**Silver Recovery from Acidic Solutions by Formation of Nanoparticles and Submicroparticles of Ag on Microfiltration Membranes**

Pilar González1, F. Javier Recio2, Dario Ribera1, Oswaldo González1, Pilar DaSilva2, Pilar Herrasti2 and Mario Avila-Rodriguez1 *1Universidad de Guanajuato, Guanajuato 2Universidad Autónoma de Madrid, Madrid 1México 2España* 
