info:eu-repo/semantics/article
Design and testing of a pilot scale magnetic separator for the treatment of textile dyeing wastewater
Fecha
2018-04Registro en:
Salinas Larrecharte, Tobias; Durruty, Ignacio; Arciniegas Vaca, Magda Lorena; Pasquevich, Gustavo Alberto; Lanfranconi, Matías; et al.; Design and testing of a pilot scale magnetic separator for the treatment of textile dyeing wastewater; Academic Press Ltd - Elsevier Science Ltd; Journal of Environmental Management; 218; 4-2018; 562-568
0301-4797
CONICET Digital
CONICET
Autor
Salinas Larrecharte, Tobias
Durruty, Ignacio
Arciniegas Vaca, Magda Lorena
Pasquevich, Gustavo Alberto
Lanfranconi, Matías
Orsi, Isabela
Alvarez, Vera Alejandra
Bonanni, Pablo Sebastian
Resumen
Iron nanoparticles can be incorporated on the structure of natural clays to obtain magnetic clays, an adsorbent that be easily removed from a wastewater by magnetic means. Magnetic clays have high adsorption capacities of different contaminants such as heavy metals, fungicides, aromatic compounds and colorants and show rapid adsorption kinetics, but crucial data for achieving its full or pilot scale application is still lacking. In this work, magnetic bentonites with different amounts of magnetite (iron fractions on the clay of 0.55, 0.6 and0.6) were used to remove color from a real textile wastewater. On a first stage the optimal conditions for the adsorption of the dye, including pH, temperature and clay dosage were determined. Also design parameters for the separation process such as residence time, distance from magnet to magnetic clay and magnet strength were obtained. Finally a pilot scale magnetic drum separator was constructed and tested. A removal of 60% of the dye from a wastewater that contained more than 250ppm of azo dye was achieved with only 10min ofresidence time inside the separator.