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sea water transfer to the biggest iron and copper mines in south east of Iran

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this Presentation is about transferring seawater to mine

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sea water transfer to the biggest iron and copper mines in south east of Iran

  1. 1. Ali mehri:Provider Mozaffari.Assistant professor:Dr October 2015 1
  2. 2. content  Introduction  water quality in mine industry  Problems arise from using untreated water  Water properties of Persian Gulf  The necessity of desalination  The current stage of the project  Advantages  disadvantages 2
  3. 3. Introduction  The dependence of mining industry to water  Iran's position in terms of strategic mineral resources  Water consumption 3
  4. 4. The most important Iron ore mine 4
  5. 5. The most important Iron ore mine 5
  6. 6. The most important Copper ore mine 6
  7. 7. The most important Copper ore mine 7
  8. 8. water quality in mine industry  Fresh/raw water Raw water used in mining industry is the natural water like rainwater, groundwater and water from bodies like lakes and rivers.  Treated water Treated water is water that has been made safe for reuse. Raw water may be chemically polluted during the processing. Therefore, it needs treatment before reuse. Treated water is very much valuable for mining industry. 8
  9. 9. The water cycle in a plant Fresh water mineral processing plant Waste water recycling Treated water 9
  10. 10. Water quality Comparison Parameters Untreated water Fresh/raw water PH 4 – 9.9 6.1 – 8.5 Turbidity TDS 42 – 13900 51 – 13900 Hardness 22 – 2480 46 – 1640 Ca+2 6.1 – 539 13 – 509 Mg+2 1.6 – 125 3 – 80 So4- 2.8 – 2440 2.8 – 1700 Cl- 3.2 – 338 2.7 – 196 F- 0 – 2.5 0 – 2.5 Na+ 1.1 – 248 1.1 – 177 10
  11. 11. Problems arise from using untreated water  In general, water quality criteria for ore flotation are not critical. Practically any water that is free of acid, mud, or slimes, may be used.  The water used in the leaching process is similar to flotation water. 11
  12. 12. Water properties of Persian Gulf 12
  13. 13. The necessity of desalination  Copper smelters are usually located where better quality water is available than that used for mining, flotation, or leaching.  Considerable boiler-feed water, preferably of good quality, is needed to utilize the waste heat that is a byproduct of copper smelting.  Some distilled or zeolite treated water is used for washing cathodes. 13
  14. 14. The current stage of the project In the stage of designing :  Length of path 760 km transmitting of about 110 million cubic meters water per year 14
  15. 15. The demand of water in mining industry water supply planed for the participating companies 15
  16. 16. The stages of the project  THE FIRST PHASE  from Bandar Abbas Desalination Plant to Gol Gohar Mineral Complex in Sirjan  1600 mm nominal diameter steel pipeline  nominal pressure from 16 to 40 bars  include seven pump stations with a total power of 125MW  total height of approximately 2400 16
  17. 17. The stages of the project  THE SECOND PHASE  within Golgohar to Sarcheshmah copper mine  1300 mm diameter steel pipeline  nominal pipe pressure varies from 16 to 40 bars  consists of four pump stations with a total power of 50 MW  height of 1,400 meters 17
  18. 18. The stages of the project  THE THIRD PHASE  within Sarcheshmah Copper Mines to Steel Industrial Zone and Chadormalu Mining Industry  Water is pumped by 1300 and 900 mm diameter steel pipeline  nominal pipe pressure varies from 16 to 40 bars 18
  19. 19. The early stage of phase 1 19
  20. 20. The project’s finance Total Project Cost Description Value (million dollar) Costs of first part 4000 Costs of second part 1285.7 Cost of third part 1257.1 Total costs of the project 6542.8 20
  21. 21. Advantages Supplying the water of iron and copper mines 21
  22. 22. Advantages Water used for drinking water of 50 cities and 200 villages Seawater desalination in Bandar Abbas 22
  23. 23. disadvantages  What issues will follow seawater Consumption? 1. Fish and other marine organisms are killed on the intake screens 2. organisms small enough to pass through, such as plankton, fish eggs, and larvae, are killed during processing of the salt water 3. the disposal of the highly concentrated salt brine that contains other chemicals used throughout the process. 4. Energy consumption is very high , so it causes to produce greenhouse gases. 5. Damage the ecosystem and biodiversity 23
  24. 24. Thank you for your attention 24

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