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Ronald MonsalveMining Market Analyst
Chilean Copper Commission
Water for the future –Chile´s approach
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
Where is located?
Most mining in Chile is concentrated to the Norte Grande region.
Where is located?
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)
67%
Concentration
15%
Mine +
Services
14%
Hydrometallurgical
Process
4%
Smelting &
Refining
Source: Cochilco.
Water consumption by process 2017
Water consumption rates
Concentration
Hydrometallurgical
Process
Source: Cochilco.
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)
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.
2018 2019 2020 2021 2022 2023 2024 2025 2026 2027 2028 2029
Expected water consumption by origin(m3/seg)
230% Seawaterincreaseby 2029
Source: Cochilco.
Expected water consumption by region (m3/sec)
Source: Cochilco.
It represents
52% Chilean Copper
Production
Water consumption in copper mining, by status of environmental permits (EIA) (m3/sec)
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.
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.
• Importance of pretreatment
• Need for public-private coordination
• Mantain high environmental standards
• Consider social impacts
Seawater Supply must consider
• Energy-Water nexus
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
