Desalination wastewater, which contains large amount of salt waste, might lead to severely environmental pollution. This study\nevaluated the effect of dilution rate (0.1 ? ???? ? 0.3 day?1) on microalgal biomass productivity, lipid content, and fatty acid profile\nunder steady-state condition of Chlorella vulgaris supplementedwith concentrated desalination. Continuous culture was conducted\nfor 55 days. Results show that the biomass productivity (????????) varied from 57 to 126mg L?1 d?1 (dry mass) when the dilution rate\nranged from 0.1 to 0.3 day?1. At lowest dilution rate (???? = 0.1 day?1), the continuous culture regime ensured the highest values\nof maximum biomass concentration (???????? = 570 �± 20mL?1) and protein content (52%). Biomass lipid content was an increasing\nfunction of ????. The most abundant fatty acids were the palmitic (25.3 �± 0.6%) at ???? = 0.1 day?1 and the gamma-linolenic acid\n(23.5 �± 0.1%) at ???? = 0.3 day?1 ones. These fatty acids present 14 to 18 carbons in the carbon chain, being mainly saturated and\npolyunsaturated, respectively. Overall, the results show that continuous culture is a powerful tool to investigate the cell growth\nkinetics and physiological behaviors of the algae growing on desalination wastewater.
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