Abstract
One of the main problems for storing of the tailings is acidity occurrence due to several factors such as existence of sulfuric minerals and also the pollution in seepage waters by mobilization of metal ions, which holds great risks in terms of environmental regulations. Because of these specified reasons, tailing materials to be used in a SPD formula should have comply with some specifications. Among these properties; oxygen content, temperature, matrix suction and pH are the most important parameters. In the study, the relationships between the parameters mentioned are investigated to reveal optimum paste design layout. The lowest amount of seepage water obtained from the paste layers in the pilot cabinet was found as 2150 ml from 3th layer. As for the maximum seepage water and the average of the all 11 layers were found as 4909 ml from 6th layer and 3273 ml respectively. The reactions occurring according to the oxidation, as seen at seepage water of second and third layers, decreased the pH of system to the under of 7 value. Additionally, when the seepage water of first layer's EC value is 2.93 mS/cm, the EC value of second layer is increased at 3.54 mS/cm. The other parameters are evaluated with the obtained results of the tests to determine the optimum storing conditions for SPD.
Original language | English |
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Title of host publication | 2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining |
Subtitle of host publication | Navigating the Global Waters |
Publisher | Society for Mining, Metallurgy and Exploration |
Pages | 94-98 |
Number of pages | 5 |
ISBN (Electronic) | 9781510801240 |
Publication status | Published - 2015 |
Externally published | Yes |
Event | 2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters - Denver, United States Duration: 15 Feb 2015 → 18 Feb 2015 |
Publication series
Name | 2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters |
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Conference
Conference | 2015 SME Annual Conference and Expo and CMA 117th National Western Mining Conference - Mining: Navigating the Global Waters |
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Country/Territory | United States |
City | Denver |
Period | 15/02/15 → 18/02/15 |
Bibliographical note
Publisher Copyright:Copyright © 2015 by SME.
Keywords
- Environmental risk
- Seepage water
- Surface paste disposal (SPD)
- Tailing-waste management