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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.)

Biogas production within the bioethanol production chain: Use of co-substrates for anaerobic digestion of sugar beet vinasse

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Moraes, B. S. [1] ; Triolo, J. M. [2] ; Lecona, V. P. [2] ; Zaiat, M. [3] ; Sommer, S. G. [2]
Total Authors: 5
[1] Brazilian Ctr Res Energy & Mat CNPEM, Brazilian Bioethanol Sci & Technol Lab CTBE, BR-13083970 Campinas, SP - Brazil
[2] Univ Southern Denmark, Fac Engn, Dept Chem Engn Biotechnol & Environm Technol, DK-5230 Odense M - Denmark
[3] Univ Sao Paulo, Sao Carlos Engn Sch EESC, Ctr Res Dev & Innovat Environm Engn CPDI EA, Biol Proc Lab LPB, BR-13563120 Sao Carlos, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: Bioresource Technology; v. 190, p. 227-234, AUG 2015.
Web of Science Citations: 22

Bioethanol production generates large amounts of vinasse, which is suitable for biogas production. In this study, the anaerobic digestion of sugar beet vinasse was optimised using continuous stirred-tank reactors (CSTR) supplemented either with lime fertiliser or with 3% cow manure. In both reactors, the C/N ratio was adjusted by adding straw. The biochemical methane potential (BMP) of vinasse was 267.4 +/- 4.5 L CH4 kg VS-1. Due to the low content of macro-and micronutrients and low C/N ratio of vinasse, biogas production failed when vinasse alone was fed to the reactor. When co-substrate was added, biogas production achieved very close to the BMP of vinasse, being 235.7 +/- 32.2 L CH4 kg VS-1 from the fertiliser supplied reactor and 265.2 +/- 26.8 L CH4 kg VS-1 in manure supplied reactor at steady state. Anaerobic digestion was the most stable when cow manure was supplied to digestion of vinasse. (C) 2015 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 13/03578-3 - Anaerobic digestion of vinasse for biogas production and mitigation of greenhouse gas emission
Grantee:Bruna de Souza Moraes
Support Opportunities: Scholarships abroad - Research Internship - Post-doctor