Biogas: A promising clean energy technology

Abstract This chapter reviews the current knowledge about production and characterization of biogas as a sustainable energy source. Technology for biogas production is well established and principally employed for the generation of sustainable electricity from different feedstock as well as for the environment-friendly disposal of organic waste. Biogas, the mixture of various gases led by methane, is produced from the digestion of organic matter present in different feedstock such as agricultural, urban, and industrial waste under anaerobic conditions by consortia of microorganisms. The anaerobic digestion process has been well known since ancient times. In our time, the biogas sector has swiftly grown as it has neither any geographical limitations nor required any dedicated technology for producing energy, so biogas plants have been installed as a progressive bioenergy industrial unit worldwide.