Feasibility analysis of implementing anaerobic digestion as a potential energy source in Bangladesh

Biogas technology is one of the prevalent alternative ways to mitigate energy crisis in Bangladesh. This approach of renewable energy is becoming popular to the rural population due to its economic viability and environmental attractiveness. The aim of this review paper is to illustrate the current status of domestic biogas plants in Bangladesh. The study also assesses the total biomass potential including livestock manure and agricultural residue available for biogas generation. The assessment shows that the total estimated amount of residues is 106.27 million tons comprises 42.49 million tons from agricultural residue, and 63.78 million tons from livestock manure and municipal solid waste (MSW) which is equivalent to 5.045 billion m3 of biogas. The economic analysis of 2.0 m3, 2.6 m3, and 3.2 m3 family size biogas plants are found to be a viable option in substitution of biomass and other commercial energy. The reliable supply of low-cost feed materials for biogas production has found to be an important factor to make the plant more feasible.