INTRODUCTION: Textile industry is one of the most common and essential sectors in Tunisia. However, the treatment of textile effluents becomes a university because of their toxic impacts on waters, soils, flora, and fauna. MATERIALS AND METHODS: The aim of this work was to evaluate the ability of Pseudomonas putida mt-2 to decolorize a textile wastewater and to compare the biologic decolorization process to the chemical one currently used by the textile industry. RESULTS: P. putida exhibited a high decolorizing capacity of the studied effluent, compared to the coagulation-flocculation method with decolorization percentage of 86% and 34.5%, respectively. Genotoxicity of the studied effluent, before and after decolorization by P. putida mt-2, was evaluated in vitro, using the SOS chromotest, and in vivo, in mouse bone marrow, by assessing the percentage of cells bearing different chromosome aberrations compared to not treated mice. In addition, textile effluent statistically significant influenced acetylcholinesterase and butyrylcholinesterase activities and lipid peroxidation (p < 0.01) when compared to not-treated mice. Coagulation-flocculation treatment process used by industry was revealed to be ineffective. Indeed toxicities persisted after treatment and the effluent did not show any statistically significant decrease in toxicities compared to non-treated effluent. Our results indicate that P. putida is a promising and improved alternative to treating industrial scale effluent compared to current chemical decolorization procedures used by the Tunisian textile industry.
INTRODUCTION: Textile industry is one of the most common and essential sectors in Tunisia. However, the treatment of textile effluents becomes a university because of their toxic impacts on waters, soils, flora, and fauna. MATERIALS AND METHODS: The aim of this work was to evaluate the ability of Pseudomonas putida mt-2 to decolorize a textile wastewater and to compare the biologic decolorization process to the chemical one currently used by the textile industry. RESULTS:P. putida exhibited a high decolorizing capacity of the studied effluent, compared to the coagulation-flocculation method with decolorization percentage of 86% and 34.5%, respectively. Genotoxicity of the studied effluent, before and after decolorization by P. putida mt-2, was evaluated in vitro, using the SOS chromotest, and in vivo, in mouse bone marrow, by assessing the percentage of cells bearing different chromosome aberrations compared to not treated mice. In addition, textile effluent statistically significant influenced acetylcholinesterase and butyrylcholinesterase activities and lipid peroxidation (p < 0.01) when compared to not-treated mice. Coagulation-flocculation treatment process used by industry was revealed to be ineffective. Indeed toxicities persisted after treatment and the effluent did not show any statistically significant decrease in toxicities compared to non-treated effluent. Our results indicate that P. putida is a promising and improved alternative to treating industrial scale effluent compared to current chemical decolorization procedures used by the Tunisian textile industry.
Authors: Ana Paula Serafini Immich; Antônio Augusto Ulson de Souza; Selene Maria de Arruda Guelli Ulson de Souza Journal: J Hazard Mater Date: 2008-09-13 Impact factor: 10.588
Authors: Hedi Ben Mansour; Kamel Ghedira; Daniel Barillier; Leila Chekir Ghedira; Ridha Mosrati Journal: Environ Sci Pollut Res Int Date: 2011-05-10 Impact factor: 4.223
Authors: Selene Maria Arruda Guelli Ulson de Souza; Eliane Forgiarini; Antônio Augusto Ulson de Souza Journal: J Hazard Mater Date: 2007-06-07 Impact factor: 10.588
Authors: Nosra Methneni; Khawla Ezdini; Nouha Ben Abdeljelil; Joris Van Loco; Kathy Van den Houwe; Riheb Jabeur; Ons Fekih Sallem; Ahlem Jaziri; Mercedes Fernandez-Serrano; Nezar H Khdary; Hedi Ben Mansour Journal: Int J Mol Sci Date: 2021-11-22 Impact factor: 5.923