Search results for "Respirometric batch test"

showing 2 items of 2 documents

Sequential batch membrane bio-reactor for wastewater treatment: The effect of increased salinity

2016

In this work, a sequential batch membrane bioreactor pilot plant is investigated to analyze the effect of a gradual increase in salinity on carbon and nutrient removal, membrane fouling and biomass kinetic parameters. The salinity was increased by 2 g NaCl L-1 per week up to 10 g NaCl L-1. The total COD removal efficiency was quite high (93%) throughout the experiment. A gradual biomass acclimation to the salinity level was observed during the experiment, highlighting the good recovery capabilities of the system. Nitrification was also influenced by the increase in salinity, with a slight decrease in nitrification efficiency (the lowest value was obtained at 10 g NaCl L-1 due to lower nitri…

Membrane foulingSalinityRespirometric batch testEnvironmental EngineeringBiofoulingOrganic carbon and nitrogen removal0208 environmental biotechnologyBiomassPilot ProjectsBioengineering02 engineering and technologyWastewater010501 environmental sciencesMembrane bioreactor01 natural sciencesBioreactorsWaste ManagementExtracellular polymeric substanceBioreactorBiomassWaste Management and Disposal0105 earth and related environmental sciencesBiological Oxygen Demand AnalysisFoulingSettore ICAR/03 - Ingegneria Sanitaria-AmbientaleRenewable Energy Sustainability and the EnvironmentChemistryMembrane foulingEnvironmental engineeringMembranes ArtificialGeneral MedicinePulp and paper industryNitrificationCarbon020801 environmental engineeringSalinityWastewaterExtracellular polymeric substances; Membrane fouling; Organic carbon and nitrogen removal; Respirometric batch tests; Salinity; Bioengineering; Environmental Engineering; Waste Management and DisposalNitrification
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Sequential Batch Membrane BioReactor treating saline wastewater

2015

A sequential batch membrane bioreactor treating high strength salinity wastewater has been investigated. The salt effects on carbon and nutrient removal, fouling behaviour as well as biomass kinetics have been analysed. Salinity was increased at step of 2 g NaCl L-1 per week. The total COD removal efficiency was high (93%) along the entire experimental campaign. However, the biological contribution on the COD removal efficiency was reduced with the increase of salinity. The lowest nitrification removal efficiency (63%) was obtained at 10 g NaCl L-1 salinity due to the lower nitrifier activity. Regarding membrane fouling, the irreversible cake deposition was the predominant fouling mechanism…

Settore ICAR/03 - Ingegneria Sanitaria-AmbientaleSalinity biological processes membrane fouling respirometric batch tests.
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