Cu retention in an acid soil amended with perlite winery waste
2016
Rodríguez-Salgado, Isabel | Pérez Rodríguez, Paula | Gómez-Armesto, Antía | Nóvoa-Muñoz, Juan Carlos | Arias-Estévez, Manuel | Fernández-Calviño, David
The effect of perlite waste from a winery on general soil characteristics and Cu adsorption was assessed. The studied soil was amended with different perlite waste concentrations corresponding to 10, 20, 40 and 80 Mg ha⁻¹. General soil characteristics and Cu adsorption and desorption curves were determined after different incubation times (from 1 day to 8 months). The addition of perlite waste to the soil increased the amounts of organic matter as well as soil nutrients such as phosphorus and potassium, and these increments were stable with time. An increase in Cu adsorption capacity was also detected in the perlite waste-amended soils. The effect of perlite waste addition to the soil had special relevance on its Cu adsorption capacity at low coverage concentrations and on the energy of the soil-Cu bonds.
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