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A degradation and toxicity study of threetextile reactive dyes by ozone

机译:臭氧对三种纺织品活性染料的降解和毒性研究

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Textile reactive dyes are very recalcitrant to biodegradation, causing aesthetic, acute and chronic toxicity problems in receiving waters. In this study, we present the degradation of three different reactive dyes (reactive Black5, Reactive Blue 19 and Reactive Blue 21) by ozone, at two different pH conditions. The ozonation process achieved a very fast decoloration rate for the studied dyes. The influence of pH in the ozonation of these dyes was only significant for Reactive Black 5. The toxicity of dyes, after pre-treatment, was evaluated using Vibrio Fisheri(microtox).
机译:纺织活性染料非常难以生物降解,在接收水中会引起美学,急性和慢性毒性问题。在这项研究中,我们介绍了臭氧在两种不同的pH条件下对三种不同的活性染料(活性黑5,活性蓝19和活性蓝21)的降解。臭氧化过程对所研究的染料实现了非常快的脱色速度。 pH值对这些染料臭氧化的影响仅对活性黑5有意义。在预处理后,使用弧菌Fisheri(microtox)评估了染料的毒性。

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