Distribution of trace metals (Cu, Pb, Ni, Zn) between particulate, colloidal and truly dissolved fractions in wastewater treatment

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dc.contributor.authorHargreaves, Andrew J.
dc.contributor.authorDotro, Gabriela
dc.contributor.authorCampo Moreno, Pablo
dc.date.accessioned2017-02-27T17:14:43Z
dc.date.available2017-02-27T17:14:43Z
dc.date.issued2017-02-07
dc.descriptionIssued with Attribution-Non-Commercial-No Derivatives 4.0 (CC BY-NC-ND 4.0)
dc.description.abstractThe distribution of Cu, Pb, Ni and Zn between particulate, colloidal and truly dissolved size fractions in wastewater from a trickling filter treatment plant was investigated. Samples of influent, primary effluent, humus effluent, final effluent and sludge holding tank returns were collected and separated into particulate (i.e. > 0.45 μm), colloidal (i.e. 1 kDa to 0.45 μm), and truly dissolved (i.e. < 1 kDa) fractions using membrane filters. In the influent, substantial proportions of Cu (60%), Pb (67%), and Zn (32%) were present in the particulate fraction which was removed in conjunction with suspended particles at the works in subsequent treatment stages. In final effluent, sizeable proportions of Cu (52%), Pb (32%), Ni (44%) and Zn (68%) were found within the colloidal size fraction. Calculated ratios of soluble metal to organic carbon suggest the metal to be adsorbed to or complexed with non-humic macromolecules typically found within the colloidal size range. These findings suggest that technologies capable of removing particles within the colloidal fraction have good potential to enhance metals removal from wastewater.en_UK
dc.identifier.citationAndrew J. Hargreaves, Peter Vale, Jonathan Whelan, Carlos Constantino, Gabriela Dotro, Pablo Campo, Elise Cartmell, Distribution of trace metals (Cu, Pb, Ni, Zn) between particulate, colloidal and truly dissolved fractions in wastewater treatment, Chemosphere, Volume 175, May 2017, pp239-246en_UK
dc.identifier.issn0045-6535
dc.identifier.urihttp://dx.doi.org/10.1016/j.chemosphere.2017.02.034
dc.identifier.urihttp://dspace.lib.cranfield.ac.uk/handle/1826/11505
dc.language.isoenen_UK
dc.publisherElsevieren_UK
dc.rightsAttribution-Non-Commercial-No Derivatives 4.0 (CC BY-NC-ND 4.0). You are free to: Share — copy and redistribute the material in any medium or format. The licensor cannot revoke these freedoms as long as you follow the license terms. Under the following terms: Attribution — You must give appropriate credit, provide a link to the license, and indicate if changes were made. You may do so in any reasonable manner, but not in any way that suggests the licensor endorses you or your use. Information: Non-Commercial — You may not use the material for commercial purposes. No Derivatives — If you remix, transform, or build upon the material, you may not distribute the modified material. No additional restrictions — You may not apply legal terms or technological measures that legally restrict others from doing anything the license permits.
dc.subjectWastewateren_UK
dc.subjectMembrane filtrationen_UK
dc.subjectColloidsen_UK
dc.subjectTrace metalsen_UK
dc.subjectParticle fractionsen_UK
dc.titleDistribution of trace metals (Cu, Pb, Ni, Zn) between particulate, colloidal and truly dissolved fractions in wastewater treatmenten_UK
dc.typeArticleen_UK

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