Water for the future Chile´s approach Ingls/Water for...Forecasting the copper industry water...
Transcript of Water for the future Chile´s approach Ingls/Water for...Forecasting the copper industry water...
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Ronald MonsalveMining Market Analyst
Chilean Copper Commission
Water for the future –Chile´s approach
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EXPORTS
56% 2009 - 2018
Mining activities represents:
MINING SUPPLIERS
5.000
SKILLED WORKERS
214,000
FOREIGN INVESTMENT
18% 2005-2015
Chilean mining industry
MINING
10% of 2018 GDP
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Where is located?
Most mining in Chile is concentrated to the Norte Grande region.
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Where is located?
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12.38 12.72 12.95 13.07 13.61 13.26
0.98 1.29 1.71 2.27 2.45 3.16
34.29 32.14 31.71
40.3843.27
38.07
2012 2013 2014 2015 2016 2017
Aguas Continentales
Aguas de Mar
Aguas Recirculadas
Source: Cochilco.
Recirculated water
Continental water
Seawater
Water consumption at copper industry (m3/sec)
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67%
Concentration
15%
Mine +
Services
14%
Hydrometallurgical
Process
4%
Smelting &
Refining
Source: Cochilco.
Water consumption by process 2017
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Water consumption rates
Concentration
Hydrometallurgical
Process
Source: Cochilco.
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Forecasting the copper industry water demand
Key Variables
• Expected copper production forecast 2018-2029• Water consumption rates. (Continental water use per ton of processed ore)
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3.917
5.2396.193 6.241
1.586
1.566
0.991 0.821
0
1
2
3
4
5
6
7
8
2017 2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
Mill
ion
sto
ns
per
yea
r
Expected copper production
Source: Cochilco.
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2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
Expected water consumption by origin(m3/seg)
230% Seawaterincreaseby 2029
Source: Cochilco.
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Expected water consumption by region (m3/sec)
Source: Cochilco.
It represents
52% Chilean Copper
Production
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Water consumption in copper mining, by status of environmental permits (EIA) (m3/sec)
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The use of seawater in mining (m3/sec)
0,13 0.220.37
0.58
0.88 0.970.83
1.53
0.11
0.49
0.61
0.71
0.82
1.311.61
1.63
2010 2011 2012 2013 2014 2015 2016 2017
Source: Cochilco.
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Desalination plants and projects
Regarding future development, at least 8 newprojects are planned with the use of seawaterand 4 extensions of existing systems.
They are mostly located in the Antofagastaand Atacama regions.
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• Importance of pretreatment
• Need for public-private coordination
• Mantain high environmental standards
• Consider social impacts
Seawater Supply must consider
• Energy-Water nexus
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Long-term strategic challenges• Secure water for production• Reduce water consumption• Understand the link between water, energy and emissions
Analysis of the solutions in a regional context• Potential synergies that would reduce costs• Contributing solutions not only for mining
Final Remarks