Resumen de Degradación de arsénico por pseudomonas aeruginosa para bioremediación de agua. Estudio preliminar

Esther E. Pellizzari, Leonardo G. Marinich, Sebastián A. Flores, Cecilia M. Giménez

• The aim of this study was to investigate the arsenic resistance in pure cultivations of Pseudomonas aeruginosa isolated from Presidencia Roque Sáenz Peña groundwater (Chaco province), and evaluate the possibility of its use to remove arsenic from groundwater. Strains were immobilized in natural stone and cultivated in salts broth and 1 mgAs/L. The arsenic resistance and biofilm formation were observed, obtaining interaction between cells, rock and arsenic. Arsenic removal was evaluated during 3 months and its final percentage of the experiment was 60%.