Small scale biogas reactor

Biogas is identified as one of the alternative fuels to the non-renewable fuels such as petrol, diesels and kerosene. Biogas production at both large and small scale is common in countries like Germany, United States and China. However, the concern has been about the production of biogas in developing countries facing cold climate. Biogas production is very much dependent on temperature; therefore, in cold climates, it is nearly impossible to produce biogas without the application of external heat. The purpose of this thesis was to study the feasibility and viability of biogas production on small scale in cold temperatures. The thesis also focuses on the hazards that follow small scale biogas production. The protection measures for such hazards are also explored in the thesis. The thesis also discusses the available technology to detect the leakages that might occur in a smallscale anaerobic digester. The study concludes that biogas production at colder climates require the biogas reactors to be externally heated, which is not cost-friendly. However, communal digester is suitable and feasible if heating is done