APPLICATION OF NANOCOMPOSITOS CLAY -CARBOXIMETHYLQUITOSAN - NANOPARTICLES OF SILVER IN FILTERS FOR THE TREATMENT OF WATER OF RURAL AREAS OF CAMANA, AREQUIPA

• Autores: Talavera Núñez, María Elena, Zea Apaza, Irene, Vera Gonzales, Corina, Zea Álvarez, Julia, Benavente Talavera, Luis Rodrigo
• Formato: artículo
• Fecha de Publicación: 2018
• Institución: Sociedad Química del Perú
• Repositorio: Revista de la Sociedad Química del Perú
• Lenguaje: español
• OAI Identifier: oai:rsqp.revistas.sqperu.org.pe:article/69
• Enlace del recurso: http://revistas.sqperu.org.pe/index.php/revistasqperu/article/view/69
• Nivel de acceso: acceso abierto
• Materia: clay; filter; carboximethyl chitosan; silver nanoparticles; nanocomposite; arcilla; filtro; carboximetilquitosano; nanopartículas de plata; nanocompósito

A filter made of a nanocomposite of clay – carboximethylchitosan – silver nanoparticles was created to eliminate bacteria and anions in water for human consumption. The silver nanoparticles were obtained by reduction of silver nitrate 1mM, with carboximethyl chitosan at 0.01% and sodium borohydrido 2mM as starter of the reduction. Then the clay filters were made with wood sawdust as the pore maker in a 2:1 proportion; it was molded, dried and sinterized at 800°C for 3 hours. Quickly the filters were impregnated with the colloidal dispersion of carboximethyl chitosan – silver nanoparticles by immersion for 12 hours. Four water sampling points were defined: Huacapuy, La Punta, Plaza de Quilca, Caleta de Quilca. When evaluating the filtering capacity of the filters, it was found that the following were removed: conductivity 84.03% in La Plaza de Quilca, sulfates 85.48% in La Plaza de Quilca; 93.93% chlorides in La Plaza de Quilca. On the other hand, fecal coliform bacteria and total coliforms were removed 100% at La Punta and Plaza de Quilca. No coliform bacteria were found in Huacapuy or in the Caleta de Quilca. So it can be confirmed that the results have a significant removal percentage in the elimination of anions, in terms of total coliform bacteria and fecal coliforms were removed in its entirety