Abstract

VIZCARRA N, Silvana et al. Determinación de parámetros óptimos de adsorción de plomo (II) en aguas residuales industriales mediante un compósito formado por losas y cerámica. Rev. Bol. Quim [online]. 2023, vol.40, n.3, pp.11-19. ISSN 0250-5460.  https://doi.org/10.34098/2078-3949.40.3.2.

Determination of optimal adsorption parameters of lead (II) in industrial wastewater through a composite formed by flagstone and ceramic. The problem of water contamination by lead, derived from mining activity, demands new decontamination methodologies by adsorption.

The use of some waste from civil works coatings as an adsorbent was investigated. This is the case of ceramics, and waste from the exploitation of flagstone, an abundant resource in the region. A mixture of both materials was made in a proportion of 50% each to obtain a ceramic flagstone composite. Lead nitrate solutions of concentrations of 0.1 ppm and 0.2 ppm were prepared in volumes of 300 ml. These solutions were stirred at 500 rpm and 4 g/l and 8 g/l of the ceramic flagstone composite was added, keeping the pH constant at 5.5. The statistical analysis allowed us to conclude that the optimal adsorption parameters are the use of 8 g/l of composite and an adsorption time of 2 h. *Mail to: pavelds1@yahoo.com

Keywords : Adsorption; Lead; Flagstone; Ceramic; Composite.

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