Cultivation of Nannochloropsis oculata in Petroleum Wastewater under Different Monochromatic Light-emitting Diode (LED) Light for Biodiesel Production

Microalgae have the potential as a source of biodiesel due to their high lipid productivity and ability to grow in variety of environments, including wastewater.Therefore, in this study isolated species Nannochloropsis oculata are cultured in 10% (v/v) petroleum wastewater for 18:06 hours light/dark (L/D) under various monochromatic light-emitting diode (LED) lights: blue (λ = 465 nm), red (λ = 660 nm), green (λ = 520 nm), and fluorescent (full -spectrum) as a control he studies indicated that N. oculata grown under blue LED illumination had a high fat percentage of 63.3 % and a total dry weight of 0.988 ± 0.04g L -1 .The potential N. oculata which cultivated under blue light generated the greatest amount of fatty acid methyl ester (FAME) at 81.1 %.It was also able to remove up to 94.2% of BOD, 89.2% of COD, and 94.8% of wastewater pollutants.