Fosfogesso as an adjunct of the by-product of aluminium indu00e9stria for use as adsorbent and amenizante of contaminated areas

摘要

b fosfogesso as adjuvant of by-product of aluminum indu00e9stria for use as adsorbent and amenizante of contaminated areas d the present invention refers to the use of fosfogesso as adjuvant of by-product of aluminum industry, also known as the red mud and red mud, for use as a An adsorbent and amenizante of areas contaminated with cations and u00e2nu00edons, such as: Zn, Cu, CD, Pb, as,P and others.Because it is alkaline material enriched with Ca and 5 and containing high concentrations of u00e1xidos, the by-product of aluminum industry when reacted with fosfogesso is a matrix that, in addition to retain large quantities of toxic elements, provides when applied to the soil Contaminated and with the potential to generate acid drainage.Lower toxicity of contaminants and a better environment for the growth and development of plants. Its application in contaminated areas in the proportion of up to 12%, on the basis of by weight, and incorporation into the soil or waste mining, promotes the retention of cationic and anionic contaminants and neutralization of acidity.The inorganic elements, and sorvidos in a solid matrix will become unavailable to be absorbed by plants, transferred to the food chain or leachate to groundwater, which substantially reduces the environmental pollution and the eutrophication of water in CA So the phosphorus.