Methods and systems for capturing and storing carbon dioxide are disclosed. In some embodiments, the methods include the following: mixing materials including magnesium or calcium with one or more acids and chelating agents to form a magnesium or calcium-rich solvent; using the organic acids derived from biogenic wastes as acids or chelating agents; generating carbonate ions by reacting a gas including carbon dioxide with a carbonic anhydrase biocatalyst; reacting the solvent with the carbonate ions to form magnesium or calcium carbonates; recycling a solution containing the biocatalyst after forming magnesium or calcium carbonates for re-use in the generating step; using the magnesium and calcium carbonates as carbon neutral filler materials and using the silica product as green filler materials or inexpensive absorbents.

Provided are recombinant microorganisms having a foreign gene encoding a variant of a nitrous oxide reductase protein, a composition comprising the recombinant microorganism or the variant of a nitrous oxide reductase protein for use in removing nitrous oxide in a sample, a variant of a nitrous oxide reductase protein, and a polynucleotide encoding the variant.

Provided are recombinant microorganisms having a foreign gene encoding a variant of a nitrous oxide reductase protein, a composition comprising the recombinant microorganism or the variant of a nitrous oxide reductase protein for use in removing nitrous oxide in a sample, a variant of a nitrous oxide reductase protein, and a polynucleotide encoding the variant.

There is an air purification system comprising, at least one housing, at least one pump configured to pump an enhanced fluid through the housing. at least one fan configured to draw air into the housing. With this embodiment, the air flow of the air is being cleaned and flows in a direction transverse to the direction of flow of the enhanced fluid. There can be at least one sensor configured to determine a level of biological impurities in the air. There can also be at least one controller configured to control a rate of movement of said at least one fan based upon a level of impurities detected by said at least one sensor.

There is an air purification system comprising, at least one housing, at least one pump configured to pump an enhanced fluid through the housing. at least one fan configured to draw air into the housing. With this embodiment, the air flow of the air is being cleaned and flows in a direction transverse to the direction of flow of the enhanced fluid. There can be at least one sensor configured to determine a level of biological impurities in the air. There can also be at least one controller configured to control a rate of movement of said at least one fan based upon a level of impurities detected by said at least one sensor.

A gaseous matter capture system and method comprising an aerial unit configured to capture gaseous matter directly from the atmosphere and further comprising storage means configured to transfer said gaseous matter for further processing in a non-aerial unit for the purposes of climate change mitigation and further use of captured gases.

A gaseous matter capture system and method comprising an aerial unit configured to capture gaseous matter directly from the atmosphere and further comprising storage means configured to transfer said gaseous matter for further processing in a non-aerial unit for the purposes of climate change mitigation and further use of captured gases.

Systems and methods of producing a concentrated solution from a gas stream are disclosed. The method of producing a concentrate solution includes introducing the gas stream having the contaminant into an absorption chamber, introducing a dilute liquid having the contaminant into the absorption chamber, at least one of the gas stream and the dilute liquid being at an elevated temperature, and contacting the gas stream with the dilute solution to produce a liquid-enriched gas stream and a concentrate solution. The systems for producing a concentrated solution include a source of a gas stream having a contaminant, a source of a dilute solution having the contaminant, and an absorption chamber fluidly connected to the source of the gas stream and the source of the dilute solution. The source of the dilute solution can have a subsystem for removing contaminants from the gas stream, constructed and arranged to receive the gas stream or a liquid-enriched gas and produce the dilute solution.

Systems and methods of producing a concentrated solution from a gas stream are disclosed. The method of producing a concentrate solution includes introducing the gas stream having the contaminant into an absorption chamber, introducing a dilute liquid having the contaminant into the absorption chamber, at least one of the gas stream and the dilute liquid being at an elevated temperature, and contacting the gas stream with the dilute solution to produce a liquid-enriched gas stream and a concentrate solution. The systems for producing a concentrated solution include a source of a gas stream having a contaminant, a source of a dilute solution having the contaminant, and an absorption chamber fluidly connected to the source of the gas stream and the source of the dilute solution. The source of the dilute solution can have a subsystem for removing contaminants from the gas stream, constructed and arranged to receive the gas stream or a liquid-enriched gas and produce the dilute solution.

The present invention relates to a method and arrangement for reducing carbon dioxide in exhaust gases formed by combustion characterized by an exhaust system having a space (5) in which the exhaust gases are supplied to plant parts comprising chloroplasts with chlorophyll via means (6) for injection and an apparatus for generating and scattering of red light (7), preferably light from a laser and/or maser into the mixture of exhaust gases and plant parts, and of a grape sugar collecting device (8), and or, a collecting device (9) for water condensed from the exhaust gases.