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Oil extraction from scum and ex situ transesterification to biodiesel.

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Yellapu, Sravan Kumar; Kaur, Rajwinder; Tyagi, Rajeshwar Dayal (9999). Oil extraction from scum and ex situ transesterification to biodiesel. Biofuels . DOI: 10.1080/17597269.2018.1532753. (Sous Presse)

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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: 28 nov. 2019 19:11
URI: http://espace.inrs.ca/id/eprint/9574

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