Abstract
The feasibility of producing hydrogen and methane via a two-stage fermentation of tequila vinasses was evaluated in sequencing batch (SBR) and up-flow anaerobic sludge blanket (UASB) reactors. Different vinasses concentrations ranging from 500 mg COD/L to 16 g COD/L were studied in SBR by using thermally pre-treated anaerobic sludge as inoculum for hydrogen production. Peak volumetric hydrogen production rate and specific hydrogen production were attained as 57.4 ± 4.0 mL H2/L-h and 918 ± 63 mL H2/gVSS-d, at the substrate concentration of 16 g COD/L and 6 h of hydraulic retention time (HRT). Increasing substrate concentration has no effect on the specific hydrogen production rate. The fermentation effluent was used for methane production in an UASB reactor. The higher methane composition in the biogas was achieved as 68% at an influent concentration of 1636 mg COD/L. Peak methane volumetric, specific production rates and yield were attained as 11.7 ± 0.7 mL CH4/L-h, 7.2 ± 0.4 mL CH4/g COD-h and 257.9 ± 13.8 mL CH4/g COD at 24 h-HRT and a substrate concentration of 1636 mg COD/L. An overall organic matter removal (SBR + UASB) in this two-stage process of 73-75% was achieved.
| Original language | English |
|---|---|
| Pages (from-to) | 19249-19255 |
| Number of pages | 7 |
| Journal | International Journal of Hydrogen Energy |
| Volume | 39 |
| Issue number | 33 |
| DOIs | |
| Publication status | Published - 2014 Nov 11 |
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All Science Journal Classification (ASJC) codes
- Renewable Energy, Sustainability and the Environment
- Fuel Technology
- Condensed Matter Physics
- Energy Engineering and Power Technology
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Hydrogen and methane production via a two-stage processes (H2-SBR + CH4-UASB) using tequila vinasses. / Buitrón, Germán; Kumar, Gopalakrishnan; Martinez-Arce, Andrés; Moreno, Gloria.
In: International Journal of Hydrogen Energy, Vol. 39, No. 33, 11.11.2014, p. 19249-19255.Research output: Contribution to journal › Article
TY - JOUR
T1 - Hydrogen and methane production via a two-stage processes (H2-SBR + CH4-UASB) using tequila vinasses
AU - Buitrón, Germán
AU - Kumar, Gopalakrishnan
AU - Martinez-Arce, Andrés
AU - Moreno, Gloria
PY - 2014/11/11
Y1 - 2014/11/11
N2 - The feasibility of producing hydrogen and methane via a two-stage fermentation of tequila vinasses was evaluated in sequencing batch (SBR) and up-flow anaerobic sludge blanket (UASB) reactors. Different vinasses concentrations ranging from 500 mg COD/L to 16 g COD/L were studied in SBR by using thermally pre-treated anaerobic sludge as inoculum for hydrogen production. Peak volumetric hydrogen production rate and specific hydrogen production were attained as 57.4 ± 4.0 mL H2/L-h and 918 ± 63 mL H2/gVSS-d, at the substrate concentration of 16 g COD/L and 6 h of hydraulic retention time (HRT). Increasing substrate concentration has no effect on the specific hydrogen production rate. The fermentation effluent was used for methane production in an UASB reactor. The higher methane composition in the biogas was achieved as 68% at an influent concentration of 1636 mg COD/L. Peak methane volumetric, specific production rates and yield were attained as 11.7 ± 0.7 mL CH4/L-h, 7.2 ± 0.4 mL CH4/g COD-h and 257.9 ± 13.8 mL CH4/g COD at 24 h-HRT and a substrate concentration of 1636 mg COD/L. An overall organic matter removal (SBR + UASB) in this two-stage process of 73-75% was achieved.
AB - The feasibility of producing hydrogen and methane via a two-stage fermentation of tequila vinasses was evaluated in sequencing batch (SBR) and up-flow anaerobic sludge blanket (UASB) reactors. Different vinasses concentrations ranging from 500 mg COD/L to 16 g COD/L were studied in SBR by using thermally pre-treated anaerobic sludge as inoculum for hydrogen production. Peak volumetric hydrogen production rate and specific hydrogen production were attained as 57.4 ± 4.0 mL H2/L-h and 918 ± 63 mL H2/gVSS-d, at the substrate concentration of 16 g COD/L and 6 h of hydraulic retention time (HRT). Increasing substrate concentration has no effect on the specific hydrogen production rate. The fermentation effluent was used for methane production in an UASB reactor. The higher methane composition in the biogas was achieved as 68% at an influent concentration of 1636 mg COD/L. Peak methane volumetric, specific production rates and yield were attained as 11.7 ± 0.7 mL CH4/L-h, 7.2 ± 0.4 mL CH4/g COD-h and 257.9 ± 13.8 mL CH4/g COD at 24 h-HRT and a substrate concentration of 1636 mg COD/L. An overall organic matter removal (SBR + UASB) in this two-stage process of 73-75% was achieved.
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U2 - 10.1016/j.ijhydene.2014.04.139
DO - 10.1016/j.ijhydene.2014.04.139
M3 - Article
AN - SCOPUS:84908275711
VL - 39
SP - 19249
EP - 19255
JO - International Journal of Hydrogen Energy
JF - International Journal of Hydrogen Energy
SN - 0360-3199
IS - 33
ER -