Surfactant-enhanced biohydrogen production from organic fraction of municipal solid waste (OFMSW) via dry anaerobic digestion

  • M. Elsamadony*
  • , A. Tawfik
  • , M. Suzuki
  • *Corresponding author for this work

Research output: Contribution to journalArticlepeer-review

68 Scopus citations

Abstract

The influence of surfactant addition on the hydrogen fermentative of the organic fraction of municipal solid waste was extensively investigated under thermophilic conditions (55±2°C) in batch cultures. The addition of Tween 80® (T80) and polyethylene glycol (PEG 6000®) substantially improved hydrogen yields (HYs) resulting in 109.9±7.1 and 113.8±7.7mlH2/gCarb.initial at T80 and PEG 6000® concentrations not exceeding 2.8% and 16.7g/L, respectively. A combination of 2.8% T80 with 1.7g/L PEG 6000® achieved slightly higher HYs of 116.7±5.2mlH2/gCarb.initial. An artificial neural network model reliably represented the relationship between the surfactant concentration and hydrogen production with a correlation coefficient (R2) of 0.980. Microbial community analysis of the batches supplemented with 2.8% T80 and 1.7g/L PEG 6000® showed the dominance of the hydrogen-producing bacteria Enterobacter, Escherichia, Buttiauxella, and Pantoea. The study confirms the potential of surfactant addition for H2 production from wastes containing organics in a particulate form.

Original languageEnglish
Pages (from-to)272-282
Number of pages11
JournalApplied Energy
Volume149
DOIs
StatePublished - 1 Jul 2015
Externally publishedYes

Bibliographical note

Publisher Copyright:
© 2015 Elsevier Ltd.

Keywords

  • Dry anaerobic digestion
  • Hydrogen
  • Organic fraction of municipal solid waste
  • Polyethylene glycol 6000
  • Tween 80

ASJC Scopus subject areas

  • Building and Construction
  • Renewable Energy, Sustainability and the Environment
  • Mechanical Engineering
  • General Energy
  • Management, Monitoring, Policy and Law

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