USO DA FOLHA DE COUVE “Brassica Oleracea” NA ADSORÇÃO DE ÍONS Fe2+

Abstract

The development of human activities, as well as the growth of cities, brought with it problems of contamination of water bodies, for example, rivers and lakes, by chemical elements. Among the human activities, the industrial one is one of the main sources of contamination by elements. Iron (Fe), even though it is naturally present in the environment, can become a contaminant. Removing part of the concentration of this element has been studied as a strategy to minimize impacts on the environment. as well as the health of populations. The adsorption of this element is one of the most studied strategies. One of the adsorbent materials with the highest efficiency in adsorbing metallic ions is activated carbon. However, there are limitations on the cost and availability of this material. Alternatives to the use of this type of material have been studied, among them are natural adsorbents. Such materials are called “biosorbent”. This work aims to study the viability and efficiency of a biosorbent produced from cabbage leaves (Brassica Oleracea) in the adsorption of Fe2+ ions. The study of the adsorption of Fe2+ ions was done through the preparation of the adsorbent and its primary characterization. Among the evaluated properties, we have the pH, pHPCZ, organic matter and humidity. The adsorption of Fe2+ ions proved to be viable, considering that already from the use of 0.25 g of the adsorbent, a percentage of 62.0% of removal of these ions is observed. This adsorption is verified after 10 minutes of contact between adsorbent and adsorbate Keywords: adsorption; biosorbent; iron; Green cabbage