2017 Volume 96 Issue 9 Pages 372-375
Promotion of growth and lipid productivities of freshwater microalga Botryococcus braunii by steel slags: steelmaking slag (SMS) and blast furnace slag (BFS) was investigated. Addition of SMS by 5 g L-1 brought promotion effects of growth and lipid productivities by 1.74 and 2.16-fold, respectively, higher than control. In case of applying BFS by 5 g L-1, similar promotion effects of growth and lipid productivities by 2.39 and 4.47-fold, respectively, higher than control achieved. Both the biomass and lipid productivities of B. braunii were enhanced by elution of iron from SMS and other components from BFS. Interestingly, BFS were more effective than SMS regarding to the productivities of metabolites.
