Please use this identifier to cite or link to this item: https://ri.unsam.edu.ar/handle/123456789/1005
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dc.contributor.authorHojman, Jonatan Y.-
dc.contributor.authorMeichtry, Jorge Martin-
dc.contributor.authorLitter, Marta Irene-
dc.contributor.authorPerez Coll, Cristina Silvia-
dc.date.accessioned2019-10-31T18:17:41Z-
dc.date.available2019-10-31T18:17:41Z-
dc.date.issued2015-09-
dc.identifier.citationHojman, J. Y. et al (sep 2015) Abatement of toxicity of effluents containing Cr(VI) by heterogeneous photocatalysis. Toxicity assessment by AMPHITOX assay. En: Ecotoxicology and Environmental Safety; Elsevier Science. 122, 545-550-
dc.identifier.issn0147-6513-
dc.identifier.urihttps://ri.unsam.edu.ar/handle/123456789/1005-
dc.description.abstractToxicity of a Cr(VI) solution before and after treatment by TiO2 heterogeneous photocatalysis (HP) was performed with AMPHITOX bioassay. Changes in toxicity on Rhinella arenarum larvae for 10-d were monitored after exposure to an untreated Cr(VI) solution and to the same solution after HP treatment. The HP treatment of a 41.60 mg L−1 Cr(VI) solution reduced to 37.5% the concentration of the metal ion. A 10-fold reduction in toxicity at acute exposure (72 h) and 150-fold reduction in toxicity after 240 h was found. Further, the LOEC value increased from 0.001% for the untreated solution to 0.153% after HP treatment. Moreover, the safe concentration in untreated solution corresponded to 0.0001% sample, and it was 0.01% after the treatment, i.e., 100 times higher. A saving of water of about 100,000 L per L of effluent would be possible through dilution to allow safer concentrations for discharge; the saving would reach the highest value (1,000,000 L per L) at 240 h. Sub-lethal effects were completely absent in larvae exposed to the treated solution. The AMPHITOX test allowed to detect chronic effects at low Cr concentrations, i.e. at environmentally relevant levels.-
dc.formatapplication/pdf-
dc.format.extentpp. 545-550-
dc.language.isoeng-
dc.publisherElsevier Science-
dc.rightsinfo:eu-repo/semantics/restrictedAccess-
dc.rights.urihttp://creativecommons.org/licenses/by-nc-sa/2.5/ar/-
dc.sourceEcotoxicology and Environmental Safety. 2015 122(9): 545-550. Elsevier-
dc.source.urihttp://dx.doi.org/10.1016/j.ecoenv.2015.09.036-
dc.subjectHETEROGENEOUS PHOTOCATALYSIS-
dc.subjectHEXAVALENT CHROMIUM-
dc.subjectAMPHITOX TEST-
dc.subject.classificationCIENCIAS QUÍMICAS-
dc.subject.classificationCIENCIAS NATURALES Y EXACTAS-
dc.titleAbatement of toxicity of effluents containing Cr(VI) by heterogeneous photocatalysis. Toxicity assessment by AMPHITOX assay-
dc.rights.licenseCreative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5)-
dc.description.versioninfo:eu-repo/semantics/publishedVersion-
dc.description.filiationFil: Hojman, Jonatan Y.. Universidad Nacional de San Martín; Argentina-
dc.description.filiationFil: Meichtry, Jorge Martín. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina.-
dc.description.filiationFil: Litter, Marta Irene. Universidad Nacional de San Martín; Argentina. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina-
dc.description.filiationFil: Perez Coll, Cristina Silvia. Universidad Nacional de San Martín; Argentina-
dc.type.openaireinfo:eu-repo/semantics/article-
dc.type.snrdinfo:ar-repo/semantics/artículo-
item.languageiso639-1en-
item.grantfulltextreserved-
item.fulltextCon texto completo-
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