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June 8, 2026Case Studies in Chemical and Environmental EngineeringOpen Access

Case Study of Biochar-Assisted Biogas Production and Corrosive Gas Reduction in Batch and Continuous Anaerobic Digestion

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Authors

CDCuong Manh DuongTLTeng‐Teeh Lim

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Overview

Randomized trial investigates biogas production outcomes in anaerobic digestion with biochar, suggesting effective biogas purification.

Key Points

  • This study aims to evaluate the effects of biochar on biogas production and corrosive gas emissions during anaerobic digestion.
  • Analyzed batch and semi-continuous anaerobic digestion systems with dairy manure
  • Conducted experiments with varying doses of biochar (0, 5, 7.5, 10 g/L)
  • Utilized first-order kinetic and modified Gompertz models for performance analysis.
  • Biogas production remained statistically unchanged across all treatments with biochar
  • Hydrogen sulfide removal reached 93.5% in batch tests and 93.2% during the first week of semi-continuous operation
  • First-order model exhibited higher predictive accuracy compared to the modified Gompertz equation.

Cite This Study

Duong et al. (2026) studied this question.

synapsesocial.com/papers/6a265becad53cfb9357c5589https://doi.org/10.1016/j.cscee.2026.101423
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  5. 5Improved Biogas Production Versus Increased Ash Content During Anaerobic Digestion with Digested Sludge-Derived Biochar Dosing2026