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Evaluation of eventual toxicities of treated textile wastewater using anoxic–aerobic algal–bacterial photobioreactor

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Abstract

Water pollution is one of the major challenges and is of serious concern in the world. Toxicities generated by industrial activities severely deteriorate aquatic and terrestrial ecosystems during their uncontrolled discharge and accentuate water scarcity problems. An adequate treatment of released effluents seems to be mandatory. This study investigated the effect of synthetic textile wastewater (STWW) before and after an innovative algal–bacterial treatment occurred under anoxic–aerobic conditions on growth and mineral contents of radish plants. The health risk assessment was performed after the consumption of irrigated plants by rats. Results revealed a significant reduction in heavy metals content in plants irrigated with treated STWW, and rats fed with these plants showed normal health status. Rats fed with plants irrigated with raw STWW showed a disturbance of their homeostasis. The innovative treatment using algal–bacteria under anoxic–aerobic conditions succeeds to reduce the toxicity of raw STWW and provide an alternative water resource able to tackle water shortage.

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Acknowledgements

The Centre National de Recherche en Sciences des Matériaux Borj Cedria, Tunisia is specially acknowledged for the ICP-AES analysis.

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No funds, grants, or other support was received.

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Authors

Contributions

ZD performed the experiments, analyzed data and wrote the manuscript; AL, RK made contribution to in vivo studies; IBT and DE helped in biochemical analysis, and LCG conducted and supervised the experimentation and reviewed the manuscript for its final approval. All authors read and approved the final version of the manuscript.

Corresponding author

Correspondence to Leila Chekir-Ghedira.

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The authors declare that they have no conflict of interest.

Ethical approval

All experiments obtained the explicit approval of the Tunisian Ethics Animal Committee.

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All authors declare that they have participated in the study and in the development of the manuscript.

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Dhaouefi, Z., Lahmar, A., Khlifi, R. et al. Evaluation of eventual toxicities of treated textile wastewater using anoxic–aerobic algal–bacterial photobioreactor. Environ Geochem Health 44, 4285–4297 (2022). https://doi.org/10.1007/s10653-021-01187-4

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  • DOI: https://doi.org/10.1007/s10653-021-01187-4

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