Skip to main content
Log in

Removing color while lowering toxicity: the case for decolorization of textile dyes and simulated effluents with yeasts

  • Original Paper
  • Published:
International Journal of Environmental Science and Technology Aims and scope Submit manuscript

Abstract

The textile industry produces high amounts of effluents containing synthetic dyes that are recalcitrant and potentially hazardous to the environment, being azo dyes one of the most commonly used classes. Biological methods for dye degradation are promising, but knowledge of the toxicity of the resulting products is key for assessing their safety discharge on the environment. The present study investigated the potential toxicity of simulated effluents with dyes commonly used in the textile industry (reactive, direct, and basic groups). These effluents were treated by yeasts Candida parapsilosis (HOMOGS20B), Candida pseudoglaebosa (LIIIS36B), and Yarrowia lipolytica (HOMOGST27AB) after which their toxicity was assessed using three different assays in order to represent different trophic levels. Mutagenicity was also evaluated. C. pseudoglaebosa (LIIIS36B) was the most effective, completely decolorizing four of the five simulated effluents. Degradation products resulting from the yeast treatment were detected in the supernatant of the treated effluents and could be aromatic amines. Although the toxicity of the original simulated effluents was high, treated effluents demonstrated a decrease in toxicity and none exhibit mutagenicity. This work shows that the three selected yeasts could have a high potential for dye removal from textile wastewaters without generating toxic end-products, thus being an environmentally safe biological method.

This is a preview of subscription content, log in via an institution to check access.

Access this article

Price excludes VAT (USA)
Tax calculation will be finalised during checkout.

Instant access to the full article PDF.

Fig. 1
Fig. 2
Fig. 3
Fig. 4
Fig. 5
Fig. 6

Similar content being viewed by others

References

Download references

Acknowledgements

Authors wish to express their acknowledgments to AQUITEX S.A. for providing all commercial dyes, simulated effluents, and dye-related information. Financial support was provided by NORTE-01-0247-FEDER-017819 “EcoTex—Desenvolvimento de soluções mais sustentáveis para coloração têxtil,” co-financed by Fundo Europeu de Desenvolvimento Regional (FEDER) through Programa Operacional Regional do Norte (PONorte). Author Marta Mendes also would like to acknowledge financial support by Fundação para a Ciência e Tecnologia (FCT) PHD Grant SFRH/BD/129334/2017. The authors would also like to thank the scientific collaboration under the FCT project UID/Multi/50016/2019.

Author information

Authors and Affiliations

Authors

Contributions

All authors contributed to the study conception and design. Material preparation, data collection, and analysis were performed by MM and ACC. The first draft of the manuscript was written by MM, and all authors commented on previous versions of the manuscript. All authors read and approved the final manuscript.

Corresponding author

Correspondence to P. M. L. Castro.

Ethics declarations

Conflict of interest

The authors have no relevant financial or non-financial interests to disclose.

Additional information

Editorial responsibility: Parveen Fatemeh Rupani.

Supplementary Information

Below is the link to the electronic supplementary material.

Supplementary file1 (PDF 131 kb)

Rights and permissions

Springer Nature or its licensor (e.g. a society or other partner) holds exclusive rights to this article under a publishing agreement with the author(s) or other rightsholder(s); author self-archiving of the accepted manuscript version of this article is solely governed by the terms of such publishing agreement and applicable law.

Reprints and permissions

About this article

Check for updates. Verify currency and authenticity via CrossMark

Cite this article

Mendes, M., Cassoni, A.C., Alves, S. et al. Removing color while lowering toxicity: the case for decolorization of textile dyes and simulated effluents with yeasts. Int. J. Environ. Sci. Technol. 21, 13–24 (2024). https://doi.org/10.1007/s13762-023-04969-8

Download citation

  • Received:

  • Revised:

  • Accepted:

  • Published:

  • Issue Date:

  • DOI: https://doi.org/10.1007/s13762-023-04969-8

Keywords

Navigation