alexa Abstract | Lipid extraction for biodiesel production from municipal sewage water sludge

European Journal of Experimental Biology
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Research Article Open Access


Municipal sewage is a source of various lipids where the lipids can be extracted and converted to biodiesel by transesterification reaction. The present study reveals the properties of extracted Lipids like, Viscosity mm2/S, Density, kg/m3, Acid value mg KOH/g, Iodine value g I2/100 g, Value of saponification(mg KOH/g), Free fatty acid (%),Capric acid (%),Lauric acid (%),Myristic acids (%),Stearic acid (%), Oleic acid (%),Palmitic acid (%),others are studied from waste water sludge collected from Hebbala, Nayandahalli and Vrishabhavathy treatment plants located in Bangalore in both summer and Rainy seasons and revealed in the paper. The lipid content was estimated to be maximum in summer season ranging from 785 mg/g in Hebbala and 486 mg/g in Nayandahalli sludge samples. Hence, the sewage sludge proved to be a good raw material which can be utilized for the synthesis of biodiesel economically and ecofriendly, with the extension of present investigation.

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Author(s): Sirangala Thimappa Girisha Krishnappa Ravikumar Mrunalini and Venkatachalapathy Girish


Lipid, Biodiesel, Sewage water sludge

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