{"status":"ok","message-type":"work","message-version":"1.0.0","message":{"indexed":{"date-parts":[[2026,2,13]],"date-time":"2026-02-13T16:48:23Z","timestamp":1771001303985,"version":"3.50.1"},"reference-count":27,"publisher":"Wiley","issue":"3","license":[{"start":{"date-parts":[[2019,1,28]],"date-time":"2019-01-28T00:00:00Z","timestamp":1548633600000},"content-version":"vor","delay-in-days":0,"URL":"http:\/\/onlinelibrary.wiley.com\/termsAndConditions#vor"}],"funder":[{"DOI":"10.13039\/501100000038","name":"Natural Sciences and Engineering Research Council of Canada","doi-asserted-by":"publisher","id":[{"id":"10.13039\/501100000038","id-type":"DOI","asserted-by":"publisher"}]}],"content-domain":{"domain":["onlinelibrary.wiley.com"],"crossmark-restriction":true},"short-container-title":["Water Environment Research"],"published-print":{"date-parts":[[2019,3]]},"abstract":"<jats:title>Abstract<\/jats:title><jats:sec><jats:label\/><jats:p>The impact of solids residence time (SRT) on the dynamics of phosphorus (P) removal by hydrous ferric oxide (HFO) floc was characterized through experimental and modeling studies. Three abiotic process conditions were considered in systems operated over a range of SRTs (~3 to 27\u00a0days): uptake in sequencing batch reactors (SBRs) under (a) constant and (b) dynamic P loading conditions, and (c) uptake in batch sorption tests with preformed HFO solids. P removal under all conditions was characterized by an initial period of fast removal followed by a period of slower removal until pseudo\u2010equilibrium was reached. The initial removal rate increased with increasing P concentrations and was attributed to a larger concentration gradient between soluble\u2010 and adsorbed\u2010phase concentrations. A kinetic model was developed and found to describe the dynamic behavior of P adsorption onto HFO floc under all conditions tested. A consistent mass transfer rate coefficient (<jats:italic>k<\/jats:italic>) was found to describe mass transfer over a range of SRTs for low initial P concentrations. At elevated SRTs (23\u201327\u00a0days) and elevated influent P concentrations, <jats:italic>k<\/jats:italic> values were found to deviate from those estimated at reduced SRTs. Differences in process mixing conditions were reflected in the estimated rate coefficients (<jats:italic>k<\/jats:italic>). Integration of the kinetic model with existing equilibrium models in wastewater process simulators will improve the ability to predict P uptake onto HFO floc under dynamic loading conditions in water resource recovery facilities. Models that consider the kinetics of P uptake will be particularly relevant for facilities that are required to achieve ultralow P concentrations.<\/jats:p><\/jats:sec><jats:sec><jats:title>Practitioner points<\/jats:title><jats:p>\n<jats:list list-type=\"bullet\">\n\n<jats:list-item><jats:p>This work provides a kinetic model that can be integrated with existing equilibrium models in wastewater process simulators to improve the ability to predict P uptake onto HFO floc under dynamic loading conditions.<\/jats:p><\/jats:list-item>\n\n<jats:list-item><jats:p>This research can be used to assist WRRFs to achieve ultralow effluent P requirements.<\/jats:p><\/jats:list-item>\n<\/jats:list>\n<\/jats:p><\/jats:sec>","DOI":"10.1002\/wer.1052","type":"journal-article","created":{"date-parts":[[2019,1,9]],"date-time":"2019-01-09T16:08:10Z","timestamp":1547050090000},"page":"250-258","update-policy":"https:\/\/doi.org\/10.1002\/crossmark_policy","source":"Crossref","is-referenced-by-count":7,"title":["Effect of solids residence time on dynamic responses in chemical P removal"],"prefix":"10.1002","volume":"91","author":[{"given":"Daniela","family":"Conidi","sequence":"first","affiliation":[{"name":"Department of Civil and Environmental Engineering University of Waterloo  Waterloo Ontario Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Wayne J.","family":"Parker","sequence":"additional","affiliation":[{"name":"Department of Civil and Environmental Engineering University of Waterloo  Waterloo Ontario Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]},{"given":"Scott","family":"Smith","sequence":"additional","affiliation":[{"name":"Faculty of Science Wilfrid Laurier University  Waterloo Ontario Canada"}],"role":[{"role":"author","vocabulary":"crossref"}]}],"member":"311","published-online":{"date-parts":[[2019,1,28]]},"reference":[{"key":"e_1_2_6_2_1","doi-asserted-by":"crossref","unstructured":"Benisch M. deBarbadillo C. Barnard J. &Neethling JB. 2013.Sustainable Operating Practices for Achieving Low Phosphorus Effluents. Conference Proceedings Nutrient Removal and Recovery 2013 WEF\/IWA.","DOI":"10.2175\/193864713813668114"},{"key":"e_1_2_6_3_1","doi-asserted-by":"publisher","DOI":"10.2136\/sssaj1980.03615995004400020013x"},{"key":"e_1_2_6_4_1","doi-asserted-by":"crossref","first-page":"109","DOI":"10.1007\/978-0-387-73563-4_4","volume-title":"Kinetics of water \u2013 Rock interaction","author":"Chorover J.","year":"2008"},{"key":"e_1_2_6_5_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.watres.2015.07.046"},{"key":"e_1_2_6_6_1","doi-asserted-by":"publisher","DOI":"10.2175\/106143016X14733681695366"},{"key":"e_1_2_6_7_1","unstructured":"Environment Canada 1990.Environmental Protection Series. Biological Test Method: Acute Lethality Test Using Daphnia ssp. Retrieved fromhttp:\/\/publications.gc.ca\/collections\/collection_2013\/ec\/En49-24-1-11-eng.pdf"},{"key":"e_1_2_6_8_1","unstructured":"Gilmore R.L. 2009.Laboratory Studies in Chemically Mediated Phosphorus Removal. Thesis submitted to the Department of Geography and Environmental Science Wilfrid Laurier University."},{"key":"e_1_2_6_9_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.watres.2014.12.053"},{"key":"e_1_2_6_10_1","doi-asserted-by":"publisher","DOI":"10.1006\/jcis.2000.7072"},{"key":"e_1_2_6_11_1","doi-asserted-by":"publisher","DOI":"10.1021\/es60165a013"},{"key":"e_1_2_6_12_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.seppur.2011.09.045"},{"key":"e_1_2_6_13_1","volume-title":"Wastewater Engineering: Treatment and Reuse","author":"Metcalf & Eddy","year":"2003"},{"key":"e_1_2_6_14_1","volume-title":"Fitting Models to Biological Data Using Linear and Nonlinear Regression: A practical guide to curve fitting","author":"Motulsky H.","year":"2004"},{"key":"e_1_2_6_15_1","doi-asserted-by":"publisher","DOI":"10.2175\/106143007X221003"},{"key":"e_1_2_6_16_1","doi-asserted-by":"publisher","DOI":"10.1002\/j.1554-7531.2008.tb00349.x"},{"key":"e_1_2_6_17_1","volume-title":"Kinetics of soil chemical processes","author":"Sparks D. L.","year":"1989"},{"key":"e_1_2_6_18_1","unstructured":"Standard Methods for the Examination of Water and Wastewater. 2005. (21st ed.).American Public Health Association American Water Works Association and Water Environment Federation Washington DC USA."},{"key":"e_1_2_6_19_1","doi-asserted-by":"publisher","DOI":"10.2175\/106143008X268498"},{"key":"e_1_2_6_20_1","doi-asserted-by":"crossref","unstructured":"Tak\u00e1cs I. Stricker A.\u2010E. Achleitner S. Barrie A. Rauch W. &Murthy S.2008.Do you know your sludge age?Conference Proceedings WEFTEC 2008 Water Environment Federation 3639\u20103655.","DOI":"10.2175\/193864708788733486"},{"key":"e_1_2_6_21_1","doi-asserted-by":"crossref","first-page":"65","DOI":"10.1007\/978-94-007-4204-8_4","volume-title":"Advances in Water Treatment and Pollution Prevention","author":"Teng T. T.","year":"2012"},{"key":"e_1_2_6_22_1","unstructured":"Water Environment Reuse Foundation (WERF) 2014.Phosphorus Fractionation and Removal in Wastewater Treatment: Implications for Minimizing Effluent Phosphorus. Water Environment Research Foundation report NUTR1R061."},{"key":"e_1_2_6_23_1","volume-title":"Separation methods for waste and environmental applications","author":"Watson J. S.","year":"1999"},{"key":"e_1_2_6_24_1","volume-title":"Process Dynamics in Environmental Systems","author":"Weber W. J. J.","year":"1996"},{"key":"e_1_2_6_25_1","doi-asserted-by":"publisher","DOI":"10.2134\/jeq2011.0250"},{"key":"e_1_2_6_26_1","doi-asserted-by":"publisher","DOI":"10.1021\/acs.est.5b00150"},{"key":"e_1_2_6_27_1","doi-asserted-by":"publisher","DOI":"10.2175\/106143012X13415215906933"},{"key":"e_1_2_6_28_1","doi-asserted-by":"publisher","DOI":"10.1016\/j.watres.2003.12.009"}],"container-title":["Water Environment Research"],"original-title":[],"language":"en","link":[{"URL":"https:\/\/api.wiley.com\/onlinelibrary\/tdm\/v1\/articles\/10.1002%2Fwer.1052","content-type":"application\/pdf","content-version":"vor","intended-application":"text-mining"},{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/pdf\/10.1002\/wer.1052","content-type":"unspecified","content-version":"vor","intended-application":"similarity-checking"}],"deposited":{"date-parts":[[2023,9,14]],"date-time":"2023-09-14T20:28:16Z","timestamp":1694723296000},"score":1,"resource":{"primary":{"URL":"https:\/\/onlinelibrary.wiley.com\/doi\/10.1002\/wer.1052"}},"subtitle":[],"short-title":[],"issued":{"date-parts":[[2019,1,28]]},"references-count":27,"journal-issue":{"issue":"3","published-print":{"date-parts":[[2019,3]]}},"alternative-id":["10.1002\/wer.1052"],"URL":"https:\/\/doi.org\/10.1002\/wer.1052","archive":["Portico"],"relation":{},"ISSN":["1061-4303","1554-7531"],"issn-type":[{"value":"1061-4303","type":"print"},{"value":"1554-7531","type":"electronic"}],"subject":[],"published":{"date-parts":[[2019,1,28]]},"assertion":[{"value":"2018-04-06","order":0,"name":"received","label":"Received","group":{"name":"publication_history","label":"Publication History"}},{"value":"2018-12-06","order":1,"name":"accepted","label":"Accepted","group":{"name":"publication_history","label":"Publication History"}},{"value":"2019-01-28","order":2,"name":"published","label":"Published","group":{"name":"publication_history","label":"Publication History"}}]}}