen gas from organic waste, including food waste. Such a process includes biologically producing hydrogen gas from organic waste by anaerobic fermentation of the organic waste with at least one strain of yeast.

Processes and systems for biologically producing hydrogen gas from organic waste, including food waste. Such a process includes biologically producing hydrogen gas from organic waste by anaerobic fermentation of the organic waste with at least one strain of yeast.

A method for producing hydrogen from pork by using photosynthetic organisms includes: 1) mixing pork and trypsin, and adding a citric acid-sodium citrate buffer solution to a mixture of the pork and the trypsin; adjusting the pH of the citric acid-sodium citrate buffer mixed with the pork and the trypsin to neutral, to yield a neutral solution; adding a hydrogen-production medium and photosynthetic bacteria HAU-M1 in the late logarithmic phase to the neutral solution; and 2) placing a mixture of the neutral solution, the hydrogen-production medium, and the photosynthetic bacteria HAU-Ml in an incubator at 28-32° C. and a light intensity of 2800-3200 lux in the nitrogen atmosphere for hydrogen production.

A method for producing hydrogen from pork by using photosynthetic organisms includes: 1) mixing pork and trypsin, and adding a citric acid-sodium citrate buffer solution to a mixture of the pork and the trypsin; adjusting the pH of the citric acid-sodium citrate buffer mixed with the pork and the trypsin to neutral, to yield a neutral solution; adding a hydrogen-production medium and photosynthetic bacteria HAU-M1 in the late logarithmic phase to the neutral solution; and 2) placing a mixture of the neutral solution, the hydrogen-production medium, and the photosynthetic bacteria HAU-Ml in an incubator at 28-32° C. and a light intensity of 2800-3200 lux in the nitrogen atmosphere for hydrogen production.

The invention is directed to compositions and methods for the manufacture of pigmented solids structures for which can be used for construction and/or decoration. Manufacturing comprises fixing one or more pigments to an aggregate material such as crushed rock, stone or sand. The pigmented aggregate is incubated with urease or urease producing microorganisms, an amount of a nitrogen source such as urea, and an amount of calcium source such as calcium chloride forming calcite bridges between particles of aggregate. The resulting solid has a hardness and colorfastness for most any construction material. Using selected aggregate and pigment, the process also provides for the manufacture of simulated-stone materials such as clay or granite bricks or blocks, marble counter-tops, and more. The invention is also directed to composition containing microorganisms and pigment as kits that can be added to most any aggregate materials.

The invention is directed to compositions and methods for the manufacture of pigmented solids structures for which can be used for construction and/or decoration. Manufacturing comprises fixing one or more pigments to an aggregate material such as crushed rock, stone or sand. The pigmented aggregate is incubated with urease or urease producing microorganisms, an amount of a nitrogen source such as urea, and an amount of calcium source such as calcium chloride forming calcite bridges between particles of aggregate. The resulting solid has a hardness and colorfastness for most any construction material. Using selected aggregate and pigment, the process also provides for the manufacture of simulated-stone materials such as clay or granite bricks or blocks, marble counter-tops, and more. The invention is also directed to composition containing microorganisms and pigment as kits that can be added to most any aggregate materials.