Technical prospects and challenges of anaerobic co-digestion in Bangladesh: A review

Chayan Kumer Saha, Rajesh Nandi, Shammi Akter, Samira Hossain, Kazi Bayzid Kabir, Kawnish Kirtania, Md Tahmid Islam, Laura Guidugli, M. Toufiq Reza and Md Monjurul Alam

Renewable and Sustainable Energy Reviews, 2024, vol. 197, issue C

Abstract: Energy scarcity and environmental pollution from biogenic residues and wastes are major challenges in the 21st century, which can be converted to useful renewable energy and reduce environmental threats. In Bangladesh, a tremendous amount of biogenic residues is generated which remains largely underutilized. Mono-digestion, which is a common practice in Bangladesh for biogenic residue processing, resulted in low biogas yield. However, Bangladesh has a vast source of biogenic residues which can be utilized through anaerobic co-digestion to increase biogas production. In this paper, a desk study and comprehensive review has been conducted in finding potentiality of biogenic residues in biogas production from available biogenic residues in Bangladesh. Research studies on co-digestion of biogenic residues were reviewed critically, and their practices and benefits on energy production and impact on the environment were stipulated in this study. The study shows that co-digestion of biogenic residues in appropriate ratio increases the biogas production, improves digested quality and reduces GHG emissions.

Keywords: Renewable energy; Biomass; Anaerobic co-digestion; Greenhouse gas; Digestate (search for similar items in EconPapers)
Date: 2024
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DOI: 10.1016/j.rser.2024.114412

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