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Green technologies for cyanobacteria and natural organic matter water treatment using natural based products

2017-09Journal article Restricted access
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dc.contributor.authorRibau Teixeira, Margarida
dc.contributor.authorCamacho, Franciele Pereira
dc.contributor.authorSerrão Sousa, Vânia
dc.contributor.authorBergamasco, Rosangela
dc.date.accessioned2019-11-20T15:07:20Z
dc.date.available2019-11-20T15:07:20Z
dc.date.issued2017-09
dc.description.abstractGreen technologies are environmentally friendly operations that limit the negative impacts of traditional industrial activities and can contribute to solving the challenge of sustainable water management. This work aims to develop a green water treatment sequence using a natural coagulant (Moringa oleifera) and a natural activated carbon (vegetable coconut palm) to remove Microcystis aeruginosa and natural organic matter in an integrated process. The proposed sequence, coagulation/flocculation/dissolved air flotation and activated carbon, is an eco-friendly and innovative option for water treatment managers, since it includes environmentally friendly products for the contaminant removal from water, replacing the traditional inorganic/synthetic coagulants and adsorbents. Results demonstrated that waters with concentrations as high as 150-200 mu g/I. of chlorophyll a and natural organic matter between 5 and 16 mg C/L presented removals higher than 80% for turbidity and chlorophyll a, 70-80% for dissolved organic matter and 80-90% for UV254nm. Moringa oleifera natural coagulant removed almost 80% of Microcystis aeruginosa cells in coagulation/flocculation/dissolved air flotation processes. The coconut palm activated carbon showed a high capacity to adsorb DOC from water with a maximum adsorbed capacity of 51.8 mg/g at equilibrium. The values obtained in treated water for the parameters measured are very encouraging, so this innovative integrated sequence may be used for improving water quality, benefiting human health and wellbeing. (C) 2017 Elsevier Ltd. All rights reserved.
dc.description.sponsorshipCNPq (National Counsel of Technological and Scientific Development)
dc.description.sponsorshipCAPES (Coordination for the Improvement of Higher Education Personnel)
dc.description.versioninfo:eu-repo/semantics/publishedVersion
dc.identifier.doi10.1016/j.jclepro.2017.06.004
dc.identifier.issn0959-6526
dc.identifier.issn1879-1786
dc.identifier.urihttp://hdl.handle.net/10400.1/12990
dc.language.isoeng
dc.peerreviewedyes
dc.publisherElsevier
dc.rights.urihttp://creativecommons.org/licenses/by/4.0/
dc.subjectDissolved air flotation
dc.subjectMoringa-oleifera seeds
dc.subjectDrinking-water
dc.subjectRice Husk
dc.subjectAdsorption
dc.subjectRemoval
dc.subjectCoagulation
dc.subjectTurbidity
dc.subjectCarbon
dc.subjectMechanism
dc.titleGreen technologies for cyanobacteria and natural organic matter water treatment using natural based products
dc.typejournal article
dspace.entity.typePublication
oaire.citation.endPage490
oaire.citation.startPage484
oaire.citation.titleJournal of Cleaner Production
oaire.citation.volume162
person.familyNameRibau Teixeira
person.familyNameSerrão Sousa
person.givenNameMargarida
person.givenNameVânia
person.identifier.ciencia-id9111-87FB-26AA
person.identifier.ciencia-id3D18-B03F-52FB
person.identifier.orcid0000-0002-2153-3282
person.identifier.orcid0000-0002-3800-1688
person.identifier.ridB-9012-2012
person.identifier.scopus-author-id8988625600
rcaap.rightsrestrictedAccess
rcaap.typearticle
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relation.isAuthorOfPublication.latestForDiscovery6f5ba6dd-2326-47fb-a278-85ce38b81c64

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