Feasibility of Cultivating Hartbeespoort Dam Microalgae

J. Brink & S. Marx
Three cultivation experiments were conducted to grow microalgae in three consecutively scaled-up laboratory systems, which consisted of one, five and 135-litre bioreactors. The highest productivity achieved under optimum growth conditions was in the 5-litre Erlenmeyer bioreactors with 0.0862 g/L/d at an average bioreactor day-time temperature of 26.0oC and an aeration rate of 1.5 L/min. The three cultivation experiments revealed that closed­cultivation systems would not be feasible for the economic cultivation of micro-algal biomass from the...