The mixing nozzle has a throat section, a diffuser section, a gas nozzle section, a first liquid suction port, a liquid nozzle section, a second liquid suction port, a baffle plate, and a jetting port. The first liquid suction port liquidly absorbs the solution in the water storage pool from a side of the gas nozzle section toward the gas nozzle tip. The liquid nozzle section extends to the downstream side of the gas nozzle section with intervening the first liquid suction port. The second liquid suction port liquidly absorbs the solution in the water storage pool from a side of the liquid nozzle section toward the liquid nozzle tip. The baffle plate is provided such that the mixed flow mixed in the diffuser section collides in front of a downstream end of the diffuser section, and divides and reverses the mixed flow.

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.

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.

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.

The disclosure relates to the field of reduction of CO.sub.2 emission, more in particular to CO.sub.2 capture and conversion. The disclosure further relates to the culturing of algae and an apparatus for use thereof. One object of the disclosure is to provide an alternative method for capturing and conversion of CO.sub.2 from a gaseous stream.

There is provided a process for growing a phototrophic biomass in a reaction zone, wherein the reaction zone includes a reaction mixture that is operative for effecting photosynthesis upon exposure to photosynthetically active light radiation, wherein the reaction mixture includes phototrophic biomass that is operative for growth within the reaction zone. The process includes supplying at least a fraction of gaseous exhaust material, being discharged from an industrial process, to the reaction zone, exposing the reaction mixture to photosynthetically active light radiation and effecting growth of the phototrophic biomass in the reaction zone, wherein the effected growth includes growth effected by photosynthesis, and modulating distribution of a molar rate of supply of carbon dioxide, being exhausted from the reaction zone, as between a smokestack and at least another point of discharge.

A device for the removal of volatile organic compounds including at least one first connector arranged at the outlet of a gas stream to be treated. At its top, has a connection extension that links with the bioreactor located in the middle part of the device (having a nutrient solution where organisms that degrade volatile organic compounds can grow). Additionally, there is a dispersion arrangement that couples with an outlet through which the gaseous stream, once treated, is expelled out to the environment. A distribution network of a nutritive solution with microorganisms that degrade volatile organic compounds. The connection extension includes a distributor cone that is arranged in an inverted way and internally emptied and also has a cylindrical extension at its top. The distributor cone allows the airflow to be displaced by an external path into the internal walls of the distributor cone, whose cylindrical extension connects with a second perforated cylinder with multiples drill holes throughout its periphery. The axial axis of the cylindrical extension coincides with the axial axis of the distributor cone. The perforations of this second perforated cylinder are arranged so that the gas output can enter the bioreactor from its bottom.

A method for processing algae-based products using flue gas heat includes mixing flue gas with water, receiving a heated gas in a first enclosure of a heat exchanger, receiving an algal paste in a second enclosure of the heat exchanger, introducing an organic solvent to the algal paste, extracting an algal oil and a plurality of algal shells from the algal paste by dissipating heat from the first enclosure to the second enclosure; and extracting the algal oil from the organic solvent and the algal shells.

An effective ethanol emission treatment system usable at buildings such as spirit aging warehouses which biologically removes ethanol prior to air escaping to the atmosphere is disclosed. The system can be used either with or without imparting negative pressure on the building to draw the ethanol vapors into the treatment system. The system provides efficient removal of ethanol from large volumes of air having relatively low ethanol concentrations.

A system and method for converting carbon dioxide into biomass within subterranean formations or cavities by introducing chemolithoautotrophic microbes and microbe supporting compounds in the formation so as to cause the chemolithoautotrophic microbes to fix carbon dioxide within the formation into biomass, which can then be used in the production of renewable energy and carbon-based products.