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Nitrogen removal from landfill leachate in constructed wetlands with reed and willow: Redox potential in the root zone

2012-04Journal article Open access
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dc.contributor.authorBialowiec, Andrzej
dc.contributor.authorAlbuquerque, Antonio
dc.contributor.authorDavies, Laura
dc.contributor.authorRanderson, Peter
dc.date.accessioned2014-06-30T16:09:12Z
dc.date.available2014-06-30T16:09:12Z
dc.date.issued2012-04
dc.description.abstractThis study investigated the effects of reed and willow on bioremediation of landfill leachate in comparison with an unplanted control by measuring redox potential levels in the rhizosphere of microcosm systems in a greenhouse. Plants had a significant influence on redox potential relative to the plant-less system. Redox potential in the reed rhizosphere was anoxic (mean -102 +/- 85 mV), but it was the least negative, being significantly higher than in the willow (mean -286 +/- 118 mV), which had the lowest Eh. Redox potential fluctuated significantly in the willow rhizosphere during daylight hours, with large decreases in the morning. Levels of NH4+ decreased significantly in the first day of the experiment and remained at similar low levels in all three variants for the next four weeks of the experiment. Following this removal of ammonia significant peaks in NO2- occurred in the control and reed tanks on the 1st day, and again on 14th day in the control tank up to 13 mg/dm(3). In the willow tank there was also one significant peak of NO2- in the first week, but only up to 0.5 mg/dm(3). Significant accumulation, within 21 days of NO3- in all variants was observed, but in tanks with reed and willow the concentration of NO3- remained significantly lower (<4 mg/dm(3)) than in the unplanted tank (similar to 35 mg/dm(3)). Final levels of total-nitrogen, nitrate and chemical oxygen demand were considerably lower in the reed and willow tank than in the unplanted tank.por
dc.description.sponsorshipThis experimental work was done with financial support of the fellowship of Dr Andrzej Bia1owiec held at Cardiff University, School of Biosciences, granted by Polish Ministry of Science and Higher Education No. 219/MOB/2008/0. Data analysis was carried out with financial support of EVAWET project e PTDC/AMB/73081/2006.
dc.identifier.doi10.1016/j.jenvman.2011.11.014
dc.identifier.issn1095-8630
dc.identifier.urihttp://hdl.handle.net/10400.6/1953
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherElsevierpor
dc.relationEVAWET - Evaluation of the hydrodynamic and environmental behaviour of constructed wetlands for wastewater treatment and reuse
dc.subjectLandfill leachatepor
dc.subjectWetlandspor
dc.subjectMacrófitaspor
dc.subjectSubsurface flowpor
dc.subjectRemoção de azotopor
dc.subjectNutrient removalpor
dc.subjectRedox potentialpor
dc.subjectNitrogen removalpor
dc.titleNitrogen removal from landfill leachate in constructed wetlands with reed and willow: Redox potential in the root zonepor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleEVAWET - Evaluation of the hydrodynamic and environmental behaviour of constructed wetlands for wastewater treatment and reuse
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FAMB%2F73081%2F2006/PT
oaire.citation.endPage27por
oaire.citation.startPage22por
oaire.citation.titleJOURNAL OF ENVIRONMENTAL MANAGEMENTpor
oaire.citation.volume97por
oaire.fundingStream5876-PPCDTI
person.familyNameBialowiec
person.familyNameCarvalho de Albuquerque
person.familyNameRanderson
person.givenNameAndrzej
person.givenNameAntonio João
person.givenNamePeter
person.identifier1284649
person.identifier.ciencia-idE912-87DD-BE6F
person.identifier.ciencia-id3319-F1FE-0DA8
person.identifier.orcid0000-0002-5871-2129
person.identifier.orcid0000-0001-7099-0685
person.identifier.orcid0000-0002-2744-3122
person.identifier.ridC-9293-2009
person.identifier.scopus-author-id8892509700
person.identifier.scopus-author-id6602217393
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication150cd45c-566e-40d1-9fb2-8089f66aceec
relation.isAuthorOfPublication9f533b0c-b538-4535-ade3-823df5592b88
relation.isAuthorOfPublicationf2430e36-b1fc-4505-8b21-13ff72e3c58f
relation.isAuthorOfPublication.latestForDiscovery9f533b0c-b538-4535-ade3-823df5592b88
relation.isProjectOfPublication084f409f-3f61-498c-b277-45d57991bef7
relation.isProjectOfPublication.latestForDiscovery084f409f-3f61-498c-b277-45d57991bef7

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