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April 10, 2026SustainabilityOpen Access

Sustainable Valorization of Cattle Manure: Efficacy and Trade-Offs in Post-Digestion Strategies

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Authors

MSMostafa ShahabiBHBasem HarounHNHossein Naeimi

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Overview

Evaluates post-treatment strategies to enhance methane recovery in cattle manure, indicating their potential for sustainable energy systems.

Key Points

  • The aim is to assess the efficacy of thermal and thermo-alkaline treatments on post-digestion cattle manure to enhance methane recovery.
  • Operated a 10 L mesophilic CSTR for 311 days to produce lignin-rich digestate.
  • Applied a range of post-treatment conditions with variations in temperature, pH, and contact time.
  • Conducted biomethane potential assays and lignocellulosic fractionation to evaluate changes in methane production and biodegradability.
  • Employed Gompertz modeling to analyze methane production kinetics.
  • Thermal treatment achieved 84 mg SCOD g−1 PCOD solubilization and a 26 mL CH4 g−1 COD increase.
  • Thermo-alkaline treatment significantly enhanced results, yielding 493 mg SCOD g−1 PCOD solubilization and a 60.2 mL CH4 g−1 COD increase.
  • The most severe thermo-alkaline conditions resulted in 66% removal of structural carbohydrates and a 16% increase in biodegradability.
  • A strong linear correlation (R2 = 0.90) showed that treatment severity predicts solubilization outcomes.

Cite This Study

Shahabi et al. (2026) studied this question.

synapsesocial.com/papers/69d893406c1944d70ce043b1https://doi.org/10.3390/su18073580
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