TY - JOUR
T1 - Effect of using effluent from anaerobic digestion of vinasse as water reuse on ethanol production from sugarcane-molasses
AU - Hurtado, Alejandro
AU - Arroyave, Catalina
AU - Peláez, Carlos
N1 - Funding Information:
The authors acknowledge the financial support from MINCIENCIA, Colombia with resources from “Patrimonio Autónomo Fondo Nacional de Financiamiento para la Ciencia , la Tecnología y la Innovación Francisco José de Caldas”, under call 656/2014 “Es Tiempo de Volver” [Project No. FP44842-505-2014]. The Interdisciplinary Group of Molecular Studies of the University of Antioquia, Colombia , for its financial and technical support. The authors would like to thank Professor Dr. Lorena Cardona and M.Chem. Elizabeth Garcia for their help and contributions in conducting this manuscript.
Funding Information:
The authors acknowledge the financial support from MINCIENCIA, Colombia with resources from ?Patrimonio Aut?nomo Fondo Nacional de Financiamiento para la Ciencia, la Tecnolog?a y la Innovaci?n Francisco Jos? de Caldas?, under call 656/2014 ?Es Tiempo de Volver? [Project No. FP44842-505-2014]. The Interdisciplinary Group of Molecular Studies of the University of Antioquia, Colombia, for its financial and technical support. The authors would like to thank Professor Dr. Lorena Cardona and M.Chem. Elizabeth Garcia for their help and contributions in conducting this manuscript.
Publisher Copyright:
© 2021 Elsevier B.V.
PY - 2021/8
Y1 - 2021/8
N2 - Current global prospects of increasing ethanol production face the problem of one of the highest consumptions of fresh water and the generation of large volumes of effluents. This study evaluated the reuse of effluent from the anaerobic digestion of vinasse as a replacement of freshwater in ethanol production. This process combines the use of vinasse and anaerobic digestion effluent to produce biogas energies. The effect of reusing 0, 30, 60, and 100% effluent to dilute sugarcane molasses to produce ethanol was evaluated. The viability and vitality of the cells of the yeast were not altered by using the effluent. The efficiency of ethanol production with effluent (0, 30, 60, and 100%) was 43.3, 42.3, 39.2, 38.4 g/L, respectively. Also, we tested reusing 100% effluent without treatment for dilution of sucrose. This assay gave the highest ethanol production (80.6 g/L). The difference in ethanol production might be due to a wide range of buffering capacity of the combination of molasses and effluent, which moderately affected the performance of Saccharomyces cerevisiae. Nonetheless, additional research is required to determine a causal relationship between the buffer capacity of the molasses/effluent mixture and ethanol production.
AB - Current global prospects of increasing ethanol production face the problem of one of the highest consumptions of fresh water and the generation of large volumes of effluents. This study evaluated the reuse of effluent from the anaerobic digestion of vinasse as a replacement of freshwater in ethanol production. This process combines the use of vinasse and anaerobic digestion effluent to produce biogas energies. The effect of reusing 0, 30, 60, and 100% effluent to dilute sugarcane molasses to produce ethanol was evaluated. The viability and vitality of the cells of the yeast were not altered by using the effluent. The efficiency of ethanol production with effluent (0, 30, 60, and 100%) was 43.3, 42.3, 39.2, 38.4 g/L, respectively. Also, we tested reusing 100% effluent without treatment for dilution of sucrose. This assay gave the highest ethanol production (80.6 g/L). The difference in ethanol production might be due to a wide range of buffering capacity of the combination of molasses and effluent, which moderately affected the performance of Saccharomyces cerevisiae. Nonetheless, additional research is required to determine a causal relationship between the buffer capacity of the molasses/effluent mixture and ethanol production.
KW - Anaerobic digestion
KW - Effluent
KW - Ethanol
KW - S. cerevisiae
KW - Sugarcane-molasses
KW - Vinasse
UR - http://www.scopus.com/inward/record.url?scp=85108151141&partnerID=8YFLogxK
U2 - 10.1016/j.eti.2021.101677
DO - 10.1016/j.eti.2021.101677
M3 - Artículo
AN - SCOPUS:85108151141
SN - 2352-1864
VL - 23
JO - Environmental Technology and Innovation
JF - Environmental Technology and Innovation
M1 - 101677
ER -