A comparison of a blower and a Venturi aeration system in a submerged membrane bioreactor

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dc.contributor.authorKayaalp, Necati
dc.contributor.authorOzturkmen, Gokmen
dc.contributor.authorGul, Ertugrul
dc.contributor.authorGunay, Elif
dc.date.accessioned2024-04-24T17:24:49Z
dc.date.available2024-04-24T17:24:49Z
dc.date.issued2017
dc.departmentDicle Üniversitesien_US
dc.descriptionEDS Conference on Desalination for the Environment - Clean Water and Energy -- MAY 22-26, 2016 -- Rome, ITALYen_US
dc.description.abstractA novel aeration method for submerged membrane bioreactors (MBR) was developed in this study. This method uses a Venturi injector to supply the air to the MBR. Short term experiments were performed to determine the technical applicability of integrating a venturi device into a submerged MBR. A flat-sheet, 0.1-mu m polyvinylidene fluoride membrane was used to operate the MBR. Real wastewater taken from Diyarbakir Municipal Wastewater Treatment Plant was used as feed. Membrane fouling was evaluated under three different fluxes (18, 32, and 50 L/m(2) . h) and 3 L/min aeration rate for both blower-and venturi-aerated MBR systems. Transmembrane pressure (TMP), chemical oxygen demand (COD), mixed liquor suspended solids, mixed liquor volatile suspended solids, pH, dissolved oxygen, and temperature were measured in the experimental setup. The COD removal rate was between 75-92% for blower system and 85-87% for venturi system. Effluent NH4-N concentration was between 0.0-14.7 mg/L for blower system and 0.0-0.7 for venturi system. While the effluent NO3-N was between 3.1-27.4 mg/L for blower system, it was 33.3-37.8 mg/L for venturi system. At 3 L/min aeration rate, the dissolved oxygen concentration in MBR was between 0.42-3.43 mg/L for blower-aerated system and between 6.43-7.07 mg/L for venturi-aerated system. TMP development at different fluxes in blower and venturi systems showed that integration of a venturi device with a submerged MBR improved filtration capacity significantly. The rate of TMP increase in blower-aerated system was higher than that of venturi-aerated system at the same aeration rate of 3 L/min for both systems. At the highest filtration flux tested (50 L/m(2) . h), venturi-aerated system operated three times longer than the blower system.en_US
dc.description.sponsorshipEDSen_US
dc.description.sponsorshipScientific and Technological Research Council of Turkey (TUBITAK) [114Y021]; Scientific Research Projects Department (DUBAP) of Dicle University [114Y021]en_US
dc.description.sponsorshipThis study was funded by the Scientific and Technological Research Council of Turkey (TUBITAK) with Project No: 114Y021 and the Scientific Research Projects Department (DUBAP) of Dicle University with the same project number.en_US
dc.identifier.doi10.5004/dwt.2017.20243
dc.identifier.endpage115en_US
dc.identifier.issn1944-3994
dc.identifier.issn1944-3986
dc.identifier.scopus2-s2.0-85020293115
dc.identifier.scopusqualityQ3
dc.identifier.startpage109en_US
dc.identifier.urihttps://doi.org/10.5004/dwt.2017.20243
dc.identifier.urihttps://hdl.handle.net/11468/19844
dc.identifier.volume69en_US
dc.identifier.wosWOS:000403570300014
dc.identifier.wosqualityQ3
dc.indekslendigikaynakWeb of Science
dc.indekslendigikaynakScopus
dc.language.isoenen_US
dc.publisherDesalination Publen_US
dc.relation.ispartofDesalination and Water Treatment
dc.relation.publicationcategoryKonferans Öğesi - Uluslararası - Kurum Öğretim Elemanıen_US
dc.rightsinfo:eu-repo/semantics/closedAccessen_US
dc.subjectMembrane Bioreactor (Mbr)en_US
dc.subjectAerationen_US
dc.subjectVenturi Deviceen_US
dc.subjectMembrane Foulingen_US
dc.subjectWastewater Treatmenten_US
dc.titleA comparison of a blower and a Venturi aeration system in a submerged membrane bioreactoren_US
dc.titleA comparison of a blower and a Venturi aeration system in a submerged membrane bioreactor
dc.typeConference Objecten_US

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