Application of an electric field for pretreatment of a seeding source for dark fermentative hydrogen production

Da Young Jeong; Si Kyung Cho; Hang Sik Shin; Kyung Won Jung

doi:10.1016/j.biortech.2013.04.039

Application of an electric field for pretreatment of a seeding source for dark fermentative hydrogen production

Da Young Jeong
, Si Kyung Cho
, Hang Sik Shin
, Kyung Won Jung

Department of Convergent Environmental Science

Korea Advanced Institute of Science and Technology

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

39 Scopus citations

Abstract

In present study, an electric field was newly adopted as a pretreatment method for inoculum preparation in dark fermentative hydrogen production. Various voltages (5-20V for 10min) were applied, and the feasibility and efficiency of this method were compared with those of heat pretreatment (90°C for 20min). Both the highest H₂ yield, 1.43mol H₂/molhexose_added, and the highest production rate, 101.4mLH₂/L/h, were observed at 10V. While RNA concentration of above 100mg/L was maintained up to 10V, it was decreased at an applied voltage of 20V, where the worst performance was observed. Microbial analysis results confirmed that only H₂ producing bacteria were detected with electric pretreatment, while non-H₂ producing bacteria coexist with heat and electric (5V) pretreatment. The results suggested that application of an electric field has reasonable potential as an alternative method for preparing inoculums for hydrogen production.

Original language	English
Pages (from-to)	393-396
Number of pages	4
Journal	Bioresource Technology
Volume	139
DOIs	https://doi.org/10.1016/j.biortech.2013.04.039
State	Published - Jul 2013

UN SDGs

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

SDG 7 Affordable and Clean Energy

Keywords

Electric pretreatment
RNA concentration

Access to Document

10.1016/j.biortech.2013.04.039

Cite this

@article{f42739d7d6814891936fa5e9807257ab,

title = "Application of an electric field for pretreatment of a seeding source for dark fermentative hydrogen production",

abstract = "In present study, an electric field was newly adopted as a pretreatment method for inoculum preparation in dark fermentative hydrogen production. Various voltages (5-20V for 10min) were applied, and the feasibility and efficiency of this method were compared with those of heat pretreatment (90°C for 20min). Both the highest H2 yield, 1.43mol H2/molhexoseadded, and the highest production rate, 101.4mLH2/L/h, were observed at 10V. While RNA concentration of above 100mg/L was maintained up to 10V, it was decreased at an applied voltage of 20V, where the worst performance was observed. Microbial analysis results confirmed that only H2 producing bacteria were detected with electric pretreatment, while non-H2 producing bacteria coexist with heat and electric (5V) pretreatment. The results suggested that application of an electric field has reasonable potential as an alternative method for preparing inoculums for hydrogen production.",

keywords = "Electric pretreatment, RNA concentration",

author = "Jeong, \{Da Young\} and Cho, \{Si Kyung\} and Shin, \{Hang Sik\} and Jung, \{Kyung Won\}",

year = "2013",

month = jul,

doi = "10.1016/j.biortech.2013.04.039",

language = "English",

volume = "139",

pages = "393--396",

journal = "Bioresource Technology",

issn = "0960-8524",

publisher = "Elsevier Ltd",

}

TY - JOUR

T1 - Application of an electric field for pretreatment of a seeding source for dark fermentative hydrogen production

AU - Jeong, Da Young

AU - Cho, Si Kyung

AU - Shin, Hang Sik

AU - Jung, Kyung Won

PY - 2013/7

Y1 - 2013/7

N2 - In present study, an electric field was newly adopted as a pretreatment method for inoculum preparation in dark fermentative hydrogen production. Various voltages (5-20V for 10min) were applied, and the feasibility and efficiency of this method were compared with those of heat pretreatment (90°C for 20min). Both the highest H2 yield, 1.43mol H2/molhexoseadded, and the highest production rate, 101.4mLH2/L/h, were observed at 10V. While RNA concentration of above 100mg/L was maintained up to 10V, it was decreased at an applied voltage of 20V, where the worst performance was observed. Microbial analysis results confirmed that only H2 producing bacteria were detected with electric pretreatment, while non-H2 producing bacteria coexist with heat and electric (5V) pretreatment. The results suggested that application of an electric field has reasonable potential as an alternative method for preparing inoculums for hydrogen production.

AB - In present study, an electric field was newly adopted as a pretreatment method for inoculum preparation in dark fermentative hydrogen production. Various voltages (5-20V for 10min) were applied, and the feasibility and efficiency of this method were compared with those of heat pretreatment (90°C for 20min). Both the highest H2 yield, 1.43mol H2/molhexoseadded, and the highest production rate, 101.4mLH2/L/h, were observed at 10V. While RNA concentration of above 100mg/L was maintained up to 10V, it was decreased at an applied voltage of 20V, where the worst performance was observed. Microbial analysis results confirmed that only H2 producing bacteria were detected with electric pretreatment, while non-H2 producing bacteria coexist with heat and electric (5V) pretreatment. The results suggested that application of an electric field has reasonable potential as an alternative method for preparing inoculums for hydrogen production.

KW - Electric pretreatment

KW - RNA concentration

UR - https://www.scopus.com/pages/publications/84886258348

U2 - 10.1016/j.biortech.2013.04.039

DO - 10.1016/j.biortech.2013.04.039

M3 - Article

C2 - 23664066

AN - SCOPUS:84886258348

SN - 0960-8524

VL - 139

SP - 393

EP - 396

JO - Bioresource Technology

JF - Bioresource Technology

ER -

Application of an electric field for pretreatment of a seeding source for dark fermentative hydrogen production

Abstract

UN SDGs

Keywords

Access to Document

Other files and links

Fingerprint

Cite this