Technical insight on the requirements for CO₂-saturated growth of microalgae in photobioreactors.

ABSTRACT: Microalgal cultures are usually sparged with CO₂-enriched air to preclude CO₂ limitation during photoautotrophic growth. However, the CO₂ vol% specifically required at operating conditions to meet the carbon requirement of algal cells in photobioreactor is never determined and 1-10% v/v CO₂-enriched air is arbitrarily used. A scheme is proposed and experimentally validated for Chlorella vulgaris that allows computing CO₂-saturated growth feasible at given CO₂ vol% and volumetric O₂ mass-transfer coefficient (k _L a)_O. CO₂ sufficiency in an experiment can be theoretically established to adjust conditions for CO₂-saturated growth. The methodology completely eliminates the r

SUBMITTER: Yuvraj 

PROVIDER: S-EPMC5451369 | biostudies-literature | 2017 Jun

REPOSITORIES: biostudies-literature