Absorventes utilizados para o tratamento de águas subterrâneas: uma revisão.

Abstract

Drinking water is the one that presents the most suitable form for the population to consume, does not contain impurities, meets the established drinking standard and does not pose a health risk. It is necessary to treat water, either through physical or chemical processes. Adsorption is an efficient and accessible technique in the metal removal sector in water treatment. It is a physical-chemical process involved in water treatment in order to reduce metals, contaminants, industrial effluents and several other pollutants. The adsorption capacity is related to the properties of the adsorbents and affinity with the element to be removed from the water, making it essential to choose the correct adsorbent to be used. Groundwater is a type of water that contributes to the maintenance of life, resulting from the infiltration of part or all of the precipitated rainwater, being of great importance for freshwater reservoirs. Thus, the objective of this research is to analyze the efficiency of adsorbents for the treatment of groundwater in relation to the cost-benefit and to verify the main adsorbents used in adsorption through a literature review.