Biogas Upgrading Technologies in Municipal Solid Waste Treatment Plant for Energy Recovery Optimization

The current challenges in the fight against climate change and environmental protection require a paradigm shift in the current scenarios for the management of resources such as water, energy and by-products such as waste. These three elements find their meeting point in the production of biogas. The biogas obtained from the anaerobic digestion of the organic substance can be converted into biomethane through the use of upgrade technologies. The paper presents and discusses the state of the art of the main applied biogas upgrading technologies in municipal solid waste treatment with the aim of providing useful information for the choice and application of the best technology in order to maximize the production of biomethane and its energy transformation. The strengths and weaknesses of the principal biogas upgrading technologies are argued. Recommendations and future developments have been reported for the application of these technologies on an industrial scale. © 2022, The Author(s), under exclusive license to Springer Nature Switzerland AG.