title: Activated sludge systems with biomass particle support structures.
abstract: A mathematical model was developed to simulate the operation of an activated sludge system with biomass support particles. Based on the results of this simulation study, it would appear that a system with biomass particle supports offers several advantages not offered by conventional systems. These include the ability to resist failure from large hydraulic surges; stable nitrification under transient inhibitory conditions resulting from temperature changes, hydraulic surges, and/or toxic chemicals; and the ability to establish stable operating conditions with respect to both carbon oxidation and nitrification at short hydraulic retention times and low sludge ages.
authors.affiliation: Department of Civil Engineering, Auburn University, Auburn, Alabama 36849.
authors.forename: J P
authors.initials: JP
authors.lastname: Nicol
authors.forename: L D
authors.initials: LD
authors.lastname: Benefield
authors.forename: E D
authors.initials: ED
authors.lastname: Wetzel
authors.forename: J A
authors.initials: JA
authors.lastname: Heidman