My SciELO
Services on Demand
Article
Indicators
- Cited by SciELO
Related links
- Similars in SciELO
Share
Revista Cubana de Química
On-line version ISSN 2224-5421
Abstract
OLINTO-GALVAO, Alcione; LADCHUMANANANDASIVAM, Rasiah and GERALDO-KRAMER, Dany. Optimization of Cd (II) adsorption in polymer blends: analysis by factorial design. Rev Cub Quim [online]. 2020, vol.32, n.3, pp. 478-493. Epub Dec 03, 2020. ISSN 2224-5421.
The contamination by heavy metals occurs mainly by industrial effluents, having as important microcontaminant the cadmium, which can cause environmental and human health risks (renal and hepatic damages). Thus, the analysis of new adsorption systems is required, so that the present study aimed to evaluate the interaction of several factors, in factorial design in the adsorption of cadmium in aqueous solution by polymer PVA / amide / Hap polymer. Experimental variables were solution pH (2,0 <A <6,0), initial concentration of cadmium in solution (50 <B <150 mg / L), adsorbent mass (0,02 <C <0,06 g) and processing time (6 <D <24 h). The factorial design presented a coefficient of determination (R²) of 0,982 6. The combination of the pH (A) and the initial (B) factors present a better condition for removal of the cadmium at low initial concentration values relative to the increase in pH.
Keywords : polymeric blends; cadmium adsorption; factorial design.