Please use this identifier to cite or link to this item:
https://ri.unsam.edu.ar/handle/123456789/1005
DC Field | Value | Language |
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dc.contributor.author | Hojman, Jonatan Y. | - |
dc.contributor.author | Meichtry, Jorge Martin | - |
dc.contributor.author | Litter, Marta Irene | - |
dc.contributor.author | Perez Coll, Cristina Silvia | - |
dc.date.accessioned | 2019-10-31T18:17:41Z | - |
dc.date.available | 2019-10-31T18:17:41Z | - |
dc.date.issued | 2015-09 | - |
dc.identifier.citation | Hojman, 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.issn | 0147-6513 | - |
dc.identifier.uri | https://ri.unsam.edu.ar/handle/123456789/1005 | - |
dc.description.abstract | Toxicity 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.format | application/pdf | - |
dc.format.extent | pp. 545-550 | - |
dc.language.iso | eng | - |
dc.publisher | Elsevier Science | - |
dc.rights | info:eu-repo/semantics/restrictedAccess | - |
dc.rights.uri | http://creativecommons.org/licenses/by-nc-sa/2.5/ar/ | - |
dc.source | Ecotoxicology and Environmental Safety. 2015 122(9): 545-550. Elsevier | - |
dc.source.uri | http://dx.doi.org/10.1016/j.ecoenv.2015.09.036 | - |
dc.subject | HETEROGENEOUS PHOTOCATALYSIS | - |
dc.subject | HEXAVALENT CHROMIUM | - |
dc.subject | AMPHITOX TEST | - |
dc.subject.classification | CIENCIAS QUÍMICAS | - |
dc.subject.classification | CIENCIAS NATURALES Y EXACTAS | - |
dc.title | Abatement of toxicity of effluents containing Cr(VI) by heterogeneous photocatalysis. Toxicity assessment by AMPHITOX assay | - |
dc.rights.license | Creative Commons Atribución-NoComercial-CompartirIgual 2.5 Argentina (CC BY-NC-SA 2.5) | - |
dc.description.version | info:eu-repo/semantics/publishedVersion | - |
dc.description.filiation | Fil: Hojman, Jonatan Y.. Universidad Nacional de San Martín; Argentina | - |
dc.description.filiation | Fil: Meichtry, Jorge Martín. Comisión Nacional de Energía Atómica. Gerencia del Área de Seguridad Nuclear y Ambiente. Gerencia de Química (CAC); Argentina. | - |
dc.description.filiation | Fil: 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.filiation | Fil: Perez Coll, Cristina Silvia. Universidad Nacional de San Martín; Argentina | - |
dc.type.openaire | info:eu-repo/semantics/article | - |
dc.type.snrd | info:ar-repo/semantics/artículo | - |
item.languageiso639-1 | en | - |
item.grantfulltext | reserved | - |
item.fulltext | Con texto completo | - |
Appears in Collections: | Artículos de investigadores |
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Ecoenvsaf_2015_122_545–550.pdf | Artículo con publicación restringida por embargo | 448.51 kB | Adobe PDF | Request a copy |
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