Phosphorus immobilization in Al-drinking water treatment sludge (Al-DWTS) and soil under laboratory conditions

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Show simple item record Li, W.C. Zhao, Y.Q. 2011-08-29T10:11:17Z 2011-08-29T10:11:17Z 2010 Taylor & Francis en 2010-10
dc.identifier.citation International Journal of Environmental Studies en
dc.identifier.issn 0020-7233 print
dc.identifier.issn 1029-0400 online
dc.description.abstract This study assessed the potential reuse of an aluminium coagulated drinking–water treatment sludge (Al–DWTS) as a main substrate in constructed wetland to replace soil for the treatment of P-enriched wastewater. The adsorption isotherm and kinetics of phosphorus (P) removal from high-P solution by Al–DWTS and a local soil from Bailieborough, Ireland, were studied and compared under laboratory conditions. Data of P adsorption were well fitted to the Langmuir and the Freundlich isotherms but the Freundlich isotherm had a higher correlation coefficient. The maximum P adsorption capacity of the Al–DWTS and the soil was 39.4 mg P mg–1 and 9.5 mg P mg–1, respectively, at conditions of pH of 4.0 and temperature of 23 °C. Kinetics studies show that adsorption in both cases followed pseudo-second-order kinetics. The fact that the Al–DWTS exhibited a significantly higher P adsorption capacity at high–P solution compared with the soil suggests that Al–DWTS can be a “novel–waste” bioadsorbent with promising application in wastewater treatment engineering, such as constructed wetland systems. en
dc.description.sponsorship Other funder en
dc.format.extent 381257 bytes
dc.format.mimetype application/pdf
dc.language.iso en en
dc.publisher Taylor & Francis 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 an electronic version of an article published in International Journal of Environmental Studies, 67 (5): 747-762, available online at: en
dc.subject Adsorption en
dc.subject Alum–drinking water treatment sludge en
dc.subject Phosphorus en
dc.subject Soil en
dc.subject Wastewater treatment en
dc.subject.lcsh Phosphorus--Absorption and adsorption en
dc.subject.lcsh Water treatment plant residuals en
dc.subject.lcsh Soils--Phosphorus content en
dc.title Phosphorus immobilization in Al-drinking water treatment sludge (Al-DWTS) and soil under laboratory conditions en
dc.type Journal Article en
dc.internal.availability Full text available en
dc.internal.webversions en
dc.status Peer reviewed en
dc.identifier.volume 67 en
dc.identifier.issue 5 en
dc.identifier.startpage 747 en
dc.identifier.endpage 762 en
dc.identifier.doi 10.1080/00207233.2010.514095
dc.neeo.contributor Li|W.C.|aut| en
dc.neeo.contributor Zhao|Y.Q.|aut| en
dc.description.othersponsorship Environmental Protection Agency en
dc.description.admin 12M embargo: release after 13/10/2011 - AV 25/8/2011 en

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