Evaluation of dairy processing wastewater biotreatment in an IASBR system: aeration rate impacts on performance and microbial ecology

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dc.contributor.authorGil-Pulido, Beatriz
dc.contributor.authorTarpey, Emma
dc.contributor.authorAlmeida, Eduardo L.
dc.contributor.authorFinnegan, William
dc.contributor.authorZhan, Xinmin
dc.contributor.authorDobson, Alan D. W.
dc.contributor.authorO'Leary, Niall
dc.contributor.funderDepartment of Agriculture, Food and the Marineen
dc.date.accessioned2018-06-13T11:39:14Z
dc.date.available2018-06-13T11:39:14Z
dc.date.issued2018-06-05
dc.date.updated2018-06-12T10:24:19Z
dc.description.abstractDairy processing generates large volumes of wastewater that require extensive nutrient remediation prior to discharge. Significant commercial opportunities exist therefore for cost-effective biotechnologies capable of achieving this requirement. In this study the authors evaluated the use of intermittently aerated sequencing batch reactors, (IASBRs), as a single-tank biotreatment system for co-removal of COD, nitrogen and phosphorus from synthetic dairy processing wastewater. Variation of the IASBR aeration rates, (0.8, 0.6 and 0.4 litres/min), had significant impacts on the respective nutrient removal efficiencies and underlying microbial diversity profiles. Aeration at 0.6 litres/min was most effective and resulted in >90% co-removal of orthophosphate and ammonium. 16S rRNA based pyrosequencing of biomass DNA samples revealed the family Comamonadaceae was notably enriched (>80% relative abundance) under these conditions. In silico predictive metabolic modelling also identified Comamonadaceae as the major contributor of several known genes for nitrogen and phosphorus assimilation (nirK, nosZ, norB, ppK, ppX and phbC).en
dc.description.sponsorshipDepartment of Agriculture, Food and the Marine (Dairy Water Project Ref.: 13‐F‐507)en
dc.description.statusPeer revieweden
dc.description.versionAccepted Versionen
dc.format.mimetypeapplication/pdfen
dc.identifier.citationGil-Pulido, B., Tarpey, E., Almeida, E. L., Finnegan, W., Zhan, X., Dobson, A. D. W. and O'Leary, N. (2018) 'Evaluation of dairy processing wastewater biotreatment in an IASBR system: aeration rate impacts on performance and microbial ecology', Biotechnology Reports. doi:10.1016/j.btre.2018.e00263en
dc.identifier.doi10.1016/j.btre.2018.e00263
dc.identifier.issn2215-017X
dc.identifier.journaltitleBiotechnology Reportsen
dc.identifier.urihttps://hdl.handle.net/10468/6290
dc.language.isoenen
dc.publisherElsevier B.V.en
dc.rights© 2018, the Authors. Published by Elsevier B.V. Open Access. This article is licensed under the Creative Commons Attribution-NonCommercial-NoDerivatives 4.0 International (CC BY-NC-ND 4.0) licenseen
dc.rights.urihttps://creativecommons.org/licenses/by-nc-nd/4.0/en
dc.subjectBiotreatmenten
dc.subjectDairy wastewateren
dc.subjectSludge biomassen
dc.subjectIntermittently Aerated Sequencing Batch Reactor (IASBR)en
dc.subjectBiological Nutrient Removal (BNR)en
dc.subjectComamonadaceaeen
dc.titleEvaluation of dairy processing wastewater biotreatment in an IASBR system: aeration rate impacts on performance and microbial ecologyen
dc.typeArticle (peer-reviewed)en
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