Work

Planting trees and amending with waste increases the capacity of mine tailings soils to retain Ni, Pb and Zn

Year: 2014

Type: article

Abstract: The sorption capacity for Ni, Pb and Zn of mine tailings soil with and without reclamation treatment (tree planting and waste amendment) was evaluated using the batch adsorption technique. It is important to determine the capacity of waste-amended soils to retain Ni, Pb and Zn, as the sludges used usually have high concentrations of these metals. The results obtained in the present study showed that the untreated mine tailings soil had a low capacity for Ni, Pb and Zn retention. The sorption capacity for Pb increased significantly in all of the treated soils, without any significant differences between them. The treatment that most increased the sorption capacity for Ni and Zn was planting with trees and amending with waste simultaneously, as this increased the concentration of both organic and inorganic carbon, exchangeable calcium, soil pH and effective cation exchange capacity

Source: Spanish Journal of Soil Science

DOI: 10.3232/sjss.2014.v4.n3.02

Authors: Verónica Asensio Fandiño, Flora A. Vega, Rubén Forján, Emma F. Covelo

Institutions: Universidade de São Paulo, Universidade de Vigo

Language: English

Topic: Heavy metals in environment

Subfield: Pollution

Field: Environmental Science

Domain: Physical Sciences

SDGs: Life on land, Responsible consumption and production

Open Access status: hybrid

Estimated APC paid: $1,413