The study aims at the utilitarian approach of managing nutrient and biomass. Removal of phosphorus (P) was faster as compared to that of nitrogen (N). Up to 90% of P-removal was achieved within 1.5 days at high phytoplankton density. Highest rate of P-removal was 72.4 ?g/l/hr while that of N removal was 609.8 ?g/l/hr. The trends in removal log phases of nutrients and growth log phase of phytoplankton indicates that N is essential for cellular multiplication and P-removal was associated with some additional process other than uptake by phytoplanktons. The exposure to different N: P ratio and the nutritional history of phytoplanktons influence their nutrient removal strategy. Lower N: P ratio increases cellular lipid content in the phytoplanktons. Cumulative addition of even lower amount of nutrients can produce higher biomass as compared to one time addition of higher amount of nutrients
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Author Name: Narendra Kumar Sahoo
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Keywords: Nitrate, Phosphate, Algae, Lipid
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EISSN: 2229 – 6905
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