A utilização de carvões ativados na remoção de contaminantes de águas: uma revisão acerca dos métodos em batelada e coluna

Abstract

The contamination of water resources is a serious problem that generates environmental liabilities and hurtful effects to the population, which can cause several harm. The development of technologies turned at the treatment of the sources that cause these contaminations, has shown itself in the last decades as something essential and the focus of research that aims to obtain efficient and low cost treatment methods, in order to minimize these effects. Among the various technologies that have been developed and can be applied for this purpose, there are the adsorption processes. The adsorption presents itself as an economical and efficient alternative for treatment of contaminants presents in water, because it’s a technique that uses several natural materials. One of this materials that can be used is activated carbon, which can be produced using different raw materials of natural or residual origins. The purpose of this study was to present a review, where the scientific articles were obtained from an international database with scientific relevance, such as the Science Direct portal. These were filtered year by year from 2001 to 2020, being selected 4 or 5 articles per year. The selected articles were classified according to the methodology used. Thus, the objective of this work was to perform a review of the use of different activated carbon for the removal of contaminants using the adsorption process, differentiating the adsorption method used: batch or column (fixed bed).