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| Content Provider | World Health Organization (WHO)-Global Index Medicus |
|---|---|
| Author | Lam, Elizabeth J. Cánovas, M. Rivero, D. Faz, A. Gálvez, M. E. Montofré, I. L. |
| Description | Country affiliation: Chile Author Affiliation: Lam EJ ( Chemical Engineering Department, Universidad Católica del Norte, Antofagasta, Chile. elam@ucn.cl.); Gálvez ME ( Chemical Engineering Department, Universidad Católica del Norte, Antofagasta, Chile.); Cánovas M ( Metallurgical and Mining Engineering Department, Universidad Católica del Norte, Avda. Angamos 0610, Antofagasta, Chile.); Montofré IL ( Chemical Engineering Department, Universidad Católica del Norte, Antofagasta, Chile.); Rivero D ( Chemical Engineering Department, Universidad Católica del Norte, Antofagasta, Chile.); Faz A ( Agrarian Science and Technology Department, Universidad Politécnica de Cartagena, Paseo Alfonso XIII 48, 30203, Cartagena, Spain.) |
| Abstract | This work shows the results obtained on a copper mine tailing in the Antofagasta Region, Chile. The tailing was classified as saline-sodic with high concentrations of metals, especially Cu and Fe, with pH 8.4. Our objectives were to (1) compare the physicochemical properties of the tailing with surrounding soils of the mine under study, and (2) evaluate the effect of two amendments $(CaCO_{3}$ and compost) and their mixtures on $Cu^{2+},$ Mn, Fe, Zn, $Mg^{2+},$ and $K^{+}$ and $Ca^{2+},$ $SO_{4}^{2−},$ $NO_{3}^{−},$ and $PO_{4}^{3−}$ leaching. The data obtained were submitted to variance and covariance analysis. The results from the comparison between both substrates showed that in general, the tailing presented greater content of metals. Regarding tailing leaching, pH, electrical conductivity (EC), and concentration of the elements of interest were measured. The statistical analysis showed that $Cu^{2+}$ leaching and immobilization of Fe occurred to the greatest extent with compost. The EC decreased throughout the experiment with irrigation and increased upon treatment with compost. The major interactions found among the chemical parameters were (1) tailings without treatment, $Cu^{2+}/Fe$ and $NO_{3}^{−}/SO_{4}^{2−};$ (2) tailings treated with $CaCO_{3},$ $Cu^{2+}/K^{+};$ (3) tailings treated with compost, $NO_{3}^{−}/SO_{4}^{−2}$ and $EC/Cu^{2+};$ and (4) tailings treated with both amendments, EC/Fe and $Cu^{2+}/Fe.$ The ANOVA showed that the number of irrigations and the amendments statistically significantly affected the copper mobility and the organic amendment significantly influenced the iron mobility. |
| ISSN | 09441344 |
| Issue Number | 12 |
| Journal | Environmental Science and Pollution Research |
| Volume Number | 23 |
| e-ISSN | 16147499 |
| Language | English |
| Publisher | Springer |
| Publisher Date | 2016-06-01 |
| Publisher Place | Germany |
| Access Restriction | One Nation One Subscription (ONOS) |
| Subject Keyword | Discipline Environmental Science Discipline Environmental Chemistry |
| Content Type | Text |
| Resource Type | Article |
| Subject | Environmental Chemistry Health, Toxicology and Mutagenesis Pollution Medicine |
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