6533b81ffe1ef96bd1277b97

RESEARCH PRODUCT

Performance of a MBR pilot plant treating high strength wastewater subject to salinity increase: Analysis of biomass activity and fouling behaviour

Daniele Di TrapaniGaetano Di BellaMichele TorregrossaGaspare Viviani

subject

Membrane foulingSalinityEnvironmental EngineeringFoulingSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleRenewable Energy Sustainability and the EnvironmentMembrane foulingEnvironmental engineeringfood and beveragesBiomassBioengineeringPilot ProjectsGeneral MedicineWastewater treatmentWastewaterSalinityMBRPilot plantWastewaterEnvironmental scienceSewage treatmentBiomassBiomass activityWaste Management and DisposalEffluent

description

Membrane bioreactors produce high quality effluents that could be suitable for reuse. However, when treating high strength wastewater subject to a salinity increase, a modification of biomass characteristics may occur. This circumstance is of importance, since it can have a significant impact in terms of biokinetic as well as fouling behaviour. The aim of the study was to evaluate the performance of a pilot plant MBR, in terms of biomass activity and membrane fouling, fed with high strength synthetic wastewater, when subject to a salinity increase. With normal salinity, the pilot plant showed high removal efficiencies and high biomass respiratory activity. On the other hand, the salinity increase significantly affected the removal efficiency as well as the SMP production. Furthermore, the salinity increase showed a strong effect on biomass activity, reducing in particular the respiration rates of autotrophic populations.

10.1016/j.biortech.2013.08.025http://hdl.handle.net/10447/91819