Comparison of solid-state to liquid anaerobic digestion of lignocellulosic feedstocks for biogas production

Dan Brown, Jian Shi, Yebo Li

Research output: Contribution to journalArticlepeer-review

285 Scopus citations


Lignocellulosic biomass feedstocks (switchgrass, corn stover, wheat straw, yard waste, leaves, waste paper, maple, and pine) were evaluated for methane production under liquid anaerobic digestion (L-AD) and solid-state anaerobic digestion (SS-AD). No significant difference in methane yield between L-AD and SS-AD, except for waste paper and pine, were found. However, the volumetric productivity was 2- to 7-fold greater in the SS-AD system compared with the L-AD system, except for paper. Methane yields from corn stover, wheat straw, and switchgrass were 2-5 times higher than those from yard waste, maple, and pine biomass. Waste paper had a methane yield of only 15. L/kg VS caused by souring during SS-AD due to organic overloading. Pine also had very low biogas yield of 17. L/kg VS, indicating the need for pretreatment prior to SS-AD. The findings of this study can guide future studies to improve the efficiency and stability of SS-AD of lignocellulosic biomass.

Original languageEnglish
Pages (from-to)379-386
Number of pages8
JournalBioresource Technology
StatePublished - Nov 2012

Bibliographical note

Funding Information:
This project was supported by Ohio Agricultural Research and Development Center (OARDC) SEEDS Program (2008-043) and the Ohio Third Frontier Program (10-059). The authors would like to thank Mrs. Mary Wicks (Department of Food, Agricultural and Biological Engineering, OSU) for reading through the manuscript and providing useful suggestions.


  • Biogas
  • Corn stover
  • Lignocellulosic biomass
  • Solid-state anaerobic digestion
  • Switchgrass

ASJC Scopus subject areas

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


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