Humanity and industrialization have led to ecosystems, in all their matrices, being compromised in terms ofpollution generated by different metals. Among them we find mercury and lead, both correspond to metals highlydangerous for all ecosystems and their trophic chains. In this review we will look at the dangers of these metals and theways in which they can be removed, ranging from more traditional processes to adsorption processes withmaterials derived from natural sources and how they can be an effective source of heavy metal removal.