Utilize este identificador para referenciar este registo: http://hdl.handle.net/10400.6/1960
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dc.contributor.authorRodrigues, A. L.-
dc.contributor.authorMachado, A.-
dc.contributor.authorNobrega, J. M.-
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.identifier.issn1735-2630-
dc.identifier.urihttp://hdl.handle.net/10400.6/1960-
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.language.isoengpor
dc.publisherSpringerpor
dc.rightsopenAccesspor
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-epsilon-caprolactone based biofilm carrier for nitrate removal from waterpor
dc.typearticlepor
degois.publication.issue2por
degois.publication.firstPage263por
degois.publication.lastPage268por
degois.publication.titleINTERNATIONAL JOURNAL OF ENVIRONMENTAL SCIENCE AND TECHNOLOGYpor
dc.peerreviewedyespor
degois.publication.volume11por
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