A by-product of industry of alumu00ecnio as amenizante of areas contaminated with trace elements

摘要

A by-product of industry of alumu00ecnio as amenizante of areas contaminated with trace elements. The present invention is the use of by-product of aluminum industry, also known as the red mud and red mud as amenizante of areas contaminated with trace elements, among which Ci Tam is Zn, Cu, CD, Pb, as.The by-product of aluminum industry is generated during the processing of bauxite for the extraction of aluminum. Because this material alkaline and rich in oxides, the red mud raises the soil pH and is constituted in a matrix that retains the toxic elements.Its application in contaminated areas in the proportion of up to 5%, based on weight, and incorporation into the soil to a depth of up to 0.30 m, promotes the retention of trace elements. These elements, and sorvidos in a solid matrix will become unavailable to be absorbed by the Plants transferred to the food chain or leachate to groundwater.