The from Huelva checks the usefulness of the sludge of marble to treat acidic waste
September 3, 2010
For a year, the researchers Juan Carlos Fernandez Caliani and tape beard Brioso used these waste - basically composed of calcium carbonate micronized - as additives for assisted natural rehabilitation of soils contaminated by acid drainage from the mining tailings. In this way, and after field testing, managed to raise the pH of the solution of the soil from 3.2 to 6, getting an immobilization of potentially toxic elements, such as aluminum, manganese, copper, lead, zinc and cadmium. "The effect caused by soil amendment on the bioavailability and phytotoxicity of these pollutants is a promising result to assist in the natural revegetation of the soil", stress researchers.