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Modeling phosphate transport and removal in a compact bed filled with a mineral-based sorbent for domestic wastewater treatment
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.ORCID-id: 0000-0003-0520-796X
Luleå tekniska universitet, Institutionen för teknikvetenskap och matematik, Strömningslära och experimentell mekanik.
Department of Land and Water Resources Engineering, Royal Institute of Technology.
Luleå tekniska universitet, Institutionen för samhällsbyggnad och naturresurser, Arkitektur och vatten.ORCID-id: 0000-0001-9541-3542
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2013 (engelsk)Inngår i: Journal of Contaminant Hydrology, ISSN 0169-7722, E-ISSN 1873-6009, Vol. 154, s. 70-77Artikkel i tidsskrift (Fagfellevurdert) Published
Abstract [en]

Phosphorus filter units containing mineral-based sorbents with a high phosphate (PO4) binding capacity have been shown to be appropriate for removing PO4 in the treatment of domestic wastewater in on-site facilities. However, better understanding of their PO4 removal mechanisms, and reactions that could lead to the formation of PO4 compounds, is required to evaluate the potential utility of candidate sorbents. Models based on data obtained from laboratory-scale experiments with columns of selected materials can be valuable for acquiring such understanding. Thus, in this study the transport and removal of PO4 in experiments with a laboratory-scale column filled with a commercial silicate-based sorbent were modeled, using the hydro-geochemical transport code PHREEQC. The resulting models, that incorporated the dissolution of calcite, kinetic constrains for the dissolution of calcium oxide (CaO) and wollastonite (CaSiO3), and the precipitation of amorphous tricalcium phosphate, Ca3(PO4)2, successfully simulated the removal of PO4 observed in the experiments.

sted, utgiver, år, opplag, sider
2013. Vol. 154, s. 70-77
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Forskningsprogram
VA-teknik; Strömningslära
Identifikatorer
URN: urn:nbn:se:ltu:diva-12264DOI: 10.1016/j.jconhyd.2013.08.007ISI: 000326665200007PubMedID: 24090737Scopus ID: 2-s2.0-84885166607Lokal ID: b5ee495a-9850-4cfa-8414-62680d5094f6OAI: oai:DiVA.org:ltu-12264DiVA, id: diva2:985214
Merknad
Validerad; 2013; 20130902 (andbra)Tilgjengelig fra: 2016-09-29 Laget: 2016-09-29 Sist oppdatert: 2018-07-10bibliografisk kontrollert

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Herrmann, IngaJourak, AmirHedström, AnnelieLundström, T. StaffanViklander, Maria

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