Biosorción de plomo, zinc y plata con biomasa microbiana aislada de aguas residuales de la provincia de Jaén

  1. Antonio Jesús Muñoz Cobo
Supervised by:
  1. Francisco Espínola Lozano Director
  2. Encarnación Ruiz Ramos Director

Defence university: Universidad de Jaén

Fecha de defensa: 09 February 2016

Committee:
  1. Gabriel Blázquez García Chair
  2. Hikmate Abriouel Ayani Secretary
  3. Mohamed Larbi Merroun Committee member
Department:
  1. INGENIERÍA QUÍMICA,AMBIENTAL Y DE LOS MATERIALES

Type: Thesis

Teseo: 427273 DIALNET lock_openRUJA editor

Abstract

This doctoral thesis focuses on the study of biosorption with microorganisms, one of the most promising technologies for the treatment of wastewaters contaminated with heavy metals. First, ubiquitous microorganisms were isolated from wastewater treatment plants in the province of Jaen. Ten of them were selected because of their resistance and tolerance to the three investigated metals (lead, zinc and silver) and were identified by molecular techniques. Finally, the bacterium Klebsiella sp. 3S1 was selected to perform equilibrium and kinetic studies, the optimization of the factors involved and the investigation of bacteria-metal interaction mechanism for all three metals. The viability of Klebsiella sp. 3S1 for the biosorption of lead in a fixed bed column operating in continuous mode was also tested. It was evidenced the formation of a bacterial biofilm on the ceramic support, with high metal uptake capacity and high regeneration efficiency.