Pretreatment of food waste for methane and hydrogen recovery: A review

Obulisamy Parthiba Karthikeyan, Eric Trably, Sanjeet Mehariya, Nicolas Bernet, Jonathan W C WONG*, Hélène Carrere

*Corresponding author for this work

Research output: Contribution to journalReview articlepeer-review

233 Citations (Scopus)


Food waste (FW) management by biological process is more attractive and eco-friendly approach than thermo-chemical conversion or landfilling. However, FW composition and physico-chemical and biological characteristics affect the overall biological process in terms of product yield and degradation rate. To overcome this major bottle-neck, the pretreatment of FW is proposed. Therefore this review aims to provide a comprehensive summary of the importance of pretreatment of FW with respect to FW management by anaerobic digestion (AD) and dark fermentation (DF). It also reviews the existing knowledge gaps and future research perspectives for better integration of FW pretreatments for AD and DF, which should include (i) the preservation of carbon mass through freeze and thaw, or drying; and (ii) improve the carbon accessibility through particle size reduction and thermal pretreatments for high-rate bioenergy recovery.

Original languageEnglish
Pages (from-to)1025-1039
Number of pages15
JournalBioresource Technology
Publication statusPublished - Feb 2018

Scopus Subject Areas

  • Bioengineering
  • Environmental Engineering
  • Renewable Energy, Sustainability and the Environment
  • Waste Management and Disposal

User-Defined Keywords

  • Anaerobic digestion
  • Biogas
  • Biohydrogen
  • Biowaste
  • Dark fermentation


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