Continuous biohydrogen production in a CSTR using starch as a substrate

Muhammad Farhan Arooj, Sun Kee Han, Sang-Hyoun Kim, Dong Hoon Kim, Hang Sik Shin

Research output: Contribution to journalArticle

111 Citations (Scopus)

Abstract

There are few reports on continuous biohydrogen production from biopolymers like starch, because most previous studies on continuous operation were performed using simple hydrolysates such as glucose and sucrose. This study was, therefore, carried out to investigate continuous biohydrogen production in an anaerobic continuous stirred-tank reactor (CSTR) using corn starch as a substrate for 158 days. The reactor was seeded with mixed community sludge from an anaerobic digester at a local wastewater treatment facility. Volatile fatty acids (VFA) profile supported the fact that butyrate to acetate (B/A) ratio was the most important parameter to justify hydrogen yield at various hydraulic retention times (HRT). Maximum hydrogen yield of 0.92 mol H2/mol glucoseadded was observed at 12 h HRT with the highest B/A ratio of 4.3. Also, estimation modeling to quantify homoacetogenism was conducted and H2-consuming acetate production at various HRTs was estimated. Estimation modeling revealed that at short HRTs of 9, 6 and 4 h, acetate concentration plays a trivial role. Therefore, butyrate concentration alone instead of butyrate to acetate ratio (B/A) justifies the trend of H2 yield at short HRTs.

Original languageEnglish
Pages (from-to)3289-3294
Number of pages6
JournalInternational Journal of Hydrogen Energy
Volume33
Issue number13
DOIs
Publication statusPublished - 2008 Jul 1

Fingerprint

starches
Starch
Butyrates
acetates
Acetates
reactors
Substrates
Hydraulics
Volatile fatty acids
Hydrogen
Biopolymers
Sugar (sucrose)
Wastewater treatment
hydraulics
Glucose
corn
sludge
Volatile Fatty Acids
sucrose
biopolymers

All Science Journal Classification (ASJC) codes

  • Electrochemistry
  • Fuel Technology
  • Renewable Energy, Sustainability and the Environment

Cite this

Arooj, Muhammad Farhan ; Han, Sun Kee ; Kim, Sang-Hyoun ; Kim, Dong Hoon ; Shin, Hang Sik. / Continuous biohydrogen production in a CSTR using starch as a substrate. In: International Journal of Hydrogen Energy. 2008 ; Vol. 33, No. 13. pp. 3289-3294.
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Continuous biohydrogen production in a CSTR using starch as a substrate. / Arooj, Muhammad Farhan; Han, Sun Kee; Kim, Sang-Hyoun; Kim, Dong Hoon; Shin, Hang Sik.

In: International Journal of Hydrogen Energy, Vol. 33, No. 13, 01.07.2008, p. 3289-3294.

Research output: Contribution to journalArticle

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