Competitive sorption and desorption of heavy metals in mine soils: influence of mine soil characteristics

Journal of Colloid and Interface Science
F A VegaM L Andrade

Abstract

Many mine soils are chemically, physically, and biologically unstable and deficient. They are sometimes amended with sewage sludge and ashes but often contain heavy metals that increase the already high mine soils' heavy metal contents. Cd, Cr, Cu, Ni, Pb, and Zn in mutual competition were added to five mine soils (Galicia, Spain). Soil capacities for heavy metal sorption and retention were determined by means of distribution coefficients and selectivity sequences among metals. Influence of soil characteristics on sorption and retention was also examined. Retention selectivity sequences indicate that, in most of the soils, Pb is the preferred retained metal, followed by Cr. The last metals in these sequences are Ni, Cd, and Zn. Soil organic matter content plays a fundamental role in control of Pb sorption. Gibbsite, goethite, and mica influence Cr retention. Soil organic matter, oxides, and chlorite contents are correlated with K(d sigma sp medium). Heavy metals are weakly adsorbed by soils and then desorbed in high amounts. To recover these soils it is necessary to avoid the use of residues or ashes that contain heavy metals due to their low heavy metal retention capacity.

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Citations

Aug 11, 2010·Environmental Geochemistry and Health·Guangyong GuoPei Zhou
May 17, 2013·Environmental Monitoring and Assessment·Mohsen Jalali, Fahimeh Moradi
Apr 30, 2013·Environmental Science and Pollution Research International·Anderson Martins de Souza BrazLuís Reynaldo Ferracciú Alleoni
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Oct 9, 2015·Environmental Science and Pollution Research International·Kuang HeYongyou Hu
Jan 29, 2013·Journal of Hazardous Materials·A M Ramírez-PérezA Núñez-Delgado
Feb 22, 2012·Journal of Hazardous Materials·M Paz Rodríguez-JordáM Teresa García-González
Apr 19, 2011·Journal of Hazardous Materials·Srilert ChotpantaratKhemarath Osathaphan
Nov 10, 2015·Journal of Hazardous Materials·Jiali YangYonghong Wu
Dec 23, 2008·Journal of Colloid and Interface Science·F A VegaM L Andrade
Jun 24, 2008·Journal of Environmental Management·L RodríguezJ Rincón
Nov 10, 2006·Journal of Hazardous Materials·Emma Fernández CoveloM Luisa Andrade
Oct 30, 2016·International Journal of Environmental Research and Public Health·Muibat Omotola FasholaOlubukola Oluranti Babalola
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Sep 11, 2018·The Science of the Total Environment·Xia ZhangNan Wang

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