Evaluation of Metal Attenuation from Mine Tailings in SE Spain (Sierra Almagrera): A Soil-Leaching Column Study

被引：26

作者：

Navarro Flores, A. ^{[1
]}

Martinez Sola, F. ^{[2
]}

机构：

[1] Univ Politecn Cataluna, Dept Fluidos M, ETSEIAT, Terrassa 08222, Spain

[2] Deretil SA, Cuevas Del Almanzora 04618, Almeria, Spain

来源：

MINE WATER AND THE ENVIRONMENT | 2010年 / 29卷 / 01期

关键词：

Leaching; Metals; Mine sites; Soils; Tailings; CARBONATE-BUFFERED SOLUTION; SEMIARID ENVIRONMENT; ACID NEUTRALIZATION; CONTAMINATED SOIL; MINING ACTIVITIES; PYRITE OXIDATION; TOXIC ELEMENTS; DE-CARTAGENA; HEAVY-METALS; MOBILITY;

D O I：

10.1007/s10230-010-0099-z

中图分类号：

TV21 [水资源调查与水利规划];

学科分类号：

081501 ;

摘要：

A laboratory study was undertaken using mine tailings and soil columns to evaluate some of the natural processes that can control the mobility of metals at Pb-Ag mine tailings impoundments. The effects of buffering, pH, and salinity were examined with tailings from the El Arteal deposit. Al, Ba, Cd, Cu, Fe, Mn, Ni, Pb, Sr, and Zn were mobilized when the tailings were leached. However, when the mine tailings were placed above alluvial soils, Al, Ba, Cd, Cu, Mn, Pb, and Zn were retained, although Fe and Sr clearly remained mobile. Most of the metal retention appears to be associated with the increase in pH caused by calcite dissolution. The sorption of some metals (Cu, Pb, and Zn) onto oxyhydroxides of Fe and Mn, sulphates, clay materials, and organic matter may also explain the removal of these metals from the leachate.

引用

页码：53 / 67

页数：15

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