Using the properties of soil to speed up the start-up process enhance process stability and improve the methane content and yield of solid-state anaerobic digestion of alkaline-pretreated poplar processing residues

摘要

BackgroundSolid-state anaerobic digestion (SS-AD) was initially adopted for the treatment of municipal solid waste. Recently, SS-AD has been increasingly applied to treat lignocellulosic biomass, such as agricultural and forestry residues. However, studies on the SS-AD process are few. In this study, the process performance and methane yield from SS-AD of alkaline-pretreated poplar processing residues (PPRs) were investigated using the properties of soil, such as buffering capacity and nutritional requirements.