Journal
INTERNATIONAL JOURNAL OF HYDROGEN ENERGY
Volume 39, Issue 18, Pages 9573-9579Publisher
PERGAMON-ELSEVIER SCIENCE LTD
DOI: 10.1016/j.ijhydene.2014.04.003
Keywords
Pretreatment; Microalgae; Lipids; Biohydrogen (H-2); Waste
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Funding
- Council of Scientific and Industrial Research (CSIR), New Delhi
- Ministry of New and Renewable Energy, Government of India [103/131/2008-NT]
- CSIR
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An integrated biorefinery approach utilizing deoiled algal cake (after lipid extraction) as potential feed-stock for biohydrogen (H-2) production using selectively enriched acidogenic consortia as biocatalyst was evaluated. Algae pretreated extract (AP-E) documented maximum H-2 production rate (HPR), cumulative H-2 production (CHP) and specific H-2 yield (SHY) with higher substrate degradation (65%) in terms of COD removal efficiency than other conditions, which is a good sign for waste remediation. Along with the biohydrogen production and substrate removal the consortia also produced good amount of volatile fatty acids (VFA). VFA production in fermentation media resulted in reactor pH drop. The study depicted the feasible use of deoiled algal biomass as feed-stock for H-2 production in the framework of biorefinery. Copyright (C) 2014, Hydrogen Energy Publications, LLC. Published by Elsevier Ltd. All rights reserved.
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