Abstract

Anaerobic digestion is one of the best implanted technologies for sewage treatment. Its application to a biomass can result in the generation of energy in the form of biogas: methanogenesis for methane generation or hydrogen production, by adapting the conditions for dark fermentation. Since it was described by Lettinga in 1980, the upflow anaerobic sludge blanket has been widely used for municipal and industrial wastewater treatment and methane production, coping with their disadvantages over time. This chapter provides an overview of these technologies, as applied currently in wastewater treatment facilities.

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