Optimal site selection for heap leaching structures by the analytic hierarchy process (case study: Taft heap leaching structure, Iran)
1
Department of mining engineering, University of Kashan, Iran
2
Department of mining engineering, Tehran University, Iran
Gospodarka Surowcami Mineralnymi – Mineral Resources Management 2013;29(1):109-125
KEYWORDS
ABSTRACT
In hydrometallurgical projects, the heap location greatly affects construction costs and environmental hazards. Heap leach pad site selection depends on different technical parameters (topographical, borrow sources, hydrological, hydro-geological, etc.) and other financial and environmental factors. In many situations, there are some proposed sites with different parameters, and it is necessary that the optimum heap leach pad site be selected with the help of multi-criteria decision making methods such as ELECTRE, TOPSIS, and AHP. In this paper, we have first studied the heap leach pad site selection criteria (technical, financial, and environmental) and their effects on the selection of the location of the heap leaching structures. Then, using the AHP method, the decision making problem was hierarchically structured at three levels. For analysis, use was made of the “Expert Choice” software. To check the practicality of the method, an appropriate site for the construction of the leaching heap was selected at the Taft area, Yazd province, Iran. Finally, sensitivity analysis exploring the overall priority of alternatives to changes in the relative synthesis value of each criterion was carried out for the main technical, economic, and environmental criteria.
METADATA IN OTHER LANGUAGES:
Polish
Optymalny wybór lokalizacji struktur ługowania hałdy za pomocą analizy hierarchicznej (studium przypadku: hałda (składowisko) Taft, Iran)
wymywanie hałdy, kryterium oceny, optymalne miejsce, AHP
Lokalizacja składowiska odpadów z procesów hydrometalurgicznych ma bardzo duży wpływ na koszty jego budowy i ryzyka związane ze środowiskiem. Wybór miejsc ługowania hałdy zależy od różnych parametrów technicznych (topograficznych, hydrologicznych, hydrogeologicznych i innych) oraz od uwarunkowań ekonomicznych i ekologicznych. W wielu przypadkach wybór optymalnych miejsc ługowania hałdy dokonywany jest z uwzględnieniem szeregu kryteriów za pomocą metod ELECTRE, TOPSIS i AHP. W artykule, w pierwszej kolejności określono kryteria do lokalizacji miejsc ługowania (o charakterze technicznym, finansowym i środowiskowym) i zbadano ich wpływ na wybór lokalizacji miejsc ługowania. Następnie korzystając z metody AHP problem decyzyjny rozpatrywano na trzech poziomach, wykorzystując oprogramowanie „Expert Choice”. W celu sprawdzenia metody wybrano hałdę w okolicy Taft, prowincji Yazd w Iranie. Analiza wrażliwości, która bada reakcję całego przedsięwzięcia została przeprowadzona dla głównych kryteriów technicznych, ekonomicznych i środowiskowych.
REFERENCES (16)
1.
Expert Choice, 2000 – Quick start guide & tutorials: User’s manual, PA: Expert Choice Inc., Pittsburgh.
2.
Giroud et el. 2001 – Giroud J.P., Zorenberg J.G., Zhao A., 2001 – Hydraulic design of geosynthetic and granular liquid collection layers. Geosynthetics International, pp. 285–380.
3.
Hosseinali F., Alesheikh A.A., 2008 –Weighting spatial information in GIS for copper mining exploration, American Journal of Applied Sciences, Vol. 5, pp. 1187–1198.
4.
Kampf et el. 2002 – Kampf S.K., Salazar M., Tylor S.W., 2002 – Preliminary investigation of effluent drainage from mining heap leach facilities. Vadose Zone Journal, Vol. 1, pp. 186–196.
5.
Karimi Nasab et al. 2007 – Karimi Nasab S., Hojat A., Mollaei Fard M.R., 2007 – Technical Factors for Selecting Optimum Heap Leach Pad Sites. Engineering & Mining Journal, Vol. 208, pp. 54–59.
6.
Lee et al. 2008 – Lee A.H.I., Chen W.C., Chang C.J., 2008 – A fuzzy AHP and BSC approach for evaluating performance of IT department in the manufacturing industry in Taiwan. Expert Systems with Applications, Vol. 34, pp. 96–107.
7.
Mahmoodzadeh et al. 2007 – Mahmoodzadeh S., Shahrabi J., Pariazar M., 2007 – Project selection byusing fuzzy AHP and TOPSIS technique. International Journal of Human and Social Sciences, Vol. 30, pp. 333–338.
8.
Majdi et al. 2007 – Majdi A., Amini M., Karimi-Nasab S., 2007 – Adequate drainage system design for heap leaching structures. Journal of Hazardous Material, pp. 288–296.
9.
Majdi et al. 2009 – Majdi A., Amini M., Amini Chermahini A., 2009 – An investigation on mechanism of acid drain in heap leaching structures. Journal of Hazardous Material, Vol. 165. 1098–1108.
10.
Peniwati K., 2007 – Criteria for evaluating group decision making methods. Mathematical and Computer Modelling, Vol. 46, pp. 935–947.
11.
Saaty T.L., Luis V., 1991 – Prediction, projection and forecasting. s. l. Kluwer Academic Publishers. p. 251.
12.
Saaty T.L., 1980 – The analytic hierarchy process: Planning, priority setting, resource allocation. New York: McGraw-Hill.
13.
Saaty T.L., 1990 – How to mark a decision: the analytic hierarchy process. European Journal of Operational Research, Vol. 48, pp. 9–26.
14.
Saaty T.L., 2000 – The Fundamentals of Decision Making and Priority Theory with the Analytic Hierarchy Process. s. l, RWS Publication. p. 478.
15.
Smith M.E., Zhao A., 2004 – Drainage net for improved service and cost reduction in heap leaching. GRF Engineering Solution Magazine, pp. 1–8.
16.
Thiel R.T., Smith M.E., 2004 – State of the practice review of heap leach pad design issues. Geotextiles and Geomembranes, Vol. 22, pp. 555–568.
| eISSN: | 2299-2324 |
| ISSN: | 0860-0953 |
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