Small biogas plants in rural Nepal
The Nepalese region Terai Arc includes several areas with animal and plant species worthy of protection. In order to protect the local ecosystems, 7,500 small biogas plants are being constructed and installed for farmers and their families. The installed, cupola-shaped plants were developed in Nepal and deliver sufficient cooking energy for a family with at least two cows or buffaloes. The cattle manure is mixed with water and added to the plant. The anaerobic decomposition of the organic substance leads to the development of biogas, which is routed via pipe connections into the kitchen and used for cooking.
The project in the southwest of Nepal offers several advantages to the local population: The time-consuming search for firewood is no longer necessary, hundreds of jobs are created during the planning, construction and maintenance of the plant, and the latrines that are connected to the biogas plants are improved. Moreover, in contrast to firewood, the use of biogas for cooking causes no health-damaging smoke. The digestate from the biogas plants can be used as a biological fertilizer which improves the agricultural crops.






