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ESTUDIO DE LA TOXICIDAD ASOCIADA AL VERTIMIENTO DE AGUAS RESIDUALES CON PRESENCIA DE COLORANTES Y PIGMENTOS EN EL AREA METROPOLITANA DEL VALLE DE ABURRA

ESTUDIO DE LA TOXICIDAD ASOCIADA AL VERTIMIENTO DE AGUAS RESIDUALES CON PRESENCIA DE COLORANTES Y PIGMENTOS EN EL AREA METROPOLITANA DEL VALLE DE ABURRA



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ESTUDIO DE LA TOXICIDAD ASOCIADA AL VERTIMIENTO DE AGUAS RESIDUALES CON PRESENCIA DE COLORANTES Y PIGMENTOS EN EL AREA METROPOLITANA DEL VALLE DE ABURRA. (2017). Revista EIA, 13(26), 61-74. https://doi.org/10.24050/reia.v13i26.742

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Santiago-Alonso Cardona Gallo
Leonardo-Fabio Barrios-Ziolo
Luisa-Fernanda Gaviria-Restrepo
Edison-Alexander Agudelo

Santiago-Alonso Cardona Gallo,

Antioquia, Medellín

Los colorantes y pigmentos están comenzando a ser considerados en el país como compuestos que pueden presentar características toxicológicas más allá de los aspectos estéticos en las aguas residuales.  Esta investigación presenta los efectos ecotoxicológicos asociados a la capacidad que poseen las sustancias generadoras de color (colorantes y pigmentos) de inhibir la transmisión de la luz en el medio acuático, además de la toxicidad asociada a la molécula que las constituye. A partir de un diseño experimental se correlacionó el efecto de la concentración, contenido de solidos totales y la longitud de onda de máxima absorción de diferentes colorantes sobre el organismo Selenastrum Capricornutum; los modelos de regresión obtenidos permitieron predecir en un 94 y 99% los efectos anteriormente mencionados. La toxicidad molecular fue evaluada utilizando la prueba de toxicidad de Daphnia magna. Finalmente se estudió la toxicidad de vertimientos de aguas residuales correspondientes a los principales sectores industriales del Área Metropolitana del Valle de Aburrá.

 


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