Biomethane production through anaerobic co-digestion with Maize Cob Waste based on a biorefinery concept: A review

Research output: Contribution to journalReview article

6 Citations (Scopus)

Abstract

Maize Cob Waste (MCW) is available worldwide in high amounts, as maize is the most produced cereal in the world. MCW is generally left in the crop fields, but due to its low biodegradability it has a negligible impact in soil fertility. Moreover, MCW can be used as substrate to balance the C/N ratio during the Anaerobic co-Digestion (AcoD) with other biodegradable substrates, and is an excellent precursor for the production of Activated Carbons (ACs). In this context, a biorefinery is theoretically discussed in the present review, based on the idea that MCW, after proper pre-treatment is valorised as precursor of ACs and as co-substrate in AcoD for biomethane generation. This paper provides an overview on different scientific and technological aspects that can be involved in the development of the proposed biorefinery; the major topics considered in this work are the following ones: (i) the most suitable pre-treatments of MCW prior to AcoD; (ii) AcoD process with regard to the critical parameters resulting from MCW pre-treatments; (iii) production of ACs using MCW as precursor, with the aim to use these ACs in biogas conditioning (H2S removal) and upgrading (biomethane production), and (iv) an overview on biogas upgrading technologies.

Original languageEnglish
Article number109351
JournalJournal of Environmental Management
Volume249
DOIs
Publication statusPublished - 1 Nov 2019

Keywords

  • Activated carbon
  • Anaerobic co-Digestion
  • Bio-methane
  • Biorefinery
  • Maize cob waste
  • Pre-treatments

Fingerprint Dive into the research topics of 'Biomethane production through anaerobic co-digestion with Maize Cob Waste based on a biorefinery concept: A review'. Together they form a unique fingerprint.

Cite this