Growth Response of Chlorella vulgaris to Cultivation on Different Cassava Waste Mixtures

Abstract

The environmental hazard caused by the indiscriminate and continuous dumping of cassava wastes to the environment has necessitated the need for their recycling into diverse biological products. This exploitation has harnessed their potential to serve as a microalgae feed stock for biomass generation. Proximate composition of the cassava wastes showed cassava peel: carbohydrate-86.85%, protein-4.18%, lipid 5.98% and cassava digestate Carbohydrate-75%, protein-2.5%, lipid-7.0%. Phys-iochemical contents of the cassava waste in mg/ ml showed cassava waste water: pH-3.55, DO-6.17, BOD5-138.81, COD-246.50, TDS-912.70, Nitrate-13.41, Phosphate-21.42, Sulphate-15.69, Calcium-17.61 and magnesium-9.56. Cassava peel extracts showed: pH-3.58, DO-6.25, BOD5-141.82, COD-151.60, TDS-132.23, Nitrate-12.