Fenton and Fenton-like AOPs for alum sludge conditioning : effectiveness comparison with different Fe2+ and Fe3+ salts

DC FieldValueLanguage
dc.contributor.authorTony, Maha A.-
dc.contributor.authorZhao, Y.Q.-
dc.contributor.authorEl-Sherbiney, M.F.-
dc.date.accessioned2011-08-29T09:20:36Z-
dc.date.available2011-08-29T09:20:36Z-
dc.date.copyrightTaylor & Francis Group, LLCen
dc.date.issued2010-11-
dc.identifier.citationChemical Engineering Communicationsen
dc.identifier.issn0098-6445 (Print)-
dc.identifier.issn1563-5201 (Online)-
dc.identifier.urihttp://hdl.handle.net/10197/3119-
dc.description.abstractCurrently, organic polymers are adopted in alum sludge (aluminium-coagulated drinking water treatment sludge) conditioning. However, there are important concerns regarding the use of these polymers because of the unknown and long-term effects of the potential release of excess polymer to the surrounding environment when the sludge is landfilled. Therefore, as an initiative action, this study aimed at investigating alternative chemical conditioning methods and focused mainly on exploiting Fenton (Fe2+/H2O2) and Fenton-like (Fe3+/H2O2) reagents as the conditioner. Experiments have been conducted to test the effectiveness of Fenton’s reagent (containing the ferrous salts of chloride, sulphate or oxalate), Fenton-like reagent (containing ferric salts of chloride and sulphate) and the coagulation method using FeCl3 for an alum sludge conditioning at a constant hydrogen peroxide and iron salt concentrations of 125 and 20 mg/g DS (dry solids), respectively. The effectiveness on dewaterability of the alum sludge demonstrated that the maximum reduction (%) of SRF (specific resistance to filtration) and CST (capillary suction time) of 74 % and 47 %, respectively, can be obtained when Fenton’s reagent was adopted for sludge conditioning. Such reduction of 64% for SRF and 38% for CST can be achieved when Fenton-like reagents were applied.en
dc.description.sponsorshipNot applicableen
dc.format.extent299327 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 Chemical Engineering Communications, 198 (3): 442-452, available online at: http://dx.doi.org/10.1080/00986445.2010.520235.en
dc.subjectAlum sludgeen
dc.subjectConditioningen
dc.subjectFenton’s reagenten
dc.subjectFenton-like processen
dc.subjectCapillary suction time (CST)en
dc.subjectSpecific resistance to filtration (SRF)en
dc.subject.lcshWater treatment plant residualsen
dc.subject.lcshFilters and filtration--Testingen
dc.subject.lcshFenton's reagenten
dc.titleFenton and Fenton-like AOPs for alum sludge conditioning : effectiveness comparison with different Fe2+ and Fe3+ saltsen
dc.typeJournal Articleen
dc.internal.availabilityFull text availableen
dc.internal.webversionshttp://dx.doi.org/10.1080/00986445.2010.520235-
dc.statusPeer revieweden
dc.identifier.volume198en
dc.identifier.issue3en
dc.identifier.startpage442en
dc.identifier.endpage452en
dc.identifier.doi10.1080/00986445.2010.520235-
dc.neeo.contributorTony|Maha A.|aut|-
dc.neeo.contributorZhao|Y.Q.|aut|-
dc.neeo.contributorEl-Sherbiney|M.F.|aut|-
dc.description.admin12M embargo@ release after 25/11/2011 - AV 25/8/2011en
item.grantfulltextopen-
item.fulltextWith Fulltext-
Appears in Collections:Urban Institute Ireland Research Collection
Critical Infrastructure Group Research Collection
Civil Engineering Research Collection
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