Abstract: A model has been developed to describe the gas production and soluble‐COD variations from the digestion of waste‐activated sludge in the anaerobic fluidized‐bed reactor. It indicates that a substantial rate increase can ...

Abstract: This study was undertaken to evaluate the laboratory performance of the anaerobic fluidized bed digesting secondary biological sludge at 35 °C with four hydraulic‐retention times (HRTs): 1, 2.5, 5, and 10 days. In addition, ...