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Cork industry wastewater characterization assessment of the biodegradability, reuse and of the relationship between BOD, COD and tannins with TOC

2012Journal article Open access
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dc.contributor.authorSantos, Ana
dc.contributor.authorBernardo, Marisa
dc.contributor.authorVespeira, Carla
dc.contributor.authorCantinho, Paula
dc.contributor.authorMinhalma, Miguel
dc.date.accessioned2013-10-24T11:12:18Z
dc.date.available2013-10-24T11:12:18Z
dc.date.issued2012
dc.description.abstractCork processing involves a boiling step to make the cork softer, which consumes a high volume of water and generates a wastewater with a high organic content, rich in tannins. An assessment of the final wastewater characteristics and of the boiling water composition along the boiling process was performed. The parameters studied were pH, color, total organic carbon (TOC), chemical and biochemical oxygen demands (COD, BOD5, BOD20), total suspended solids (TSS), total phenols and tannins (TP, TT). It was observed that the water solutes extraction power is significantly reduced for higher quantities of cork processed. Valid relationships between parameters were established not only envisaging wastewater characterization but also to provide an important tool for wastewater monitoring and for process control/optimization. Boiling water biodegradability presented decreasing values with the increase of cork processed and for the final wastewater its value is always lower than 0.5, indicating that these wastewaters are very difficult to treat by biological processes. The biodegradability was associated with the increase of tannin content that can rise up to 0.7 g/L. These compounds can be used by other industries when concentrated and the clarified wastewater can be reused, which is a potential asset in this wastewater treatment.por
dc.identifier.citationSANTOS, Ana; BERNARDO, Marisa; VESPEIRA, Carla; CANTINHO, Paula; MINHALMA, Miguel - Cork industry wastewater characterization assessment of the biodegradability, reuse and of the relationship between BOD, COD and tannins with TOC. Journal of Water Reuse and Desalination. ISSN 2220-1319. Vol. 2, nr 1 (2012), p. 33-39.por
dc.identifier.issn2220-1319
dc.identifier.other10.2166/wrd.2012.047
dc.identifier.urihttp://hdl.handle.net/10400.21/2772
dc.language.isoengpor
dc.peerreviewedyespor
dc.publisherIWA Publishingpor
dc.subjectBiodegradabilitypor
dc.subjectCork boiling waterpor
dc.subjectTanninspor
dc.subjectWastewater reusepor
dc.titleCork industry wastewater characterization assessment of the biodegradability, reuse and of the relationship between BOD, COD and tannins with TOCpor
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage39por
oaire.citation.issue1por
oaire.citation.startPage33por
oaire.citation.titleJournal of Water Reuse and Desalinationpor
oaire.citation.volume2por
person.familyNameMinhalma
person.givenNameMiguel
person.identifier2161276
person.identifier.ciencia-id5C1D-13E2-201B
person.identifier.orcid0000-0002-6770-194X
person.identifier.ridC-3304-2008
person.identifier.scopus-author-id6506304514
rcaap.rightsrestrictedAccesspor
rcaap.typearticlepor
relation.isAuthorOfPublication8ed0648a-758d-4b1d-b364-f8ea7195308f
relation.isAuthorOfPublication.latestForDiscovery8ed0648a-758d-4b1d-b364-f8ea7195308f

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