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Related Experiment Videos

Studies into using manure in a biorefinery concept.

S Chen1, Z Wen, W Liao

  • 1Department of Biological Systems Engineering, Washington State University, Pullman, WA 99164, USA. chens@wsu.edu

Applied Biochemistry and Biotechnology
|June 3, 2005
PubMed
Summary
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Animal manure, rich in organic carbon, can be converted into biochemicals through a biorefinery’s sugar platform. However, this manure utilization strategy is currently not profitable.

Area of Science:

  • Biomass conversion
  • Biorefining
  • Biochemicals production

Background:

  • Animal manure is an underutilized biomass resource with significant organic carbon content.
  • Current manure disposal practices often result in the waste of this valuable resource.
  • Biorefineries offer a potential pathway for valorizing manure into useful products.

Purpose of the Study:

  • To explore the feasibility of utilizing animal manure via the sugar platform in a biorefinery.
  • To convert the carbon from manure fiber into biochemicals.
  • To assess the economic viability of manure-based biorefining.

Main Methods:

  • Characterization of manure fiber composition and particle size.
  • Cultivation of fungi (T. reesei and A. phoenicis) on manure for cellulase production.

Related Experiment Videos

  • Acid hydrolysis of hemicellulose and cellulose components of manure fiber.
  • Purification and separation of manure hydrolysate.
  • Hydrogenation of hydrolysate to produce polyols.

    • Main Results:

    • Fiber constitutes a major component of dry manure material (36-50%).
    • Manure provides essential nutrients for fungal cellulase production.
    • Hemicellulose is readily converted to sugar via acid hydrolysis; concentrated acid decrystallization is effective for cellulose hydrolysis.
    • Purification and separation are critical steps for subsequent chemical conversion.
    • The studied manure utilization strategy is currently not economically profitable.

    Conclusions:

    • Animal manure can be processed through a sugar platform in a biorefinery to produce biochemicals.
    • Key steps include fiber processing, hydrolysis, and purification.
    • Despite technical feasibility, the current economic profitability of this approach is limited.