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Economic process to produce biohydrogen and volatile fatty acids by a mixed culture using vinasse from sugarcane ethanol industry as nutrient source

descriptionPublicationkeyboard_double_arrow_right Article , Journal 01 May 2014 France, Canada Publisher:Elsevier BVJournal:Bioresource Technology, volume 159, pages 380-386 (issn: 0960-8524,

Authors: Sydney, Eduardo Bittencourt; Larroche, Christian; Novak, Alessandra Cristine; Nouaille, Régis; Sarma, Saurabh Jyoti; Brar, Satinder Kaur; Letti, Luiz Alberto Junior; +2 Authors

doi: 10.1016/j.biortech.2014.02.042

pmid: 24675397

Economic process to produce biohydrogen and volatile fatty acids by a mixed culture using vinasse from sugarcane ethanol industry as nutrient source

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Abstract

This work evaluates the potential of vinasse (a waste obtained at the bottom of sugarcane ethanol distillation columns) as nutrient source for biohydrogen and volatile fatty acids production by means of anaerobic consortia. Two different media were proposed, using sugarcane juice or molasses as carbon source. The consortium LPBAH1 was selected for fermentation of vinasse supplemented with sugarcane juice, resulting in a higher H2 yield of 7.14 molH2 molsucrose(-1) and hydrogen content in biogas of approx. 31%, while consortium LPBAH2 resulted in 3.66 molH2/molsucrose and 32.7% hydrogen content in biogas. The proposed process showed a rational and economical use for vinasse, a mandatory byproduct of the renewable Brazilian energy matrix.

Countries

France, Canada

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Keywords

Environmental Engineering, 330, Vinasse, biohydrogen, Microbial Consortia, Industrial Waste, Bioengineering, [SDV.MP.PRO] Life Sciences [q-bio]/Microbiology and Parasitology/Protistology, [SDV.MP.PRO]Life Sciences [q-bio]/Microbiology and Parasitology/Protistology, Bioreactors, molasses, sugarcane, Molasses, Waste Management and Disposal, Ethanol, volatile fatty acids, Sugarcane, Hydrogen-Ion Concentration, Models, Theoretical, vinasse, Fatty Acids, Volatile, [SDV.MP.BAC]Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Carbon, Saccharum, Biofuels, Volatile fatty acids, [SDV.MP.BAC] Life Sciences [q-bio]/Microbiology and Parasitology/Bacteriology, Biohydrogen, Biotechnology, Hydrogen

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