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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.)

Reactor start-up strategy as key for high and stable hydrogen production from cheese whey thermophilic dark fermentation

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Lovato, Giovanna [1, 2] ; Gaspari Augusto, Isabela Mehi [1] ; Nunes Ferraz Junior, Antonio Djalma [3] ; Albanez, Roberta [1] ; Ratusznei, Suzana Maria [1] ; Etchebehere, Claudia [3] ; Zaiat, Marcelo [2] ; Domingues Rodrigues, Jose Alberto [1]
Total Authors: 8
[1] Maua Inst Technol EEM IMT, Maua Sch Engn, Praca Maua 1, BR-09580900 Sao Caetano do Sul, SP - Brazil
[2] Sao Paulo Univ EESC USP, Sao Carlos Sch Engn, Ave Trabalhador Sao Carlense 400, BR-13566590 Sao Carlos, SP - Brazil
[3] Minist Educ, Microbial Ecol Lab, Clemente Estable Biol Res Inst, Ave Italia 3318, Montevideo - Uruguay
Total Affiliations: 3
Document type: Journal article
Source: INTERNATIONAL JOURNAL OF HYDROGEN ENERGY; v. 46, n. 54, p. 27364-27379, AUG 5 2021.
Web of Science Citations: 0

Using the right start-up strategy can be vital for successful hydrogen production from thermophilic dark fermentation (55 degrees C), but it needs to be affordable. Hence, three start-up strategies modifying only influent concentration and temperature were assessed in a reactor fed with cheese whey: (i) high temperature (55 degrees C) and a high organic loading rate (OLRA - 15 kgCOD m(-3) d(-1)) right at the beginning of the operation; (ii) slowly increasing temperature up to 55 degrees C using a high OLRA and (iii) slowly increasing temperature and OLR(A )up to the desired condition. Strategy (iii) increased hydrogen productivity in 39% compared to the others. The combination of high temperature and low pH thermodynamically favored H-2 producing routes. Synergy between Thermoanaerobacterium and Clostridium might have boosted hydrogen production. Three reactors of 41 m(3) each would be needed to treat 3.4 x 10(3) m(3) year(-1) of whey (small-size dairy industry) and the energy produced could reach 14 MWh month(-1). (C) 2021 Hydrogen Energy Publications LLC. Published by Elsevier Ltd. All rights reserved. (AU)

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 type: Research Projects - Thematic Grants
FAPESP's process: 18/17715-6 - Biohydrogen production by treating agro-industry wastes (whey and glycerin) in an AnSBBR operated in thermophilic condition
Grantee:Giovanna Lovato
Support type: Scholarships in Brazil - Post-Doctorate
FAPESP's process: 19/25395-4 - Hydrogen production assessment by biodiesel production effluent treatment in thermophilic condition
Grantee:Isabela Mehi Gaspari Augusto
Support type: Scholarships in Brazil - Scientific Initiation