Biohydrogen production: Strategies to improve process efficiency through microbial routes

Kuppam Chandrasekhar, Yong Jik Lee, Dong Woo Lee

Research output: Contribution to journalReview article

91 Citations (Scopus)

Abstract

The current fossil fuel-based generation of energy has led to large-scale industrial development. However, the reliance on fossil fuels leads to the significant depletion of natural resources of buried combustible geologic deposits and to negative effects on the global climate with emissions of greenhouse gases. Accordingly, enormous efforts are directed to transition from fossil fuels to nonpolluting and renewable energy sources. One potential alternative is biohydrogen (H2), a clean energy carrier with high-energy yields; upon the combustion of H2, H2O is the only major by-product. In recent decades, the attractive and renewable characteristics of H2 led us to develop a variety of biological routes for the production of H2. Based on the mode of H2 generation, the biological routes for H2 production are categorized into four groups: photobiological fermentation, anaerobic fermentation, enzymatic and microbial electrolysis, and a combination of these processes. Thus, this review primarily focuses on the evaluation of the biological routes for the production of H2. In particular, we assess the efficiency and feasibility of these bioprocesses with respect to the factors that affect operations, and we delineate the limitations. Additionally, alternative options such as bioaugmentation, multiple process integration, and microbial electrolysis to improve process efficiency are discussed to address industrial-level applications.

Original languageEnglish
Pages (from-to)8266-8293
Number of pages28
JournalInternational journal of molecular sciences
Volume16
Issue number4
DOIs
Publication statusPublished - 2015 Apr 14

Fingerprint

Fossil Fuels
fossil fuels
Fossil fuels
Electrolysis
fermentation
routes
electrolysis
Fermentation
Renewable Energy
clean energy
renewable energy
greenhouses
Natural resources
energy sources
Climate
Greenhouse gases
climate
Byproducts
energy
resources

All Science Journal Classification (ASJC) codes

  • Catalysis
  • Molecular Biology
  • Spectroscopy
  • Computer Science Applications
  • Physical and Theoretical Chemistry
  • Organic Chemistry
  • Inorganic Chemistry

Cite this

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Biohydrogen production : Strategies to improve process efficiency through microbial routes. / Chandrasekhar, Kuppam; Lee, Yong Jik; Lee, Dong Woo.

In: International journal of molecular sciences, Vol. 16, No. 4, 14.04.2015, p. 8266-8293.

Research output: Contribution to journalReview article

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