Biodiesel Production from Scenedesmus obliquus Cultivated in Outdoor Conditions at Large Scale | ||||
| Delta Journal of Science | ||||
| Article 8, Volume 37, Issue 2, December 2016, Page 199-206 PDF (1.4 MB) | ||||
| Document Type: Research and Reference | ||||
| DOI: 10.21608/djs.2016.139946 | ||||
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| Authors | ||||
| Ahmed Darwish El-Gamal1; Mostafa El-Sheekh2; Alamo El-Din Bastawessi3; Ahmad Abd El-Kader2 | ||||
| 1Botany and Microbiol. dept., faculty of science (Boys), Al-Azhar University, Cairo, Egypt | ||||
| 2Phycology research unit, botany department, faculty of science, Tanta university, Tanta, Egypt | ||||
| 3Faculty of engineering, Tanta university, Tanta, Egypt | ||||
| Abstract | ||||
| Scenedesmus obliquus was discussed by phycologists as a promising microalga for biodiesel production based on its biomass and fatty acid productivity. In the present study, S. obliquus was pilot cultivated for large scale production in a semi continuous culture for three months using bubbled glass boxes photo- bioreactor. Cultivation of S. obliquus resulted in a maximum biomass productivity of 0. 59 g L−1 d−1 and maximum esterified fatty acid productivity of 20.37 mg l−1 d−1 in (March, April and May), different flocculants for biomass harvest showed maximum flocculation efficiency of 82% using 250 mg l−1 of NaOH for 2 h. Solar drying of the harvested biomass showed significant increase of esterified fatty acid content by 50% with respect to control. In addition, fatty acid profile and iodine number of S. obliquus oil meet biodiesel standard specifications which make the fatty acid of S. obliquus eligible for further research to be used as a feed stock for biodiesel production. | ||||
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