Toxicity on aquatic organisms exposed to secondary effluent disinfected with chlorine, peracetic acid, ozone and UV radiation

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dc.contributor.authorCosta, Juliana Berninger da
dc.contributor.authorRodgher, Suzelei [UNESP]
dc.contributor.authorDaniel, Luiz Antonio
dc.contributor.authorGaeta Espindola, Evaldo Luiz
dc.contributor.institutionNatl Council Sci & Technol Dev CNPq
dc.contributor.institutionUniversidade Estadual Paulista (Unesp)
dc.contributor.institutionUniversidade de São Paulo (USP)
dc.date.accessioned2015-03-18T15:53:02Z
dc.date.available2015-03-18T15:53:02Z
dc.date.issued2014-11-01
dc.description.abstractThe toxic potential of four disinfectant agents (chlorine, ozone, peracetic acid and UV radiation), used in the disinfection of urban wastewater, was evaluated with respect to four aquatic organisms. Disinfection assays were carried out with wastewater from the city of Araraquara (So Paulo State, Brazil), and subsequently, toxicity bioassays were applied in order to verify possible adverse effects to the cladocerans (Ceriodaphnia silvestrii and Daphnia similis), midge larvae Chironomus xanthus and fish (Danio rerio). Under the experimental conditions tested, all the disinfectants were capable of producing harmful effects on the test organisms, except for C. xanthus. The toxicity of the effluent to C. silvestrii was observed to increase significantly as a result of disinfection using 2.5 mg L-1 chlorine and 29.9 mg L-1 ozone. Ozonation and chlorination significantly affected the survival of D. similis and D. rerio, causing mortality of 60 to 100 % in comparison to the non-disinfected effluent. In experiments with effluent treated with peracetic acid (PAA) and UV radiation, a statistically significant decrease in survival was only detected for D. rerio. This investigation suggested that the study of the ideal concentrations of disinfectants is a research need for ecologically safe options for the treatment of wastewater.en
dc.description.affiliationNatl Council Sci & Technol Dev CNPq, COIAM, Oceanog & Environm Impacts Coordinat Program, BR-71605160 Brasilia, DF, Brazil
dc.description.affiliationUNESP Univ Estadual Paulista, Dept Environm Engn, BR-12245000 Sao Jose Dos Campos, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Sao Carlos Engn Sch, Dept Hydraul & Sanitat, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUniv Sao Paulo, Sao Carlos Engn Sch, Water Resources & Appl Ecol Ctr, BR-13560970 Sao Carlos, SP, Brazil
dc.description.affiliationUnespUNESP Univ Estadual Paulista, Dept Environm Engn, BR-12245000 Sao Jose Dos Campos, SP, Brazil
dc.description.sponsorshipCoordenação de Aperfeiçoamento de Pessoal de Nível Superior (CAPES)
dc.format.extent1803-1813
dc.identifierhttp://dx.doi.org/10.1007/s10646-014-1346-z
dc.identifier.citationEcotoxicology. Dordrecht: Springer, v. 23, n. 9, p. 1803-1813, 2014.
dc.identifier.doi10.1007/s10646-014-1346-z
dc.identifier.issn0963-9292
dc.identifier.urihttp://hdl.handle.net/11449/116302
dc.identifier.wosWOS:000343877400021
dc.language.isoeng
dc.publisherSpringer
dc.relation.ispartofEcotoxicology
dc.relation.ispartofjcr1.987
dc.relation.ispartofsjr0,797
dc.rights.accessRightsAcesso restrito
dc.sourceWeb of Science
dc.subjectAcute toxicityen
dc.subjectZooplanktonen
dc.subjectFishen
dc.subjectMidgeen
dc.subjectDisinfectionen
dc.titleToxicity on aquatic organisms exposed to secondary effluent disinfected with chlorine, peracetic acid, ozone and UV radiationen
dc.typeArtigo
dcterms.licensehttp://www.springer.com/open+access/authors+rights?SGWID=0-176704-12-683201-0
dcterms.rightsHolderSpringer
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