Avaliação do desempenho de mudas de paricá com a utilização de diferentes concentrações de escória de siderurgia

Abstract

Among the various technologies used for remediation of heavy metal contaminated environments, the use of plants intended to reduce the levels of contaminants to safe levels and consistent with the protection of human health, or to prevent / hinder the spread of these harmful substances environment. But, unlike some other technologies considered conventional phytoremediation has great versatility and can be used for remediation of aqueous medium, air or ground, with variations that depend on the objectives to be achieved and can be applied to a wide range of pollutants, organic and inorganic. Thus it becomes important to research local plants that may contribute to the recovery of areas contaminated by heavy metals, which in this work is given focus phytoremediation of soils contaminated by silicates using the plant Shizolobium amazonicum. The experiment was conducted in the Department of Municipal Environment Maraba, in the months of March and April 2013. The results were submitted to analysis of variance and means were compared by Tukey test at 5%. It can be concluded that growth of the species Shizolobium amazonicum occurred regardless of the concentrations of slag and do not affect the growth of the studied species, however the increased amount of magnesium absorbed as the concentration of slag in the soil increased, highlighting treatments T3 and T4 that were above the reference values.