Microalgae as promising source for integrated wastewater treatment and biodiesel production


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Output type: Journal article

UM6P affiliated Publication?: Yes

Author list: Fal, Soufiane; Benhima, Redouane; El Mernissi, Najib; Kasmi, Yassin; Smouni, Abdelaziz; El Arroussi, Hicham

Publisher: Taylor & Francis: STM, Behavioural Science and Public Health Titles

Publication year: 2021

Journal: International Journal of Phytoremediation (1522-6514)

ISSN: 1522-6514

eISSN: 1549-7879

Languages: English (EN-GB)


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Abstract

Microalgae have been studied for their potential of wastewater treatment as well as a promising source for biodiesel production. This study investigates the potential of microalgae to remove nutrients from domestic wastewater (DWW) while producing lipids-rich biomass for biodiesel production. Eight microalgae were cultivated in (DWW) to evaluate their nutrients removal capacity and biomass production. Total phosphorus (TP) of DWW reduced from 2 mg L-1 to 0.02 mg L-1 with the treatment efficiency of 99.15% and the highest performance was noted in Chlamydomonas reinhardtii (C. reinhardtii). For total nitrogen (TN), treatment efficiency climbed to 99.07%. It is reduced from 18.35 to 0.17 mg L-1 recorded in C. reinhardtii and Chlorella pyrenoidosa (C. pyrenoidosa). On the other hand, all microalgae showed a high lipids-rich biomass in wastewater compared to BG11. The highest lipid content was 36.93% noted in Chlorella sorokiniana (C. sorokiniana). Fatty acids methyl ester (FAME) profiles showed a high content of palmitic C16:0, oleic C18:1 and stearic acids C18:0 in studied microalgae strains. In summary, microalgae envisage its potential application in integrated wastewater treatment and biodiesel production. In perspective, the authors focus on the validation of this bioprocess in pilot scale. Furthermore, the use of microalgae for other applications such CO2 biosequestration and added value products. Novelty statement: The present study investigates the potential of Moroccan microalgae as candidates to wastewater remediation and high biomass production with high lipid rate for biodiesel production.


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Last updated on 2021-02-12 at 23:21