Investigating the effects of iron and nickel nanoparticles on dark hydrogen fermentation from starch using central composite design

Mohsen Taherdanak, Hamid Zilouei, Keikhosro Karimi

Research output: Contribution to journalArticlepeer-review

100 Citations (Scopus)

Abstract

The effects of Fe0 and Ni0 nanoparticles on mesophilic dark hydrogen fermentation from starch were investigated using heat-shock pretreated anaerobic sludge in batch reactors. Starch concentration in the range of 0-20 g/L was used in the presence of 0-50 mg/L of each Fe0 and Ni0 nanoparticles while the initial pH of all experiments was adjusted to 7. The hydrogen production was optimized using response surface methodology (RSM) in a central composite design (CCD) mode. The results showed the significance of the linear effect of starch and Fe0 concentrations, the interactive effect between Fe0 and Ni0 concentrations, and the squared effect of starch concentration on the biohydrogen production. The maximum yield of hydrogen production 149.8 mL/g-VS was obtained at starch, Fe0 and Ni0 concentrations of 5.37 g/L, 37.5 mg/L, and 37.5 mg/L, respectively. This was nearly 200% higher than those in the corresponding control test. Moreover, the analysis of metabolites indicated the hydrogen production through acetic acid pathway.

Original languageEnglish
Article number16411
Pages (from-to)12956-12963
Number of pages8
JournalInternational Journal of Hydrogen Energy
Volume40
Issue number38
DOIs
Publication statusPublished - 15 Oct 2015

Bibliographical note

Publisher Copyright:
© 2015 Hydrogen Energy Publications, LLC.

Keywords

  • Biohydrogen
  • Dark fermentation
  • Fe and Ni nanoparticle
  • Response surface methodology
  • Starch

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