Fig. 1From: Optimization of cultivation conditions for Microcystis aeruginosa for biodiesel production using response surface methodologySimplified sketch of the lab-scale photobioreactor: (a) blower, (b) connection rubber tubes, (c) air bubbles, (d) cotton plug, (e) air gap, (f) glass column, (g) inner glass tube, (h) inner magnet, (i) outer magnet, (j) valve, (k) outlet, and (l) fluorescent lampBack to article page