Pilot field-scale demonstration of a novel alum sludge-based constructed wetland system for enhanced wastewater treatment

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dc.contributor.author Zhao, Y.Q.
dc.contributor.author Babatunde, A.O.
dc.contributor.author Hu, Y.S.
dc.contributor.author Kumar, J.L.G.
dc.contributor.author Zhao, X.H.
dc.date.accessioned 2011-08-29T09:16:35Z
dc.date.available 2011-08-29T09:16:35Z
dc.date.copyright 2010 Elsevier Ltd. en
dc.date.issued 2011-01
dc.identifier.citation Process Biochemistry en
dc.identifier.issn 1359-5113
dc.identifier.uri http://hdl.handle.net/10197/3118
dc.description.abstract In this study, beneficial reuse of the alum-contained drinking water treatment sludge is extended into developing a novel constructed wetland system (CWs) using the alum sludge as main substrate. The study reports on the first pilot field-scale alum sludge-based CWs operated in the tidal flow mode with enhanced capacity for phosphorus and organic matter removal from animal farm wastewater. The concept of the development is presented and this is followed by the performance analysis of the first CWs of its kind. The CWs consists of four identical compartments in series operated using a tidal flow strategy with a hydraulic loading rate of 0.29 m3/m2.d. First year analysis of the system’s performance shows that it is a unique and promising low-cost wastewater treatment system. The mean monthly removal efficiencies obtained was determined to range from 57%-84%, 36%-84%, 11%-78%, 49%-93%, 75%-94%, 73%-97% and 46%-83% for BOD5, COD, TN, NH4-N, TP, P (inorganic phosphorus) and SS. The system showed a distinct phosphorus removal and also, the system was effective in reducing levels of organics and ammonium-nitrogen. More importantly, the system showcases a novel reuse alternative for the alum sludge as opposed to its landfilling, demonstrating a win-win technique with a great potential for larger-scale application. en
dc.description.sponsorship Other funder en
dc.format.extent 546112 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 Process Biochemistry. 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 Process Biochemistry, 46 (1): 278-283 DOI: 10.1016/j.procbio.2010.08.023. en
dc.subject Alum sludge en
dc.subject Constructed wetlands en
dc.subject Phosphorus en
dc.subject Tidal flow en
dc.subject Wastewater treatment en
dc.subject.lcsh Constructed wetlands en
dc.subject.lcsh Water treatment plant residuals en
dc.subject.lcsh Phosphorus en
dc.subject.lcsh Water--Purification en
dc.title Pilot field-scale demonstration of a novel alum sludge-based constructed wetland system for enhanced wastewater treatment 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.procbio.2010.08.023 en
dc.status Peer reviewed en
dc.identifier.volume 46 en
dc.identifier.issue 1 en
dc.identifier.startpage 278 en
dc.identifier.endpage 283 en
dc.identifier.doi 10.1016/j.procbio.2010.08.023
dc.neeo.contributor Zhao|Y.Q.|aut| en
dc.neeo.contributor Babatunde|A.O.|aut| en
dc.neeo.contributor Hu|Y.S.|aut| en
dc.neeo.contributor Kumar|J.L.G.|aut| en
dc.neeo.contributor Zhao|X.H.|aut| en
dc.description.othersponsorship Department of Agriculture, Fisheries and Food en


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