Improvement of biohydrogen production under increased the reactor size by C. acetobutylicum NCIMB 13357

Hisham Salem Alshiyab, Mohd. Sahaid Kalil, Aidil Abdul Hamid, Wan Mohtar Wan Yusoff

Research output: Contribution to journalArticle

5 Citations (Scopus)

Abstract

One of the main factors influenced the bacterial productivity and total yield of hydrogen is the partial pressure of produced gas. A novel solution to enhance the bacterial productivity was through reduction of gas pressure. Approach: Increasing the reactor size showed to enhance the bacterial production of hydrogen. Results: The technique of increasing reactor size resulted to enhance the hydrogen yield (YP/S) from 269 mL g-1 glucose utilized to maximum yield of 448 mL g-1 glucose utilized by using 125 mL and 2 L reactor size respectively. The hydrogen productivity was also enhanced from 71 mL-1 h-1 to maximum of 91 mL L -1 h-1 was obtained by using 125 mL and 1 L reactor size respectively. Biomass concentration was enhanced from 1.03 g L-1 to maximum of 1.68 g L-1 by using 125 mL and 2 L reactor size were used respectively, hydrogen yield per biomass (YP/X) of 267 mL g -1 L-1, biomass per substrate utilized (YX/S) of 0.336 and produced hydrogen in gram per gram of glucose utilized (Y H2/s) of 0.04 when 2 L reactor size was employed. Conclusion: By using bigger reactor size, the effect of gaseous products in fermentation medium was reduced and enhanced both bacterial productivity and biomass concentration.

Original languageEnglish
Pages (from-to)33-40
Number of pages8
JournalAmerican Journal of Environmental Sciences
Volume5
Issue number1
DOIs
Publication statusPublished - 2009

Fingerprint

Hydrogen
hydrogen
Biomass
Productivity
Glucose
productivity
glucose
biomass
Gases
Partial pressure
Fermentation
reactor
partial pressure
gas
fermentation
substrate
Substrates

Keywords

  • Biohydrogen
  • C. acetobutylicum
  • Glucose
  • Reactor size

ASJC Scopus subject areas

  • Pollution
  • Ecology

Cite this

Improvement of biohydrogen production under increased the reactor size by C. acetobutylicum NCIMB 13357. / Alshiyab, Hisham Salem; Kalil, Mohd. Sahaid; Abdul Hamid, Aidil; Wan Yusoff, Wan Mohtar.

In: American Journal of Environmental Sciences, Vol. 5, No. 1, 2009, p. 33-40.

Research output: Contribution to journalArticle

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