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Oil extraction from scum and ex situ transesterification to biodiesel.

Yellapu, Sravan Kumar, Kaur, Rajwinder et Tyagi, Rajeshwar Dayal (2021). Oil extraction from scum and ex situ transesterification to biodiesel. Biofuels , vol. 12 , nº 6. p. 715-722. DOI: 10.1080/17597269.2018.1532753.

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Résumé

The aim of this study is to investigate the extraction of oil from scum obtained from a municipal wastewater treatment plant. Various parameters such as solvent volume, temperature, agitation and moisture content were optimized to maximize the oil extraction efficiency using freeze-dried scum. The oil extraction efficiency was compared for each parameter using hexane and petroleum diesel as a solvent. The optimum physical parameters for oil extraction using freeze-dried scum were 75 g solids/L solvent, temperature 60 °C, agitation 300 rpm for 60 min, and maximum oil extraction efficiency of 100 and 94.3% w/w was obtained using hexane and petroleum diesel, respectively. The obtained results using 1 g of scum were further validated using 1 kg of wet scum under optimized conditions, and oil extraction efficiency of 94.1 ± 1.3 and 91.3 ± 4.2% w/w was obtained using hexane and petroleum diesel, respectively. Furthermore, ex situ transesterification was performed, and results showed that scum had a higher neutral lipid. In brief, scum is a potential feedstock for the production of biodiesel, and more work on this must be done in future.

Type de document: Article
Mots-clés libres: wastewater sludge; scum; oil extraction; petroleum diesel; ex situ transesterification; biodiesel
Centre: Centre Eau Terre Environnement
Date de dépôt: 28 nov. 2019 19:11
Dernière modification: 15 sept. 2021 17:58
URI: https://espace.inrs.ca/id/eprint/9574

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