title: Is hydraulic retention time an essential parameter for MBR performance?
abstract: The effect of hydraulic retention time (HRT) on membrane bioreactors (MBR) operation is discussed. A brief literature review on this topic indicates that biased conclusions can be drawn if data is obtained under non steady-state conditions. Another relevant aspect regarding steady-state operation includes activated sludge adaptation to bioreactor running conditions. In addition, wastewater components also have influence on steady-state achievement and MBR performance.
authors.affiliation: Chemical Engineering Program, COPPE/Federal University of Rio de Janeiro, P.O. Box 68502, CEP 21941-972, Rio de Janeiro, Brazil.
authors.forename: Aline F
authors.initials: AF
authors.lastname: Viero
authors.forename: Geraldo L
authors.initials: GL
authors.lastname: Sant'anna
mesh_terms: D018533:Biomass; D019149:Bioreactors; D012196:Review Literature as Topic; D012722:Sewage / Q000737:chemistry*; D014865:Waste Disposal, Fluid / Q000379:methods*; D018508:Water Purification / Q000379:methods*
chemical_list: D012722:Sewage