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The influence of evapotranspiration on wastewater constructed wetland treatment efficiency

2013-06-15Book part Open access
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dc.contributor.authorAlbuquerque, António
dc.contributor.authorBialowiec, Andrzej
dc.contributor.authorRanderson, Peter
dc.date.accessioned2022-07-14T09:29:49Z
dc.date.available2022-07-14T09:29:49Z
dc.date.issued2013-06-15
dc.description.abstractOwing to low investment and maintenance costs, there has been a growing interest in applying plants in wastewater treatment. Plants commonly used in constructed wetlands (CW) include: cattail, reed, rush, yellow flag, manna grass, and willow. In a CW, application of plants brings several benefits: creating aerobic conditions in the otherwise anaerobic rhizosphere, providing carbon compounds into the rhizosphere, uptaking pollutants (e.g. nutrients and heavy metals) from treated wastewater; improving the hydraulic conditions of wastewater flow through CW beds, and also increasing the available surface for growth of microbial biofilms. Hydrophytes also have great transpiration potential. Numerous studies have shown the importance of evapotranspiration during hot periods in natural wetlands and also in constructed wetlands. Evapotranspiration affects treatment efficiency in CWs: it increases the concentration of dissolved compounds due to decreasing water volume. Therefore, having regard to the mode of operating (VSSW or HSSW), temperature and influent characteristics (e.g. HLR and wastewater influent loads), the removal efficiency calculated as a comparison between initial and final concentration is lower, than expected from mass balance. Given results from systems in colder (Poland) and warmer (Portugal) climate conditions shows that the difference in methodology of removal efficiency calculation is significant, even if the CWs are operating in different modes. Usually, in the literature removal efficiency is expressed on the basis of concentrations, mostly due to lack of flow rate monitoring. Unfortunately, this may seriously underestimate treatment performance of CWs. This study suggests the need for routine monitoring of flow rate, or evaluation of potential evapotranspiration, to estimate removal efficiency of a CW based on mass balance.pt_PT
dc.description.versioninfo:eu-repo/semantics/publishedVersionpt_PT
dc.identifier.citationALBUQUERQUE A., BIALOWIEC A. e RANDERSON P. (2013). The influence of evapotranspiration on wastewater constructed wetland treatment efficiency. In Advances in Environmental Research, Daniels J. (Ed.), Nova Science Publishers, Inc., Nova York, EUA, Cap. 4, V. 30, 163-200 (ISBN: 978 1 62948 204 0, ISSN: 2158 5717).pt_PT
dc.identifier.isbn978-1-62948-204-0
dc.identifier.issn21585717
dc.identifier.urihttp://hdl.handle.net/10400.6/12289
dc.language.isoengpt_PT
dc.peerreviewedyespt_PT
dc.publisherNova Science Publisherspt_PT
dc.rights.urihttp://creativecommons.org/licenses/by-nc/4.0/pt_PT
dc.subjectWastewater treatmentpt_PT
dc.subjectWater reusept_PT
dc.subjectConstructed wetlandpt_PT
dc.subjectEvapotranspirationpt_PT
dc.subjectWater balancept_PT
dc.titleThe influence of evapotranspiration on wastewater constructed wetland treatment efficiencypt_PT
dc.typebook part
dspace.entity.typePublication
oaire.citation.conferencePlaceNova York, EUA.pt_PT
oaire.citation.endPage200pt_PT
oaire.citation.issue4pt_PT
oaire.citation.startPage163pt_PT
oaire.citation.titleAdvances in Environmental Research, Daniels J. (Ed.).pt_PT
oaire.citation.volume30pt_PT
person.familyNameCarvalho de Albuquerque
person.familyNameBialowiec
person.familyNameRanderson
person.givenNameAntonio João
person.givenNameAndrzej
person.givenNamePeter
person.identifier1284649
person.identifier.ciencia-id3319-F1FE-0DA8
person.identifier.ciencia-idE912-87DD-BE6F
person.identifier.orcid0000-0001-7099-0685
person.identifier.orcid0000-0002-5871-2129
person.identifier.orcid0000-0002-2744-3122
person.identifier.ridC-9293-2009
person.identifier.scopus-author-id8892509700
person.identifier.scopus-author-id6602217393
rcaap.rightsopenAccesspt_PT
rcaap.typebookPartpt_PT
relation.isAuthorOfPublication9f533b0c-b538-4535-ade3-823df5592b88
relation.isAuthorOfPublication150cd45c-566e-40d1-9fb2-8089f66aceec
relation.isAuthorOfPublicationf2430e36-b1fc-4505-8b21-13ff72e3c58f
relation.isAuthorOfPublication.latestForDiscoveryf2430e36-b1fc-4505-8b21-13ff72e3c58f

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