TY - JOUR
T1 - Study of factors involved in the behavior of biofilms formed by biohydrogen-producing microflora identified by molecular biology using dairy wastewater
AU - Ayil-Gutiérrez, B. A.
AU - Tamayo-Ordoñez, M. C.
AU - Silva Belmares, S. Y.
AU - Morales-Martínez, T. K.
AU - Rodríguez-De la Garza, J. A.
AU - Medina Morales, M. A.
AU - Soria Ortiz, A. I.
AU - Gutiérrez Rodríguez, B.
AU - Ríos-González, L. J.
AU - Sosa Santillán, G. J.
AU - Moreno Dávila, I. M.M.
N1 - Publisher Copyright:
© 2021 Hydrogen Energy Publications LLC
PY - 2021/7/26
Y1 - 2021/7/26
N2 - Batch tests were carried out to investigate the production of H2 considering the effects of: substrate concentration in a range of 3–25 g-COD/L; Initial pH: from 4 to 7 and 11 and temperatures of: 20, 35, 45 and 55 °C. The optimal substrate was 25 g-COD/L, with a reduction of COD of 73% and a yield of H2 of 5.95 mM/gCOD; and the optimal initial pH was 11.0, with a 70% of COD reduction and a H2 yield of 4236 mM/gCOD. The optimum temperature for pH = 11 was 35 °C, with a COD reduction of 69.8% and H2 yield of 6.3 mM/gCOD. Escherichia, Acinetobacter, Alcaligenes, Brevibacterium, Clostridium and Mycobacterium were isolated from pretreated inoculum samples and identified by 16S rDNA sequencing. The results suggest that biofilm reactors developed on a natural support such as Opuntia imbricata have good potential for hydrogen production from dairy wastewater.
AB - Batch tests were carried out to investigate the production of H2 considering the effects of: substrate concentration in a range of 3–25 g-COD/L; Initial pH: from 4 to 7 and 11 and temperatures of: 20, 35, 45 and 55 °C. The optimal substrate was 25 g-COD/L, with a reduction of COD of 73% and a yield of H2 of 5.95 mM/gCOD; and the optimal initial pH was 11.0, with a 70% of COD reduction and a H2 yield of 4236 mM/gCOD. The optimum temperature for pH = 11 was 35 °C, with a COD reduction of 69.8% and H2 yield of 6.3 mM/gCOD. Escherichia, Acinetobacter, Alcaligenes, Brevibacterium, Clostridium and Mycobacterium were isolated from pretreated inoculum samples and identified by 16S rDNA sequencing. The results suggest that biofilm reactors developed on a natural support such as Opuntia imbricata have good potential for hydrogen production from dairy wastewater.
KW - Biohydrogen
KW - Diary wastewater
KW - Opuntia imbricata
UR - http://www.scopus.com/inward/record.url?scp=85109107817&partnerID=8YFLogxK
U2 - 10.1016/j.ijhydene.2021.06.039
DO - 10.1016/j.ijhydene.2021.06.039
M3 - Artículo
AN - SCOPUS:85109107817
SN - 0360-3199
VL - 46
SP - 25965
EP - 25973
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
IS - 51
ER -
