Opportunities for improvement of process technology for biomethanation processes

Abstract

Biomethanation process is a promising eco-friendly solution for the treatment of organic biomass, which leads to efficient bioenergy production. In this review, it is pointed out that more research and development is necessary to find the best operational conditions and dedicated reactors for treating the target substrates and to make them accessible to rural areas. The present review focuses on the various approaches which can be used to solve the constraints occurring during the gas production. A brief description of possible pretreatments for converting complex lignocellulosic waste to biogas, with the desired range of operational parameters for anaerobic digestion, is highlighted. In addition, suitable reactors for different substrates are reviewed.