%0 Journal Article
	%A J. Ramírez-Ortiz and  J. Núñez Monreal
	%D 2009
	%J International Journal of Geological and Environmental Engineering
	%B World Academy of Science, Engineering and Technology
	%I Open Science Index 27, 2009
	%T Study of Soil Contaminated with Arsenic, Cadmium and Lead in Ancient Tailings in Zacatecas, México
	%U https://publications.waset.org/pdf/12338
	%V 27
	%X Due to the growth of the urban area towards lands
contaminated with ancient tails, in this work we evaluated if the
leaching with calcium thiosulfate (CaS2O3) for the recovery of silver,
gold and mercury from this soil, also dissolves arsenic, cadmium and
lead; for this, we determined their quantity per each fraction of size
of particle of the soil before and after the dissolution. Half of the soil
samples were leached in the plant Beneficiadora de Jales del Centro,
S. A. de C.V. and the rest of them remained in the laboratory. The
ICP-OES technique was used to determine the amounts of arsenic,
cadmium and lead, in the samples of both lots. The soil samples were
collected in a neighboring area at El Lampotal, Vetagrande,
Zacatecas, México, with an extension of 600 m2 at 22º52' 37.69'' N,
102º25' 11.73'' W. The amount of arsenic, cadmium and lead found
in nonleached soil and for a particle size of 47 μm was 203.72±3.73,
33.63±1.31 and 3480.99±20.4 mg/kg respectively.
	%P 95 - 99