sea water transfer to the biggest iron and copper mines in south east of iran
TRANSCRIPT
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SUBJECT
THE PROVISION OF SEA WATER TO THE BIGGEST IRON AND COPPER MINES IN SOUTH EAST OF IRAN
Ali mehri:ProviderMozaffari.Assistant professor:Dr
October 2015
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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
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Introduction
The dependence of mining industry to water
Iran's position in terms of strategic mineral resources
Water consumption
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The most important Iron ore mine
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The most important Iron ore mine
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The most important Copper ore mine
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The most important Copper ore mine
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water quality in mine industry
Fresh/raw waterRaw water used in mining industry is the natural water like rainwater,
groundwater and water from bodies like lakes and rivers.
Treated waterTreated 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.
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The water cycle in a plant
Fresh watermineral
processing plant
Waste water recycling
Treated water
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Water quality Comparison
Parameters Untreated water Fresh/raw waterPH 4 – 9.9 6.1 – 8.5
TurbidityTDS 42 – 13900 51 – 13900
Hardness 22 – 2480 46 – 1640Ca+2 6.1 – 539 13 – 509Mg+2 1.6 – 125 3 – 80So4- 2.8 – 2440 2.8 – 1700Cl- 3.2 – 338 2.7 – 196F- 0 – 2.5 0 – 2.5
Na+ 1.1 – 248 1.1 – 177
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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.
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Water properties of Persian Gulf
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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.
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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
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The demand of water in mining industry
water supply planed for the participating companies
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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
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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
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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
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The early stage of phase 1
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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
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Advantages
Supplying the
water of iron
and copper
mines
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Advantages
Water used for
drinking water of
50 cities and 200
villages
Seawater desalination in Bandar Abbas
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disadvantages
What issues will follow seawater Consumption?1. Fish and other marine organisms are killed on the intake screens2. organisms small enough to pass through, such as plankton, fish
eggs, and larvae, are killed during processing of the salt water3. 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
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Thank you for your attention