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US 12,649,898 B2Granted
Method and system for membrane carbonation
AssigneeArizona Board of Regents on behalf of Arizona State University
InventorsBruce Rittmann, Everett Eustance, Yen-Jung Lai, Justin Flory, Diana Calvo Martinez, Tarun Shesh
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Abstract
Disclosed herein are methods and systems for membrane carbonation for cultivating microalgae and other microorganisms that utilize a gaseous substrate, as well as to upgrade the quality of mixed-gas streams.
Claims6
A membrane carbonation system for cultivating a photoautotrophic organism in a photoautotrophic culture, the system comprising:
- a membrane unit comprising a plurality of non-porous hollow-fiber membranes configured to be at least partially submerged in the photoautotrophic culture, wherein each of the non-porous hollow-fiber membranes comprises a lumen;
- a valve fluidly coupled to an inlet of the membrane unit and configured to fluidly couple to a gas source comprising a mixture of gases comprising CO2, the valve configured to control supply of the mixture of gases from the gas source to the lumen of each of the non-porous hollow-fiber membranes, wherein when the mixture of gases is present in the lumen of each of the non-porous hollow-fiber membranes, the CO2 diffuses through the non-porous hollow-fiber membranes into the photoautotrophic culture;
- and
- a controller communicatively coupled to the valve, wherein the controller is configured to control the valve based on a pH of the photoautotrophic culture.
1 more element
Dependencies are inferred from the claim text.