Fitotoxicidad de pigmentos textiles en aguas residuales biorremediadas

Abstract

Wastewater from textile industries is a source of contamination of synthetic textile dyes. Bioremediation for this wastewater is an effective solution. However, a remediation protocol based on the use of bacteria must ensure the degradation of the contaminating pigment and the removal of any toxic components in the process. For this, a synthetic dye was degraded by bacterial remediation obtaining a wastewater, which was analyzed by a phytotoxicity assay with Phaseolus vulgaris seeds. In addition, the toxicity analysis was complemented by microscopic observations and protein analysis. The study revealed the possibility of degrading a synthetic textile dye using bioremediation, and this mechanism did not present toxicity that affected the growth of plant organisms, these organisms displayed normal growth and development. Thus, this study concludes the appropriate use of bacterial bioremediation applied in the textile industry for the treatment of textile dye-contaminated wastewater. Key words: Bioremediation, Coomassie Brilliant Blue, bacteria, germination test, Phaseolus vulgaris.