Water Science & Technology · 1996 · 20 citations · 0 references
Sewage Sludge TreatmentEngineeringBiological Waste TreatmentMunicipal WastewaterWastewater TreatmentBiodegradationChemical EngineeringBioremediationBiochemical EngineeringWater TreatmentEnvironmental MicrobiologyMembrane ProcessMembrane TechnologySynthetic WastewaterHigh Molecular-weight CompoundsWastewater ManagementEnvironmental EngineeringActivated Sludge ProcessMembrane BioreactorMicrobiologyMicrobiological Degradation
The activated sludge process has been used extensively to treat municipal wastewater. The membrane bioreactor (MBR) process is a modification of the conventional activated sludge process where the clarifier is replaced with a membrane system for separation between the mixed liquor and the effluent. This paper presents the biological and physical performance data of a pilot-scale membrane bioreactor system, fed with a synthetic wastewater. At steady state, particularly high effluent quality was obtained and maintained for an extended period of time. Heterotrophic plate counting showed that the membrane retains heterotrophic microorganisms. Bacteriophage MS-2 was used to determine the retention of viruses. The membrane proved to retain the MS-2 virus.