biological co2 capturing by chlorella vulgaris microalgae: effect of bubble size on growth rate

In this study, a bubble column photobioreactor is used for cultivation of micro-algae and co2 capture to study the effect of bubble size, two kinds of air distributor are designed and used in the bubble column photobioreactor for micro-algae growth and carbon dioxide removal according to the results, the amount of microalgae growth in smaller bubbles was 33% greater than that of larger bubbles in a 01 volume ratio of co2 to air in addition, for larger size bubbles, the microalgae growth was 28% less than that obtained for small bubble sizes in a 005 volume ratio of co2 to air