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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.)

Dark fermentative biohydrogen production from synthetic cheese whey in an anaerobic structured-bed reactor: Performance evaluation and kinetic modeling

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Author(s):
Blanco, V. M. C. [1] ; Oliveira, G. H. D. [1] ; Zaiat, M. [1]
Total Authors: 3
Affiliation:
[1] Univ Sao Paulo, Ctr Res Dev & Innovat Environm Engn, Sao Carlos Sch Engn, Lab Biol Proc, 1100 Joao Dagnone Ave, BR-13563120 Sao Carlos, SP - Brazil
Total Affiliations: 1
Document type: Journal article
Source: RENEWABLE ENERGY; v. 139, p. 1310-1319, AUG 2019.
Web of Science Citations: 4
Abstract

This study investigated the potential of dark fermentative hydrogen production from cheese whey in an acidogenic anaerobic structured-bed reactor (ASTBR). The reactor was operated at 25 degrees C with an organic loading rate (OLR) of 24 kg COD m(-3) d(-1) and a hydraulic retention time (HRT) of 24 h. The ASTBR had an average volumetric hydrogen production rate (VHPR) of 1.6 +/- 0.7 L H-2 L-1 d(-1) and an average hydrogen yield (HY) of 1.4 +/- 0.7 moL H-2 mol(-1) of consumed lactose. Batch experiments were performed with biomass from the ASTBR to characterize the main metabolic transformations involved in hydrogen production. An ADM1-based, unstructured kinetic model was developed and fitted to the obtained temporal profiles. The model allowed a satisfactory description of the process and indicated that hydrogen production from lactate and acetate could explain 74.5% of the total hydrogen volume produced. Because lactic-acid-producing bacteria are expected to ultimately colonize acidogenic reactors treating cheese whey, optimizing electron flow through this pathway may be a suitable strategy to enable long-term hydrogen production from cheese whey using mixed-culture fermentation. (C) 2019 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: 15/06246-7 - Biorefinery concept applied to biological wastewater treatment plants: environmental pollution control coupled with material and energy recovery
Grantee:Marcelo Zaiat
Support Opportunities: Research Projects - Thematic Grants