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A poly-Ꜫ-caprolactone based biofilm carrier for nitrate removal from water

2014-03Journal article Open access
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dc.contributor.authorRodrigues, A. L.
dc.contributor.authorMachado, Ana
dc.contributor.authorNóbrega, J. Miguel
dc.contributor.authorAlbuquerque, Antonio
dc.contributor.authorBrito, A.G.
dc.contributor.authorNogueira, Regina
dc.date.accessioned2014-06-30T17:46:14Z
dc.date.available2014-06-30T17:46:14Z
dc.date.issued2014-03
dc.description.abstractNitrate removal from water has been accomplished by heterotrophic biofilms using organic carbon as a source of reducing power. To overcome the natural limitation in organic carbon in water, a poly-epsilon-caprolactone based biofilm carrier that serves simultaneously as a biofilm carrier and as a source of organic carbon was developed and tested in the present work. The feasibility of the new biofilm carrier for nitrate removal from water was evaluated in a packed bed reactor. The combination of size and structure provided a carrier element having high surface area and void volume, 1,170 m(2)/m(3) and 67 %, respectively. A maximum denitrification rate of 4.4 mg N-NO3-/(L.h) (9.2 mg N-NO3-/(m(2).h)) was achieved in the packed bed reactor at 20 degrees C and pH 7.0. Main advantages of the biofilm carrier developed in the present work are its mechanical stability in water even after biofilm formation and controlled release of organic carbon by enzymatic reactions. The proposed biotechnology to remove nitrate from groundwater is robust and easy to operate.por
dc.identifier.doi10.1007/s13762-013-0250-z
dc.identifier.issn1735-2630
dc.identifier.urihttp://hdl.handle.net/10400.6/1960
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherSpringerpor
dc.relationA new generation of biofilm supports with controlled carbon release properties
dc.subjectBiodegradable polymerpor
dc.subjectBiofilmpor
dc.subjectBiofilm reactorpor
dc.subjectTratamento de águas residuaispor
dc.subjectDenitrificationpor
dc.subjectBiofilterspor
dc.subjectSolid carbon sourcepor
dc.subjectPacked bed reactorpor
dc.titleA poly-Ꜫ-caprolactone based biofilm carrier for nitrate removal from waterpor
dc.typejournal article
dspace.entity.typePublication
oaire.awardTitleA new generation of biofilm supports with controlled carbon release properties
oaire.awardURIinfo:eu-repo/grantAgreement/FCT/5876-PPCDTI/PTDC%2FBIO%2F77936%2F2006/PT
oaire.citation.endPage268por
oaire.citation.issue2por
oaire.citation.startPage263por
oaire.citation.titleINTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGYpor
oaire.citation.volume11por
oaire.fundingStream5876-PPCDTI
person.familyNameMachado
person.familyNameNóbrega
person.familyNameCarvalho de Albuquerque
person.familyNameBrito
person.familyNameNogueira
person.givenNameAna
person.givenNameJoão Miguel
person.givenNameAntonio João
person.givenNameAntonio Guerreiro de
person.givenNameRegina
person.identifier1284649
person.identifier.ciencia-id7D17-B382-26C6
person.identifier.ciencia-idDD14-7E8A-7F7E
person.identifier.ciencia-id3319-F1FE-0DA8
person.identifier.orcid0000-0003-1947-8605
person.identifier.orcid0000-0002-5303-6467
person.identifier.orcid0000-0001-7099-0685
person.identifier.orcid0000-0003-1356-3358
person.identifier.orcid0000-0003-2759-5035
person.identifier.ridG-1825-2011
person.identifier.ridC-9293-2009
person.identifier.ridH-9503-2012
person.identifier.scopus-author-id7201480880
person.identifier.scopus-author-id7102046214
person.identifier.scopus-author-id8892509700
person.identifier.scopus-author-id9636367000
person.identifier.scopus-author-id18634949100
project.funder.identifierhttp://doi.org/10.13039/501100001871
project.funder.nameFundação para a Ciência e a Tecnologia
rcaap.rightsopenAccesspor
rcaap.typearticlepor
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