Determining toxicity trends in the ozonation of synthetic dye wastewaters using the nematode Caenorhabditis elegans.


The nematode Caenorhabditis elegans was used in 72-h toxicity tests to evaluate the influence of ozonation on the toxicity of three synthetic azo dye wastewaters (two reactive dyes and one acid-based dye). The two reactive dye wastewaters contained high concentrations of NaCl (89-112 g/L) in addition to potentially toxic dye components. To determine the… (More)


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