Biohydrogen production in an integrated biosystem using crude glycerol from waste cooking oils

Author(s)

Rodrigues, Caroline Varella ^{[1, 2]} ; Rios Alcaraz, Francisco Abraham ^[1] ; Nespeca, Maurilio Gustavo ^[3] ; Rodrigues, Aline Varella ^[1] ; Motteran, Fabricio ^[4] ; Tallarico Adorno, Maria Angela ^[5] ; Varesche, Maria Bernadete A. ^[5] ; Maintinguer, Sandra Imaculada ^{[2, 6]}

Affiliation

^[1] Sao Paulo State Univ UNESP, Inst Chem IQ, Prof Francisco Degni 55, BR-14800060 Araraquara, SP - Brazil

^[2] Sao Paulo State Univ UNESP, Bioenergy Res Inst IPBEN, Rua 10, 2527, BR-13500230 Rio Claro, SP - Brazil

^[3] Sao Paulo State Univ UNESP, Monitoring & Res Ctr Fuel Qual, Biofuels, Crude Oil, Derivat CEMPEQC, Prof Francisco Degni 55, BR-14800060 Araraquara, SP - Brazil

^[4] Fed Univ Pernambuco UFPE, Dept Civil Engn, Av Arquitetura, Cidade Univ, BR-50740550 Recife, PE - Brazil

^[5] Univ Sao Paulo, Dept Hydraul & Sanitat, Sch Engn Sao Carlos, Av Trabalhador Sao Carlense, 400, BR-13566590 Sao Carlos, SP - Brazil

^[6] Univ Araraquara UNIARA, R Voluntarios Patria 1309, BR-14801320 Araraquara, SP - Brazil

• Document type: Journal article
• Source: RENEWABLE ENERGY; v. 162, p. 701-711, DEC 2020.
• Web of Science Citations: 3

Abstract

Biohydrogen production was evaluated in an integrated biosystem, using both dark and photo fermentation, using crude glycerol (CG) derived from the production of biodiesel from waste cooking oils (WCO). The dark fermentation assay was done with 20.0 g COD L-1 of CG by a mixed culture from Clostridiales order at 37 degrees C, pH 5.5 and generated 24.06 mmol H-2 g(-1) CODconsumed, with the removal of 45.74% of CG. The dark fermentation effluent (DFE) in concentrations of 1.0, 2.0 and 3.0 g COD L-1 was used in the photo fermentation by a phototrophic bacteria culture of Rhizobiales and Clostridiales order, at 37 degrees C, pH 7.0 at 18.50 W m(-2). The optimum condition was achieved with 1.0 g COD L-1 of DFE and generated 3.94 mmol H-2 g(-1) CODconsumed, with the removal of 76.10% of COD. The culture was able to consume ethanol (76.86%), acetic acid (95.73%), butyric acid (94.76%) and mainly methanol (99.18%), representing a sustainable alternative for the utilization of CG from WCO. (C) 2020 Elsevier Ltd. All rights reserved. (AU)

• FAPESP's process: 17/11767-1 - AEM 2017 - 3th International Conference on Hydrogen
• Grantee: Sandra Imaculada Maintinguer
• Support type: Research Grants - Meeting - Abroad