Ultrasonication aided biodiesel production from one-step and two-step transesterification of sludge derived lipid

Xiaolei Zhang, Song Yan, Rajeshwar Dayal Tyagi, Patrick Drogui and Rao Y. Surampalli

Energy, 2016, vol. 94, issue C, 401-408

Abstract: Trichosporon oleaginosus was grown in wastewater sludge to produce lipid. The obtained biomass was employed to study ultrasonication effect on lipid extraction and in-situ transesterification. Besides the most utilized solvents (the mixture of chloroform and methanol, 1:1 v/v), other solvents including water, hexane, and methanol were also studied to explore their capacities in lipid extraction with ultrasonication. The maximum lipid recovery was 11.8, 35.3, 62.0, and 95.3% (w/w) with water, hexane, methanol, and the mixture of chloroform and methanol (1:1 v/v), respectively within 20 min. Chloroform and methanol gave the best performance. However, due to the adverse environmental concern related to the utilization of chloroform, in-situ transesterification (single step lipid extraction and transesterification to obtain biodiesel) was investigated.

Keywords: Biodiesel; Ultrasonication; Lipid extraction; Solvents; In-situ transesterification (search for similar items in EconPapers)
Date: 2016
References: View references in EconPapers View complete reference list from CitEc
Citations: View citations in EconPapers (6)

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Persistent link: https://EconPapers.repec.org/RePEc:eee:energy:v:94:y:2016:i:c:p:401-408

DOI: 10.1016/j.energy.2015.11.016

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