Characterization of aluminium-based water treatment residual for potential phosphorus removal in engineered wetlands

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dc.contributor.author Babatunde, A.O.
dc.contributor.author Zhao, Y.Q.
dc.contributor.author Burke, A.M.
dc.contributor.author Morris, M.A.
dc.contributor.author Hanrahan, J.P.
dc.date.accessioned 2011-08-30T13:31:36Z
dc.date.available 2011-08-30T13:31:36Z
dc.date.copyright 2009 Elsevier Ltd. en
dc.date.issued 2009-10
dc.identifier.citation Environmental Pollution en
dc.identifier.issn 0269-7491
dc.identifier.uri http://hdl.handle.net/10197/3128
dc.description.abstract Aluminium-based water treatment residual (Al-WTR) is the most widely generated residual from water treatment facilities worldwide. It is regarded as a by-product of no reuse potential and landfilled. This study assessed Al-WTR as a potential phosphate-removing substrate in engineered wetlands for wastewater treatment. Results indicate the specific surface area ranged from 28.0 m2 g-1 to 41.4 m2 g-1 and this increased with increasing particle size. X-ray Diffraction (XRD), Fourier transform infrared (FTIR) spectroscopy and energy-dispersive X-ray spectroscopy all indicate that the Al-WTR is mainly composed of amorphous aluminium which influences its phosphorus (P) adsorption capacity. The pH and electrical conductivity ranged from 5.9 - 6.0 and 0.104 dS m-1 - 0.140 dS m-1 respectively, and both showed that it should suitably support plant growth. Batch tests showed a maximum P adsorption capacity of 31.9 mg-P g-1 and significant P removal was achieved in column tests. Overall, results showed that Al-WTR can be a low-cost, easily and locally available substrate for enhanced P removal in engineered wetlands and it carries the benefits of reuse of a by-product that promotes sustainability. en
dc.description.sponsorship Other funder en
dc.format.extent 347633 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Elsevier en
dc.relation.requires Architecture, Landscape & Civil Engineering Research Collection en
dc.relation.requires Critical Infrastructure Group Research Collection en
dc.relation.requires Urban Institute Ireland Research Collection en
dc.rights This is the author’s version of a work that was accepted for publication in Environmental Pollution. Changes resulting from the publishing process, such as peer review, editing, corrections, structural formatting, and other quality control mechanisms may not be reflected in this document. Changes may have been made to this work since it was submitted for publication. A definitive version was subsequently published in Environmental Pollution Volume 157, Issue 10, October 2009, Pages 2830-2836 DOI: 10.1016/j.envpol.2009.04.016. en
dc.subject Adsorption capacity en
dc.subject Engineered wetlands en
dc.subject Water treatment residual en
dc.subject Phosphorus removal en
dc.subject Wastewater treatment en
dc.subject.lcsh Water treatment plant residuals en
dc.subject.lcsh Phosphorus--Absorption and adsorption en
dc.subject.lcsh Constructed wetlands en
dc.title Characterization of aluminium-based water treatment residual for potential phosphorus removal in engineered wetlands en
dc.type Journal Article en
dc.internal.availability Full text available en
dc.internal.webversions Publisher's version en
dc.internal.webversions http://dx.doi.org/10.1016/j.envpol.2009.04.016 en
dc.status Peer reviewed en
dc.identifier.volume 157 en
dc.identifier.issue 10 en
dc.identifier.startpage 2830 en
dc.identifier.endpage 2836 en
dc.identifier.doi 10.1016/j.envpol.2009.04.016
dc.neeo.contributor Babatunde|A.O.|aut| en
dc.neeo.contributor Zhao|Y.Q.|aut| en
dc.neeo.contributor Burke|A.M.|aut| en
dc.neeo.contributor Morris|M.A.|aut| en
dc.neeo.contributor Hanrahan|J.P.|aut| en
dc.description.othersponsorship Environmental Protection Agency en


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