TECHNOLOGY FOCUS - INSTRUMENTATION AND TESTING - Preferred Components: The second nozzle comprises a supersonic nozzle. The first free jet of compressible fluid comprises steam, air or a gas. The first reactor chamber of the first aerodynamic reactor contains a first enlarged cross-section portion at the inlet end. The fourth nozzle comprises a supersonic nozzle. The third free jet of compressible fluid comprises steam, air or a gas. The second reactor chamber of the second aerodynamic reactor contains a second enlarged cross-section portion at the inlet end. The apparatus further comprises at least a third aerodynamic reactor and a third gas/liquid separator connected in series.    TECHNOLOGY FOCUS - ORGANIC CHEMISTRY - Preferred Process: The process (I) further comprises: (i) driving the second effluent gas mixture through a third aerodynamic reactor with a third free jet formed from a third compressible fluid, where the third free jet has third atomized liquid droplets or vapor of an alkali metal alkaline solution, which are incorporated in it: (j) reacting the third atomized liquid droplets or vapor of the alkali metal alkaline solution, the oxides of nitrogen, and at least a portion of the carbon dioxide to form second reaction products in the form of third droplets; (k) growing the third droplets into third larger droplets by diffusion, condensation, impaction and/or interception; (l) separating the third larger droplets from the second effluent gas mixture in a third gas/liquid separator to form a third effluent gas mixture and a third effluent liquid stream; (m) treating the third liquid effluent stream through oxidation, decarbonation, cooling, evaporation and/or crystallization, where a second portion of carbon dioxide gas and water vapor is liberated and alkali metal nitrate is separated as a solid; and (n) discharging the third effluent gas mixture. The process for capturing and removing carbon dioxide gas, heavy and trace metals, fly ash, large and small particulates, oxides of nitrogen and sulfur, carbon monoxide and/or organic compounds, from a hot combustion gas mixture stream, comprises: (i) pressurizing the hot combustion gas mixture stream to give a pressurized hot combustion gas mixture stream; (ii) conditioning the pressurized hot combustion gas mixture stream to remove large particulates and large fly ash particles and to reduce the temperature to 250 to 400 degrees F to give a conditioned combustion gas mixture stream; (iii) treating the conditioned combustion gas mixture stream in a first aerodynamic reactor in which the conditioned combustion gas mixture stream is driven through a subsonic nozzle in part by a free jet exiting from at least one supersonic nozzle fed with a compressible fluid so as to form a supersonic free jet (46) which in conjunction with the subsonic nozzle, acts as an ejector pump, where the supersonic free jet having has atomized liquid droplets or vapor issuing from nozzles associated with the supersonic free jet and contacting the conditioned combustion gas mixture stream to form a turbulent subsonic free jet (50) by passing through the subsonic nozzle into a downstream reaction chamber, where the heavy and trace metals and the particulates provide nucleation sites for the encapsulation of the heavy and trace metals, and the particulates into liquid droplets under conditions of impaction, interception, condensation and/or diffusion, to be followed by droplet growth by means of impaction, interception, nucleation and/or condensation, into first larger liquid droplets; (iv) removing the first larger liquid droplets from the conditioned combustion gas mixture stream in a first gas/liquid separator as a first liquid effluent stream containing the heavy and trace metals and the particulates; (v) removing the first liquid effluent stream for subsequent disposal or physical and chemical recovery; (vi) discharging a first effluent gas stream comprising oxides of carbon, nitrogen and sulfur from the first gas/liquid separator; (vii) treating the first effluent gas stream in a second aerodynamic reactor for the removal of sulfur dioxide and a portion of the carbon dioxide, where the aerodynamic reactor comprises a subsonic nozzle through which the first effluent gas stream is driven in part by a supersonic free jet exiting from at least one supersonic nozzle fed with a compressible fluid so as to form a supersonic free jet which in conjunction with the subsonic nozzle, acts as an ejector pump, where the supersonic free jet has atomized liquid droplets or vapor of an alkali metal alkaline solution issuing from nozzles associated with the supersonic free jet and contacting the first effluent gas stream to form a turbulent subsonic free jet by passing through the subsonic nozzle into a downstream reaction chamber, where the sulfur dioxide, the carbon dioxide and the alkali metal alkaline solution are brought into intimate contact and react to produce reaction products in the form of second liquid droplets, where the second liquid droplets is grown by diffusion, impaction, interception and/or condensation, into second larger liquid droplets; (viii) removing the second larger liquid droplets from the first effluent gas stream in a second gas/liquid separator as a second liquid effluent stream containing the liquid reaction products; (ix) treating the second liquid effluent stream by filtration, washing by water or a metal chloride solution, where the wash solution is ducted for subsequent disposal or physical and chemical recovery; (x) passing the treated second liquid effluent stream to a first mixing tank; (xi) treating a first portion of the second treated effluent stream from the first mixing tank through steps comprising decarbonation, oxidation, evaporation and/or crystallization, where a portion of carbon dioxide gas and water vapor is liberated and alkali metal sulfate is separated as a solid with recycle of the effluent liquid stream from the sequential decarbonation, oxidation, evaporation and/or crystallization, treatment to the first mixing tank; (xii) adding water and an alkali metal alkaline solution to the first mixing tank; (xiii) circulating a second portion of the second treated liquid effluent stream from the first mixing tank to the second aerodynamic reactor; (xiv) condensing the water vapor from the carbon dioxide and water vapor to produce carbon dioxide gas; (xv) discharging the remainder of the first effluent gas stream as a second effluent gas stream comprising oxides of nitrogen and carbon dioxide from the second gas/liquid separator; (xvi) treating the second effluent gas stream from the second gas/liquid separator in a third aerodynamic reactor for the removal of the nitrogen oxides and an additional portion of the carbon dioxide, where the third aerodynamic reactor comprises a subsonic nozzle through which the second effluent gas stream is driven in part by a supersonic nozzle fed with a compressible fluid so as to form a supersonic free jet which in conjunction with the subsonic nozzle, acts as an ejector pump, where the supersonic free jet has atomized liquid droplets or vapor of an alkali metal alkaline solution issuing from liquid nozzles associated with the supersonic free jet and contacting the second effluent gas stream to form a turbulent subsonic free jet by passing through the subsonic nozzle into a downstream reaction chamber, where the nitrogen oxides, the carbon dioxide and the alkali metal alkaline solution, are brought into intimate contact and react to produce reaction products in the form of third liquid droplets growing by diffusion, impaction, interception and/or condensation, into third larger droplets; (xvii) removing the third larger droplets from the second effluent gas stream in a third gas/liquid separator as a third liquid effluent stream containing the liquid reaction products; (xviii) treating the third liquid effluent stream by filtration washed by water or metal chloride solution with the effluent wash liquid removed for subsequent disposal or physical and chemical recovery; (xix) passing the filtered liquid reaction products from the third effluent stream to a second mixing tank; (xx) circulating a first portion of the filtered liquid effluent from the third effluent stream to the third aerodynamic reactor; (xxi) treating a second portion of the filtered liquid reaction products from the third effluent stream from the second mixing tank through oxidation, decarbonation, cooling, evaporation and/or crystallization, where carbon dioxide gas and water vapor are liberated and alkali metal nitrate is separated as a solid with recycle of the remaining product liquid stream to the second mixing tank; (xxii) adding water and alkali metal alkaline solution to the second mixing tank; (xxiii) condensing the water vapor from the carbon dioxide gas and water vapor to produce carbon dioxide gas; and (xxiv) discharging the remainder of the second effluent gas stream as a third effluent gas stream. : The process (I) further comprises treating the combustion gas mixture stream prior to the first aerodynamic reactor with a stream of free radicals produced by photolysis of hydrogen peroxide, chlorine gas, chlorine dioxide gas and/or water and introducing a second stream of the first free radicals via the first atomized liquid droplets or vapor in step (a) for oxidizing mercury to mercury salts and other trace metals to their respective salts. In process (I), a third stream of the free radicals is introduced via the second atomized liquid droplets or vapor in step (d) for the oxidation of carbon monoxide gas and organic vapors to carbon dioxide gas and water vapor; a fourth stream of the free radicals is introduced via the third atomized liquid droplets or vapor in step (i) for the oxidation of nitric oxide gas to nitrogen dioxide gas, carbon monoxide gas to carbon dioxide gas and trace organic vapors to carbon dioxide gas and water vapor. In process (I), the first effluent liquid stream is further subjected to the following steps to separate mercury-containing pollutants, comprising: (a1) removing insoluble particles from the effluent liquid stream giving a filtrate containing soluble mercury-containing pollutants; (a2) passing the filtrate through an activated carbon adsorption bed to give a carbon-treated filtrate; (a3) precipitating mercury salts from the carbon-treated filtrate with an alkaline solution capable of forming an insoluble salt with mercury; (a4) extracting the insoluble particles with an acidic solution to give soluble mercury salts; (a5) treating the soluble mercury salts with an alkaline solution capable of forming an insoluble salt with mercury. The insoluble particles are extracted with an alkaline solution to give oxides or hydroxides of a first group of metals. The insoluble particles are extracted with an oxidative solution to give oxidized products of a second group of metals. The insoluble particles are extracted with nitric acid to give soluble uranium compounds followed by treating the soluble uranium compounds with an alkaline solution to give solid uranium compounds. The insoluble particles are extracted with carbonate to give metal carbonates. The insoluble particles are extracted with an organic solvent to give metal organic complexes. The process (I) further comprises: passing the treated second effluent liquid stream from step (h) through a first ion exchange demineralization resin bed to remove selenium ions. The production of biodiesel fuel from carbon dioxide produced in the process (I) (where the alkali metal alkaline solution in steps (d) and (i) comprises a solution of sodium hydroxide and sodium carbonate-bicarbonate, the alkali metal sulfate in step (h) comprises sodium sulfate, and the alkali metal nitrate in step (m) comprises sodium nitrate), comprises combining a portion of the second and third effluent streams into a mixing tank; (b) introducing a brine solution into the mixing tank; feeding the solution from the mixing tank into an algae pond; introducing seed organisms into the algae pond; treating the algae pond with sunlight or artificial light to promote the growth of algae solids; harvesting the algae solids from the algae pond; and fermenting the algae solids to produce biodiesel fuel. The production of ethanol fuel comprises: combining a portion of the second and third effluent streams into a mixing tank; introducing a brine solution into the mixing tank; feeding the solution from the mixing tank into an algae pond; introducing seed organisms into the algae pond; treating the algae pond with sunlight or artificial light to promote the growth of algae solids; harvesting the algae solids from the algae pond; and fermenting the algae solids to produce ethanol fuel. The production of methanol comprises reacting the carbon dioxide gas liberated in steps (h) and (m) with hydrogen gas and steam in a shift reactor to produce carbon monoxide gas and water vapor; reacting the carbon monoxide gas with additional hydrogen in a methanol synthesis reactor to produce methanol. The production of ethylene gas from carbon dioxide, comprises reacting the methanol with heat and hydrogen gas in an ethylene cracking unit to form ethylene gas. The production of ethanol from carbon dioxide comprises reacting the ethylene gas with water and hydrogen in an ethanol synthesis reactor to produce ethanol. The production of ethylene dichloride from carbon dioxide gas comprises, reacting the ethylene gas with chlorine gas in a reactor to produce ethylene dichloride. The production of gasoline, comprises reacting the methanol in a gasoline synthesis reactor to produce gasoline. The production of vinyl chloride from carbon dioxide gas, comprises reacting the ethylene dichloride with ethylene gas to produce vinyl chloride. The production of polyvinyl chloride from carbon dioxide gas, comprises reacting the vinyl chloride with additional ethylene gas to produce polyvinyl chloride. Preferred Components: The liquid droplets or vapor in step (a) comprise an alkali metal chloride solution. The alkali metal alkaline solution in step (d) comprises a solution of potassium hydroxide and potassium carbonate-bicarbonate, and the alkali metal sulfate in step (h) comprises potassium sulfate. The alkali metal alkaline solution in step (i) comprises a solution of potassium hydroxide and potassium carbonate-bicarbonate, and the alkali metal nitrate in step (m) comprises potassium nitrate. The compressible fluid in steps (a), (d) and (i) comprises steam, air or gas. EXAMPLE - No suitable example given.