A process for growing a phototrophic biomass in a reaction zone including: (a) producing carbon dioxide supply-comprising gaseous material feed with a gaseous exhaust material producing process; (b) effecting separation, from the carbon dioxide supply-comprising gaseous material feed, of a gaseous carbon dioxide-rich product material, wherein the carbon dioxide concentration of the carbon dioxide-rich product material is greater than the carbon dioxide concentration of the carbon dioxide supply-comprising gaseous material feed, wherein the effecting separation includes: contacting the carbon dioxide supply-comprising gaseous material feed with a dissolution agent, wherein the dissolution agent is water or substantially water, within a contacting zone disposed at a pressure of between 0.6895 bar (10 psia) and 1.7237 bar (25 psia) and at a temperature of between two degrees Celsius and four degrees Celsius, such that dissolution of at least a fraction of the carbon dioxide supply-comprising gaseous material feed within the dissolution agent is effected so as to effect production of a carbon dioxide-comprising liquid solution product including dissolved carbon dioxide; (c) effecting release of the gaseous carbon dioxide-rich product material from the carbon dioxide-comprising liquid solution product feed by heating of the carbon dioxide-comprising liquid solution product; and (d) supplying at least a fraction of the gaseous carbon dioxide-rich product material to the reaction zone so as to effect growth of the phototrophic biomass by photosynthesis in the reaction zone, wherein the effecting release of the gaseous carbon dioxide-rich product material from the carbon dioxide-comprising liquid solution product feed is effected within a carbon dioxide recovery zone; and wherein the carbon dioxide recovery zone is separated from the contacting zone. (a) producing carbon dioxide supply-comprising gaseous material feed with a gaseous exhaust material producing process; (b) effecting separation, from the carbon dioxide supply-comprising gaseous material feed, of a gaseous carbon dioxide-rich product material, wherein the carbon dioxide concentration of the carbon dioxide-rich product material is greater than the carbon dioxide concentration of the carbon dioxide supply-comprising gaseous material feed, wherein the effecting separation includes: contacting the carbon dioxide supply-comprising gaseous material feed with a dissolution agent, wherein the dissolution agent is water or substantially water, within a contacting zone disposed at a pressure of between 0.6895 bar (10 psia) and 1.7237 bar (25 psia) and at a temperature of between two degrees Celsius and four degrees Celsius, such that dissolution of at least a fraction of the carbon dioxide supply-comprising gaseous material feed within the dissolution agent is effected so as to effect production of a carbon dioxide-comprising liquid solution product including dissolved carbon dioxide; (c) effecting release of the gaseous carbon dioxide-rich product material from the carbon dioxide-comprising liquid solution product feed by heating of the carbon dioxide-comprising liquid solution product; and (d) supplying at least a fraction of the gaseous carbon dioxide-rich product material to the reaction zone so as to effect growth of the phototrophic biomass by photosynthesis in the reaction zone,