Bioprocessing of cultivated Chlorella pyrenoidosa on poultry excreta leachate to enhance algal biomolecule profile for resource recovery

[Display omitted] •C. pyrenoidosa utilized Poultry excreta leachate as a novel medium resource recovery.•Biomolecule profile enhanced with PELBG in comparison to control.•Increase in 60% biomass productivity with PELBG.•Direct correlation observed in between nutrient load of PELBG and biomolecule profile. The aim of this work was to study the cultivation of Chlorella pyrenoidosa on poultry excreta leachate to enhance the biochemical composition of algal biomass. The growth of microalgae was analyzed with different concentrations of poultry excreta leachate in BG-11 and distilled water. The biomolecules observed have high value in the form of carbohydrates (0.64 gL−1), protein (1.02 gL−1), chlorophyll (20 µg mL−1) and lipid amount (0.49 gL−1) with PEL BG -25%. Biomass produced in PEL BG -25% was also found to be 60% (2.5 gL−1) higher than the BG-11 medium as a control (1.5gL−1). Recovery of nutrients was observed with leachate wastewater concentration in terms of nitrate (84.2%), ammonium nitrogen (53.1%), and inorganic phosphate (96.2%). Hence, sustainability of microalgae cultivation in wastewater provides a new insight for resource utilization.