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dc.contributor.authorEzzati, Golnaz
dc.contributor.authorHealy, Mark G.
dc.contributor.authorChristianson, Laura E.
dc.contributor.authorFenton, Owen
dc.contributor.authorFeyereisen, Gary
dc.contributor.authorThornton, Steven
dc.contributor.authorCallery, Oisín
dc.identifier.citationEzzati, Golnaz, Healy, Mark G., Christianson, Laura E., Fenton, Owen, Feyereisen, Gary, Thornton, Steven, & Callery, Oisín. (2020). Use of rapid small-scale column tests for simultaneous prediction of phosphorus and nitrogen retention in large-scale filters. Journal of Water Process Engineering, 37, 101473. doi:
dc.description.abstractRapid small-scale column tests (RSSCTs) have been previously used to predict the effluent concentration of a single nutrient in large filters with good accuracy. However, in drainage waters originating from heavy textured soils, where there is a need for in-ditch filters to retain both dissolved reactive phosphorus (DRP) and ammonium (NH4) simultaneously, the suitability of a RSSCT approach to model both parameters must be proved. In this study, a decision support tool was used to identify appropriate media that may be placed in filters for the removal of DRP and NH4. The selected media for this study were sand and zeolite. Both media were placed in acrylic tubes each with an internal diameter of 0.01 m and with lengths ranging from 0.1 to 0.4 m, and their performance for simultaneous removal of DRP and NH4 (1 mg DRP and NH4-N L-1) from water was evaluated. The data generated from the RSSCTs were used to model DRP and NH4 removals in 0.4 m-long laboratory columns of internal diameter 0.1m, which had the same media configuration as the small columns and were operated using the same influent concentrations. The developed model successfully predicted the effluent concentration of both the DRP and NH4-N from the large columns. This indicates using RSSCTs to model the performance of filters will produce substantial savings in operational, financial and labour costs, without affecting the accuracy of model predictions.en_IE
dc.description.sponsorshipThis project has received funding from the European Union’s Horizon 2020 research and innovation programme under the Marie Skłodowska-Curie grant agreement No 675120.
dc.relation.ispartofJournal Of Water Process Engineeringen
dc.titleUse of rapid small-scale column tests for simultaneous prediction of phosphorus and nitrogen retention in large-scale filtersen_IE
dc.contributor.funderHorizon 2020
dc.local.contactMark Healy, Room Eng-1038, Civil Engineering, Col Of Engineering & Informatics, Nui Galway. 5364 Email:
dc.local.copyrightcheckedOpen access - no embargo applied
dcterms.projectinfo:eu-repo/grantAgreement/EC/H2020::MSCA-ITN-ETN/675120/EU/Managing soil and groundwater impacts from agriculture for sustainable intensification/INSPIRATION

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