Reuse of shrimp farm wastewater as growth medium for marine microalgae isolated from Red Sea – Jeddah

Fish farm effluents are suitable growth media for Nannochloropsis gaditana, a polyunsaturated fatty acid producing microalga

“…Several studies prove the ability of microalgae to remove nutrients from wastewaters generated in aquaculture [21-23, 25, 27, 35, 36], but only few of them have focused on the chemical composition of the produced microalgal mass [17,18,21,26].…”

“…The fatty acid composition of lipids synthesized by N. gaditana seems to be unaffected by the growth medium, although recently Malibari et al [26] reported that lipids produced by various microalgae strains cultivated in shrimp farm wastewater were more saturated when compared to those produced in a synthetic medium. The conditions occurred in OPSR did not favor the synthesis of C14:0, as its concentration was low in TL, as well as in the individual lipid fractions.…”

“…For instance, Malibari et al [26], Guo et al [38], and Guldhe et al [39] utilized aquaculture wastewaters of similar composition to the phosphate rich EST medium used in this study for growth of various microalgae, such as Platymonas subcordiformis, Chlorella sorokiniana, Chlorella sp., Dunaliella sp., Nannochloropsis sp., Navicula sp. For instance, Malibari et al [26], Guo et al [38], and Guldhe et al [39] utilized aquaculture wastewaters of similar composition to the phosphate rich EST medium used in this study for growth of various microalgae, such as Platymonas subcordiformis, Chlorella sorokiniana, Chlorella sp., Dunaliella sp., Nannochloropsis sp., Navicula sp.…”

“…2.5 × 10 7 and 5.5 × 10 7 cells/mL) was also considered (Fig. cultivated either in synthetic medium or in shrimp farm wastewater under constant illumination [26]. High cell mass production (i.e.…”

“…Biotreatment of aquaculture wastewaters with microalgae is an attractive approach for simultaneous costeffective microalgal mass production and sustainable wastewater remediation [21]. In fact, aquaculture effluents can be an excellent medium for algal growth [21][22][23][24][25][26], although these wastes contain residual organic compounds and other micropollutants. For instance, shrimp farm wastewater containing phosphorus, nitrogen and total and volatile suspended solids in high concentrations [21,27], is a suitable medium for microalgae cultivation [26].…”