Advanced search
Start date
Betweenand
Related content
(Reference retrieved automatically from Web of Science through information on FAPESP grant and its corresponding number as mentioned in the publication by the authors.)

The recycling of biodigested vinasse in an upflow anaerobic sludge blanket reactor is a feasible approach for the conservation of freshwater in the biofuel ethanol industry

Full text
Author(s):
Madaleno, Leonardo Lucas [1] ; de Barros, Valciney Gomes [2, 3] ; Kesserling, Mayara Aparecida [1] ; Teixeira, Josiene Rocha [1] ; Duda, Rose Maria [1, 2, 3] ; de Oliveira, Roberto Alves [2, 3]
Total Authors: 6
Affiliation:
[1] Technol Coll, Paula Souza Ctr, Jaboticabal, SP - Brazil
[2] Sao Paulo State Univ UNESP, Lab Environm Sanitat, Dept Rural Engn, Sch Agr & Vet Sci, Via Acesso Prof Paulo Donato Castellane S-N, BR-14887900 Jaboticabal, SP - Brazil
[3] Sao Paulo State Univ UNESP, Grad Program Agr & Livestock Microbiol, Sch Agr & Vet Sci, Jaboticabal, SP - Brazil
Total Affiliations: 3
Document type: Journal article
Source: JOURNAL OF CLEANER PRODUCTION; v. 262, JUL 20 2020.
Web of Science Citations: 2
Abstract

The generation of large volumes of vinasse during the production of biofuel ethanol is a challenging problem since inappropriate application of the byproduct as an agro-fertigant can give rise to contamination of soil and watercourses and cause harm to aquatic life. The aims of the study were(i) to evaluate an alternative strategy involving the generation of biogas by anaerobic digestion of sugarcane vinasse in two-stage upflow anaerobic sludge blanket (UASB) reactors (R1 and R2 connected in series), and (ii) to determine the ethanol content and fermentation efficiency of mashes prepared by diluting sugarcane molasses with deionized water, fresh vinasse and effluents from R1 or R2, both before and after submission to the Fenton reaction. The highest percentages of ethanol were obtained with fermentation mashes prepared from molasses diluted with Fenton-treated R1 (5.1%) or R2 effluents (5.7%) or with non-treated R2 effluent (5.7%). The corresponding fermentation efficiencies of these processes were 88.5, 92.1 and 89.3%. The proposed combination of biofuel and biogas production would provide a sustainable source of energy, contribute to the safe disposal of large quantities of vinasse and help to reduce the volume of freshwater employed by the sugarcane processing industry. (C) 2020 Elsevier Ltd. All rights reserved. (AU)

FAPESP's process: 15/05567-4 - Syrup and wine quality from provisioned cut sugarcane and with diferents raw material impuritys
Grantee:Leonardo Lucas Madaleno
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants
FAPESP's process: 15/11045-0 - Sugar cane vinasse treatment by integrated biological and chemical processes
Grantee:Roberto Alves de Oliveira
Support Opportunities: Program for Research on Bioenergy (BIOEN) - Regular Program Grants