Effect of shear velocity on dark fermentation for biohydrogen production using dynamic membrane

Young Bo Sim; Ju Hyeong Jung; Jong Hun Park; Péter Bakonyi; Sang Hyoun Kim

doi:10.1016/j.biortech.2020.123265

Effect of shear velocity on dark fermentation for biohydrogen production using dynamic membrane

Young Bo Sim, Ju Hyeong Jung, Jong Hun Park, Péter Bakonyi, Sang Hyoun Kim

Department of Civil and Environmental Engineering

Research output: Contribution to journal › Article › peer-review

13 Citations (Scopus)

Abstract

This study examined the effect of shear velocity on biohydrogen producing dynamic membrane bioreactor (DMBR) containing 50 µm polyester mesh as supporting material. Increase of shear velocity up to 6.75 m/h enhanced hydrogen production performance as well as biomass retention in both suspended and attached forms, while wash-out was found at a shear velocity of 11.69 m/h. The highest average HPR, HY, suspended biomass, and attached biomass were 26.56 ± 1.49 L/L-d, 1.78 ± 0.10 mol H₂/mol glucose_added, 9.99 ± 0.11 g VSS/L, and 8.82 g VSS/L, respectively, at a shear velocity of 6.75 m/h. Flux balance analysis showed homoacetogenic pathway decreased at the shear velocity of 4.70 m/h with the increase of hydrogen yield based on consumed substrate. The highest copy numbers of Clostridium butyricum was found at the optimum shear velocity. Shear velocity would be a critical operational criteria for continuous biohydrogen production using DMBR.

Original language	English
Article number	123265
Journal	Bioresource technology
Volume	308
DOIs	https://doi.org/10.1016/j.biortech.2020.123265
Publication status	Published - 2020 Jul

Bibliographical note

Funding Information:
This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT, MSIT) ( NRF-2019M3E6A1103839 ).

Publisher Copyright:
© 2020 Elsevier Ltd

All Science Journal Classification (ASJC) codes

Bioengineering
Environmental Engineering
Renewable Energy, Sustainability and the Environment
Waste Management and Disposal

UN SDGs

This output contributes to the following UN Sustainable Development Goals (SDGs)

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10.1016/j.biortech.2020.123265

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title = "Effect of shear velocity on dark fermentation for biohydrogen production using dynamic membrane",

abstract = "This study examined the effect of shear velocity on biohydrogen producing dynamic membrane bioreactor (DMBR) containing 50 µm polyester mesh as supporting material. Increase of shear velocity up to 6.75 m/h enhanced hydrogen production performance as well as biomass retention in both suspended and attached forms, while wash-out was found at a shear velocity of 11.69 m/h. The highest average HPR, HY, suspended biomass, and attached biomass were 26.56 ± 1.49 L/L-d, 1.78 ± 0.10 mol H2/mol glucoseadded, 9.99 ± 0.11 g VSS/L, and 8.82 g VSS/L, respectively, at a shear velocity of 6.75 m/h. Flux balance analysis showed homoacetogenic pathway decreased at the shear velocity of 4.70 m/h with the increase of hydrogen yield based on consumed substrate. The highest copy numbers of Clostridium butyricum was found at the optimum shear velocity. Shear velocity would be a critical operational criteria for continuous biohydrogen production using DMBR.",

author = "Sim, {Young Bo} and Jung, {Ju Hyeong} and Park, {Jong Hun} and P{\'e}ter Bakonyi and Kim, {Sang Hyoun}",

note = "Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT, MSIT) ( NRF-2019M3E6A1103839 ). Publisher Copyright: {\textcopyright} 2020 Elsevier Ltd",

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AU - Jung, Ju Hyeong

AU - Park, Jong Hun

AU - Bakonyi, Péter

AU - Kim, Sang Hyoun

N1 - Funding Information: This work was supported by the National Research Foundation of Korea (NRF) grant funded by the Korea government (Ministry of Science and ICT, MSIT) ( NRF-2019M3E6A1103839 ). Publisher Copyright: © 2020 Elsevier Ltd

PY - 2020/7

Y1 - 2020/7

N2 - This study examined the effect of shear velocity on biohydrogen producing dynamic membrane bioreactor (DMBR) containing 50 µm polyester mesh as supporting material. Increase of shear velocity up to 6.75 m/h enhanced hydrogen production performance as well as biomass retention in both suspended and attached forms, while wash-out was found at a shear velocity of 11.69 m/h. The highest average HPR, HY, suspended biomass, and attached biomass were 26.56 ± 1.49 L/L-d, 1.78 ± 0.10 mol H2/mol glucoseadded, 9.99 ± 0.11 g VSS/L, and 8.82 g VSS/L, respectively, at a shear velocity of 6.75 m/h. Flux balance analysis showed homoacetogenic pathway decreased at the shear velocity of 4.70 m/h with the increase of hydrogen yield based on consumed substrate. The highest copy numbers of Clostridium butyricum was found at the optimum shear velocity. Shear velocity would be a critical operational criteria for continuous biohydrogen production using DMBR.

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Effect of shear velocity on dark fermentation for biohydrogen production using dynamic membrane

Abstract

Bibliographical note

All Science Journal Classification (ASJC) codes

UN SDGs

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