Estudios Preliminares para la Remoción de Arsénico en Aguas Subterráneas Utilizando Métodos de Adsorción

Abstract

The quality of groundwater in the natural state is related to the properties of the soil through which it flows. Arsenic (As) is an element that is harmful to health, both in high concentrations and in chronic intake in low concentrations.
In this research, groundwater samples from the city of Rafaela and Sunchales were studied, which have arsenic values higher than the limit established by the Argentine Food Code (CAA).
In the adsorption a solid is used to remove dissolved substances from the water. In order to remove As, different adsorbents such as zeolite, bentonite, La Rioja clay, loamy clay soil of Santa Fe and Misiones clay were studied. Due to its effectiveness, the Misiones clay was selected and it was worked with a column composed of it and filtration sands, obtaining an approximately 80% removal of As.