Biogas Scenarios

The demand of energy has been increased over the years due to increasing world population and expansion of global industries especially for food and feed. Most of the energy is consumed in transportation, industries & factories, power generation, and community sectors. Moreover, in order to fulfill our demand we are mostly dependent on energy, taken from fossil oil, gas and coal. In developing countries like India, more than 80% of the population lives in the rural areas where more than 90% of the energy being consumed comes from noncommercial sources, the major one being fuel wood. The increasing cost of conventional fuel in urban areas necessitates the exploration of other energy sources. Biogas technology provides an alternate source of energy in rural India as a substitute for fossil fuels. The generation of biogas from food waste/refuse or peelings, agricultural and animal waste produces energy. In Gujarat the fossil resources are limited, and they impose a high burden on the environment therefore looking at the ecological and economical perspectives, biogas is an important source of energy for the state. In addition to biogas generation, another important aspect of biogas compression is the scrubbing of the biogas in order to remove impurities that are generated during the digestion process such as carbon dioxide and hydrogen sulfide. Thus as effective biogas production is strategic the review highlights the various biogas scenarios that can facilitate the vision of a more cleaner environment and to effectively deal with the energy crises problems.