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

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dc.contributor.author Gil-Pulido, Beatriz
dc.contributor.author Tarpey, Emma
dc.contributor.author Almeida, Eduardo L.
dc.contributor.author Finnegan, William
dc.contributor.author Zhan, Xinmin
dc.contributor.author Dobson, Alan D. W.
dc.contributor.author O'Leary, Niall
dc.date.accessioned 2018-06-13T11:39:14Z
dc.date.available 2018-06-13T11:39:14Z
dc.date.issued 2018-06-05
dc.identifier.citation Gil-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.e00263 en
dc.identifier.issn 2215-017X
dc.identifier.uri http://hdl.handle.net/10468/6290
dc.identifier.doi 10.1016/j.btre.2018.e00263
dc.description.abstract Dairy 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.sponsorship Department of Agriculture, Food and the Marine (Dairy Water Project Ref.: 13‐F‐507) en
dc.format.mimetype application/pdf en
dc.language.iso en en
dc.publisher Elsevier 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) license en
dc.rights.uri https://creativecommons.org/licenses/by-nc-nd/4.0/ en
dc.subject Biotreatment en
dc.subject Dairy wastewater en
dc.subject Sludge biomass en
dc.subject Intermittently Aerated Sequencing Batch Reactor (IASBR) en
dc.subject Biological Nutrient Removal (BNR) en
dc.subject Comamonadaceae en
dc.title Evaluation of dairy processing wastewater biotreatment in an IASBR system: aeration rate impacts on performance and microbial ecology en
dc.type Article (peer-reviewed) en
dc.internal.authorcontactother Alan Dobson, Microbiology, University College Cork, Cork, Ireland. +353-21-490-3000 Email: a.dobson@ucc.ie en
dc.internal.availability Full text available en
dc.date.updated 2018-06-12T10:24:19Z
dc.description.version Accepted Version en
dc.internal.rssid 441283385
dc.contributor.funder Department of Agriculture, Food and the Marine en
dc.description.status Peer reviewed en
dc.identifier.journaltitle Biotechnology Reports en
dc.internal.copyrightchecked Yes en
dc.internal.licenseacceptance Yes en
dc.internal.IRISemailaddress A.Dobson@ucc.ie en
dc.internal.bibliocheck In press. Check for vol. / issue / page numbers. Amend citation as necessary. Open access. Upload published version and make it primary file. Change dc. description. version.


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© 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) license Except where otherwise noted, this item's license is described as © 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) license
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