Fig. 1
Algal biomass and lipid production of C. pyrenoidosa in unsterilized piggery wastewater when sparging air or simulated flue gas. The cultures were illuminated at 28 ± 0.5 °C under a 16-/8-h light/dark cycle with exposure to 45 μE m−2 s−1 provided by cool-white fluorescent lights. The microalgal cells were sampled every 24 h for growth determinations. PA means culturing C. pyrenoidosa with sparging air, and PC means culturing C. pyrenoidosa with sparging simulated flue gas. Data are presented as the mean ± standard deviation of the mean