Toxicities effects of pharmaceutical, olive mill and textile wastewaters before and after degradation by Pseudomonas putida mt-2.
BACKGROUND
Removal of numerous classes of chemical pollutants from the industrial wastewater such as textile, pharmaceutical and olive mill using conventional wastewater treatment, is incomplete and several studies suggested that improvement of this situation would require the application of biological treatment techniques. Dyes, polyphenols and drugs are an environmental pollutants extremely toxics to plants and other living organisms including humans. These effluents were previously treated by Pseudomonas putida. The main of this work was to evaluate the in vivo toxicity of the three wastewaters.


METHODS
Writhes and convulsant effect of effluents were carried out and were compared to the treated effluents. Only pharmaceutical wastewater was exhibited a convulsant effect which observed in mice treated by effluent. On the other hand, all industrial wastewater induced significantly an algogenic effects particularly when mice were treated by the pharmaceutical wastewater (Number of writhes = 44).


CONCLUSIONS
Toxicity was totally removed when mice were treated by the bio remediated effluent. This indicates that P. putida was able to completely detoxify the toxic industrial effluent.
Laboratoire de biotechnologie et Valorisation de Bio Géo Ressources (LBVBGR) Institut Supérieur de Biotechnologie - ISBST BioTechPole Sidi Thabet Université Manouba, Ariana 2020, Tunisie.
Hedi Ben
HB
Mansour
Laboratoire de biotechnologie et Valorisation de Bio Géo Ressources (LBVBGR) Institut Supérieur de Biotechnologie - ISBST BioTechPole Sidi Thabet Université Manouba, Ariana 2020, Tunisie.
Afef
A
Dellai
Laboratoire de Recherche des Substances Biologiquement Compatibles, Faculté de Médecine Dentaire, Rue Avicenne, Monastir 5000, Tunisie.
Yosra
Y
Ayed