Keywords: anaerobic digestion, biogas, MSW, municipal solid waste, waste treatment, review, organic, USA, United States, economies of scale
Anaerobic Digestion (AD) of Municipal Solid Waste (MSW) is used in several regions worldwide and systems span a range of design options including wet, dry, thermophilic, mesophilic, batch, continuous, single-stage, and multi-stage configurations. This paper reviews a number of commercial and emerging solid waste digestion systems discussing performance and costs. Systems yield 250?710 m³ of biogas per tonne of VS at rates of 1?6 m³/m³/d with methane content of 55?65%, depending on MSW composition. Economies of scale have been shown for system costs. Economic viability depends heavily on capital and operating costs, tipping fees and product/co-product revenues.