Effects of vegetation on chemical and mineralogical characteristics of soils developed on a decantation bank from a copper mine

The Science of the Total Environment
B CerqueiraLuisa Andrade

Abstract

Open cast mining has a strong impact on the environment, the intensity depending on the morphology of the deposit and on the nature of the minerals. At Touro mine (NW Spain) there is a large area covered by tailings, one of which, called the "sedimentation bank", was used to deposit sludge resulting from the extraction of copper in the flotation plant. Three zones were selected and the soils were sampled to analyse the changes brought about by vegetation on the chemical and mineralogical properties of the soils developed over the sedimentation bank and its development over time. The vegetation increased the pH, contents of organic material, nitrogen, clay and free oxides of Fe and Al, and the cationic exchange capacity of the soils. The decrease in the sulphide content, benefited by the vegetation process, led to a reduction in the total content of Cr and Cu. The vegetation also contributed towards the alteration of the primary minerals. The transformation of jarosite, the formation of nanocrystals of hematite, goethite, hydroxypolymers, and amorphous minerals that contained Cu, Cr and Pb were observed. Nevertheless the high Cu and Cr contents indicate that it is advisable to change the restoration process.

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Citations

Aug 27, 2013·The Science of the Total Environment·Eddy MoorsArabinda Mishra
Jun 4, 2014·Environmental Science and Pollution Research International·Daniel Arenas-LagoMaría Luisa Andrade
Nov 10, 2015·Chemosphere·Adilson C DalmoraLuis F O Silva
Jan 24, 2015·The Science of the Total Environment·Saiful IslamShigeki Masunaga
Feb 22, 2013·The Science of the Total Environment·Xiangyu WangFang Li
Jan 10, 2013·The Science of the Total Environment·Shibin LiJaclyn E Cañas-Carrell
Nov 28, 2012·The Science of the Total Environment·Jean-Pierre KaiserPeter Wick
Oct 16, 2012·The Science of the Total Environment·Julio CastilloJosé M Nieto
Nov 8, 2015·The Science of the Total Environment·Héctor MorillasJuan Manuel Madariaga
Sep 19, 2015·The Science of the Total Environment·Adilson C DalmoraLuis F O Silva
Oct 17, 2015·The Science of the Total Environment·Ismael Luís SchneiderLuís Felipe Silva Oliveira
May 29, 2013·The Science of the Total Environment·Laura ChekliHo Kyong Shon
Oct 23, 2013·The Science of the Total Environment·Concepción García-GómezMaría Dolores Fernández
Feb 19, 2014·The Science of the Total Environment·Karine O GarciaLuis F O Silva
Dec 3, 2013·The Science of the Total Environment·Edyta KoneckaAdam Kaznowski
Sep 30, 2014·The Science of the Total Environment·Mohamed BouriougBadr Alaoui-Sossé
Jul 20, 2016·Environmental Science and Pollution Research International·Dalel BelhajMonem Kallel
May 20, 2017·Environmental Science and Pollution Research International·Youyuan ChenJia Xin
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Jan 29, 2020·Environmental Science and Pollution Research International·Matthias Monneron-GyuritsAlexandra Courtin-Nomade
Oct 30, 2015·Environmental Science and Pollution Research International·Jiawei WangZhenyao Shen
Sep 18, 2020·International Journal of Environmental Research and Public Health·Natividad MiguelMaría P Ormad
Dec 12, 2018·International Journal of Environmental Health Research·Ali Keshavarzi, Vinod Kumar
Sep 28, 2017·The Science of the Total Environment·Quentin VincentCorinne Leyval

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