Systems and methods of atmospheric carbon dioxide enrichment and delivery to photobioreactors via membrane carbonation

A system for growing phototrophic microorganisms comprising:

• a bioreactor comprising a microorganism-containing liquid and a membrane system;
• a collector comprising a sorbent for capturing CO2 from air;
• a regeneration unit configured to:
• receive the collector within an enclosure,
• regenerate the sorbent by causing it to release sorbed CO2, and
• capture the released CO2;
• a storage tank coupled to the regeneration unit, the storage tank comprising a headspace, the storage tank being configured to receive the released CO2 from the regeneration unit and containing at least a portion of the released CO2 from the regeneration unit as a storage solution and at least a portion of the released CO2 from the regeneration unit as a CO2 gas, the headspace of the storage tank containing the CO2 gas;
• and
• a pump coupled to the headspace and configured to pump the CO2 gas from the headspace to a bioreactor via membrane system,
• the membrane system comprising one or more membranes configured for diffusion-driven delivery of a CO2 gas across the one or more membranes to the microorganism-containing liquid of the bioreactor, a first side of a membrane of the one or more membranes configured to interface with a CO2 gas stream from the storage tank and a second side of the membrane of the one or more membranes configured to interface with a portion of the microorganism-containing liquid in the bioreactor, the second side different than the first side.