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(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

Effect of inoculum concentration, pH, light intensity and lighting regime on hydrogen production by phototrophic microbial consortium

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Author(s):
Lazaro, Carolina Zampol [1] ; Amancio Varesche, Maria Bernadete [2] ; Silva, Edson Luiz [1]
Total Authors: 3
Affiliation:
[1] Univ Fed Sao Carlos, Dept Chem Engn, BR-13565905 Sao Carlos, SP - Brazil
[2] Univ Sao Paulo, Sch Engn Sao Carlos, Dept Hydraul & Sanitat, BR-13566590 Sao Carlos, SP - Brazil
Total Affiliations: 2
Document type: Journal article
Source: RENEWABLE ENERGY; v. 75, p. 1-7, MAR 2015.
Web of Science Citations: 23
Abstract

Photobiological hydrogen production using a bacterial consortium has advantages over pure cultures regarding application to wastewater treatment. Photo-H-2 production from organic acids, which were produced by dark fermentation, must be studied in detail to make a hydrogen production process in two stages efficient. In this scenario, our study aimed to determine the optimized culture conditions for hydrogen production by a phototrophic bacterial consortium. The inoculum concentration, pH, light intensity and illumination protocols were the parameters that we evaluated. The optimal conditions for hydrogen production were inoculum concentration of 0.2 g VSS L-1, pH 7.0, light intensity of 5 klux, with a constant illumination regime. The highest hydrogen production potential (P) and substrate conversion efficiency (SCE) were 41.5 mmol H-2 L-1 culture and 25.4%, respectively, with a COD removal of 95%. (C) 2014 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 09/15984-0 - Bioenergy production from wastewaters and environmental fitting of liquid and solid wastes generated
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants
FAPESP's process: 12/03979-5 - Hydrogen production from sugarcane vinasse using sequential two-stage dark and photo fermentation processes
Grantee:Carolina Zampol Lazaro
Support Opportunities: Scholarships in Brazil - Post-Doctoral