A study of dual polymer conditioning of aluminum-based drinking water treatment residual

DC FieldValueLanguage
dc.contributor.authorMa, W.-
dc.contributor.authorZhao, Y.Q.-
dc.contributor.authorKearney, P.-
dc.date.accessioned2011-09-23T13:59:35Z-
dc.date.available2011-09-23T13:59:35Z-
dc.date.copyrightTaylor & Francis Group, LLCen
dc.date.issued2007-01-
dc.identifier.citationJournal of Environmental Science and Health, Part A: Toxic/Hazardous Substances & Environmental Engineeringen
dc.identifier.issn1093-4529 (Print)-
dc.identifier.issn1532-4117 (Online)-
dc.identifier.urihttp://hdl.handle.net/10197/3171-
dc.description.abstractConditioning of an alum-based water treatment sludge by single and dual polymers was investigated in this study. Capillary suction time (CST), specific resistance to filtration (SRF) and settling rate of conditioned sludge were used to evaluate the sludge dewatering characteristics. Sludge dewaterability resulting from single and dual polymer conditioning were compared for the purpose of exploring the validity and effectiveness of dual polymer conditioning strategy. Unlike activated sludge derived from wastewater treatment, results from this study have demonstrated that conditioning of the alum sludge by the combined use of an cationic polymer (FO-4140) followed by an anionic polymer (LT-25) does not exhibit considerable advantage in further improvement of sludge dewaterability with comparison of single polymer conditioning. This study supports the view that for alum-based water treatment sludge, inter particle bridging seems to be the dominative mechanism and the charge neutralization plays a less important role in the conditioning process. In addition, an intrinsic relationship between CST and SRF was deducted and tested via the experimental data obtained from the study.en
dc.description.sponsorshipNot applicableen
dc.format.extent309621 bytes-
dc.format.mimetypeapplication/pdf-
dc.language.isoenen
dc.publisherTaylor & Francisen
dc.relation.requiresArchitecture, Landscape & Civil Engineering Research Collectionen
dc.relation.requiresCritical Infrastructure Group Research Collectionen
dc.relation.requiresUrban Institute Ireland Research Collectionen
dc.rightsThis is an electronic version of an article published in Journal of Environmental Science and Health, Part A 42(7): 961-968 available online at: http://www.tandfonline.com/doi/abs/10.1080/10934520701370261en
dc.subjectAlum sludgeen
dc.subjectCapillary suction time (CST)en
dc.subjectConditioningen
dc.subjectDewaterabilityen
dc.subjectPolymeren
dc.subjectSpecific resistance to filtration (SRF)en
dc.subject.lcshWater treatment plant residualsen
dc.subject.lcshSewage sludge--Conditioningen
dc.subject.lcshSewage--Purification--Filtrationen
dc.subject.lcshWater--Purification--Filtrationen
dc.subject.lcshPolymersen
dc.titleA study of dual polymer conditioning of aluminum-based drinking water treatment residualen
dc.typeJournal Articleen
dc.internal.availabilityFull text availableen
dc.internal.webversionshttp://dx.doi.org/10.1080/10934520701370261-
dc.statusPeer revieweden
dc.identifier.volume42en
dc.identifier.issue7en
dc.identifier.startpage961en
dc.identifier.endpage968en
dc.identifier.doi10.1080/10934520701370261-
dc.neeo.contributorMa|W.|aut|-
dc.neeo.contributorZhao|Y.Q.|aut|-
dc.neeo.contributorKearney|P.|aut|-
dc.description.adminSB.-06/09/2011en
item.grantfulltextopen-
item.fulltextWith Fulltext-
Appears in Collections:Centre for Water Resources Research Collection
Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection
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