Please use this identifier to cite or link to this item: http://repositorio.unicamp.br/jspui/handle/REPOSIP/77438
Type: Artigo de periódico
Title: Toxicity assay in Kraft E-1 effluent treated by ozone: Algae growth inhibition and cytotoxicity in V79 cells
Author: Assalin, MR
Fabrin-Neto, JB
Duran, N
Haun, M
Abstract: The efficiency of an ozonation process in the degradation of the Kraft E-1 effluent was evaluated. The investigation was focused on the reduction of chemical oxygen demand, total phenols, color and the absorbance at 254 nm. The chronic toxicity was evaluated by growth inhibition of algae Selenatrum capricornutum and cytotoxicity evaluation of effluents samples by determination of the nucleic acid content (NCA) endpoint. After 60 minutes of ozonation, COD and UV254 only reached 21% and 34% efficiency reduction. Total phenols and color were more rapidly removed ( at 10 minutes of treatment). The results showed that the chronic toxicity (Selenastrum capricornutum algae) decreases for all effluent doses studied. The cytotoxicity assay indicated that toxic compounds were not generated by the ozonation process.
Subject: ozone
kraft effluent
toxicity
degradation
Country: EUA
Editor: Taylor & Francis Inc
Rights: fechado
Identifier DOI: 10.1080/01919510601113620
Date Issue: 2007
Appears in Collections:Unicamp - Artigos e Outros Documentos

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