Assessing optimal fermentation type for bio-hydrogen production in continuous-flow acidogenic reactors

N. Q. Ren; H. Chua; S. Y. Chan; Y. F. Tsang; Y. J. Wang; N. Sin

doi:10.1016/j.biortech.2006.07.026

Assessing optimal fermentation type for bio-hydrogen production in continuous-flow acidogenic reactors

N. Q. Ren
, H. Chua
, S. Y. Chan^*
, Y. F. Tsang
, Y. J. Wang
, N. Sin

^*Corresponding author for this work

School of Environment

Hong Kong Polytechnic University

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

284 Scopus citations

Abstract

In this study, the optimal fermentation type and the operating conditions of anaerobic process in continuous-flow acidogenic reactors was investigated for the maximization of bio-hydrogen production using mixed cultures. Butyric acid type fermentation occurred at pH > 6, propionic acid type fermentation occurred at pH about 5.5 with E_h (redox potential) >-278 mV, and ethanol-type fermentation occurred at pH < 4.5. The representative strains of these fermentations were Clostridium sp., Propionibacterium sp. and Bacteriodes sp., respectively. Ethanol fermentation was optimal type by comparing the operating stabilities and hydrogen production capacities between the fermentation types, which remained stable when the organic loading rate (OLR) reached the highest OLR at 86.1 kg COD/m³ d. The maximum hydrogen production reached up to 14.99 L/d.

Original language	English
Pages (from-to)	1774-1780
Number of pages	7
Journal	Bioresource Technology
Volume	98
Issue number	9
DOIs	https://doi.org/10.1016/j.biortech.2006.07.026
State	Published - Jul 2007

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Bio-hydrogen
Ethanol-type fermentation
Fermentation types
Redox potential
pH

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10.1016/j.biortech.2006.07.026

Cite this

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title = "Assessing optimal fermentation type for bio-hydrogen production in continuous-flow acidogenic reactors",

abstract = "In this study, the optimal fermentation type and the operating conditions of anaerobic process in continuous-flow acidogenic reactors was investigated for the maximization of bio-hydrogen production using mixed cultures. Butyric acid type fermentation occurred at pH > 6, propionic acid type fermentation occurred at pH about 5.5 with Eh (redox potential) >-278 mV, and ethanol-type fermentation occurred at pH < 4.5. The representative strains of these fermentations were Clostridium sp., Propionibacterium sp. and Bacteriodes sp., respectively. Ethanol fermentation was optimal type by comparing the operating stabilities and hydrogen production capacities between the fermentation types, which remained stable when the organic loading rate (OLR) reached the highest OLR at 86.1 kg COD/m3 d. The maximum hydrogen production reached up to 14.99 L/d.",

keywords = "Bio-hydrogen, Ethanol-type fermentation, Fermentation types, Redox potential, pH",

author = "Ren, \{N. Q.\} and H. Chua and Chan, \{S. Y.\} and Tsang, \{Y. F.\} and Wang, \{Y. J.\} and N. Sin",

year = "2007",

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doi = "10.1016/j.biortech.2006.07.026",

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AU - Ren, N. Q.

AU - Chua, H.

AU - Chan, S. Y.

AU - Tsang, Y. F.

AU - Wang, Y. J.

AU - Sin, N.

PY - 2007/7

Y1 - 2007/7

N2 - In this study, the optimal fermentation type and the operating conditions of anaerobic process in continuous-flow acidogenic reactors was investigated for the maximization of bio-hydrogen production using mixed cultures. Butyric acid type fermentation occurred at pH > 6, propionic acid type fermentation occurred at pH about 5.5 with Eh (redox potential) >-278 mV, and ethanol-type fermentation occurred at pH < 4.5. The representative strains of these fermentations were Clostridium sp., Propionibacterium sp. and Bacteriodes sp., respectively. Ethanol fermentation was optimal type by comparing the operating stabilities and hydrogen production capacities between the fermentation types, which remained stable when the organic loading rate (OLR) reached the highest OLR at 86.1 kg COD/m3 d. The maximum hydrogen production reached up to 14.99 L/d.

AB - In this study, the optimal fermentation type and the operating conditions of anaerobic process in continuous-flow acidogenic reactors was investigated for the maximization of bio-hydrogen production using mixed cultures. Butyric acid type fermentation occurred at pH > 6, propionic acid type fermentation occurred at pH about 5.5 with Eh (redox potential) >-278 mV, and ethanol-type fermentation occurred at pH < 4.5. The representative strains of these fermentations were Clostridium sp., Propionibacterium sp. and Bacteriodes sp., respectively. Ethanol fermentation was optimal type by comparing the operating stabilities and hydrogen production capacities between the fermentation types, which remained stable when the organic loading rate (OLR) reached the highest OLR at 86.1 kg COD/m3 d. The maximum hydrogen production reached up to 14.99 L/d.

KW - Bio-hydrogen

KW - Ethanol-type fermentation

KW - Fermentation types

KW - Redox potential

KW - pH

UR - https://www.scopus.com/pages/publications/33846691260

U2 - 10.1016/j.biortech.2006.07.026

DO - 10.1016/j.biortech.2006.07.026

M3 - 文章

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AN - SCOPUS:33846691260

SN - 0960-8524

VL - 98

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EP - 1780

JO - Bioresource Technology

JF - Bioresource Technology

IS - 9

ER -

Assessing optimal fermentation type for bio-hydrogen production in continuous-flow acidogenic reactors

Abstract

UN SDGs

Keywords

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