Algal biofuel from urban wastewater in India: Scope and challenges

Ramachandra, TV and Madhab, Mahapatra Durga and Shilpi, Samantray and Joshi, NV (2013) Algal biofuel from urban wastewater in India: Scope and challenges. In: Renewable and Sustainable Energy Reviews, 21 . pp. 767-777.

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Abstract

Rapidly depleting stocks of fossil fuels and increasing greenhouse gas (GHG) emissions have necessitated the exploration of cost effective sustainable energy sources focussing on biofuels through algae. Abundant wastewaters generated in urban localities every day provide the nourishment to nurture algae for biofuel generation. The present communication focuses on the lipid prospects of algae grown in wastewater systems. Euglena sp., Spirogyra sp. and Phormidium sp. were collected from selected locations of sewage fed urban lakes and sewage treatment plants of Bangalore and Mysore. The total lipid content of Euglena sp. was higher (24.6%) compared to Spirogyra sp. (18.4%) followed by Phormidium sp. (8.8%) and their annual lipid yield potential was 6.52, 1.94 and 2.856 t/ha/year, respectively. These species showed higher content of fatty acids (palmitate, stearate followed by oleic and linoleic acids) with the desirable biofuel properties. (C) 2013 Elsevier Ltd. All rights reserved.

Item Type:	Journal Article
Publication:	Renewable and Sustainable Energy Reviews
Publisher:	Elsevier Science
Additional Information:	Copyright of this article belongs to Elsevier Science.
Keywords:	Algae; Biofuel; Biological Nutrient Removal; Energy; Lipid; Wastewater
Department/Centre:	Division of Biological Sciences > Centre for Ecological Sciences Division of Interdisciplinary Sciences > Center for Infrastructure, Sustainable Transportation and Urban Planning (CiSTUP) Division of Mechanical Sciences > Centre for Sustainable Technologies (formerly ASTRA)
Date Deposited:	17 Jun 2013 08:01
Last Modified:	17 Jun 2013 08:01
URI:	http://eprints.iisc.ac.in/id/eprint/46695

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