Sustainable Water Management for the

Mining Industry

Veolia Water Solutions & Technologies (VWS), a subsidiary of Veolia Water, is a leading global water and wastewater treatment technology company. We provide a full range of services including engineering, project management, design-build and maintenance services as well as long-term operation.Through a worldwide network of business units, VWS is active in all major mining countries and, thanks to the strong links between our business units, we are able to resolve all water issues that our mining customers face.

VWS Mining Centers

Chicago - USA: +1 815 609 2000 Dayton - USA: +1 937 890 4075 Johannesburg - South Africa: +27 11 663 3600 Los Angeles - USA: +1 714 986 5300 Pittsburgh - USA: +1 412 809 6000 Sydney - Australia: +61 2 8572 0400 Toronto - Canada: +1 905 286 4846

mining@veoliawater.com www.vwsmining.com

VWS Regional Offices

Buenos Aires - Argentina: +54 11 4302 7181 Kraków - Poland: +48 (12) 42 33 866 Mexico City - Mexico: +52 (55) 5366 6300 Ext. 103 Santiago - Chile: +56 2 361 7300 São Paulo - Brazil: +55 11 3888 8800 Shanghai - China: +86 21 6391 3288

A world of experience in the mining industry> BARRICK GOLD PERU

Auto-Jet® system Gold cyanide leach solution treatment

> POTOMAC COAL West Virginia, USA

Dense Sludge™ technology 10,000 gpm AMD treatment system Design, procurement and construction services

> STILLWATER MINING COMPANY Montana, USA

AnoxKaldnes™ Moving Bed Biofilm Reactor (MBBR) 121 gpm Design-Build system Ammonia and nitrates removal

> GOLDCORP Red Lake Mine Ontario, CANADA

Actiflo® - 30,000 m3/d Arsenic abatement from tailings pond discharge

> BENDIGO MINING New Moon Gold Mine, AUSTRALIA

Actiflo® and Reverse Osmosis Treatment of underground mine water Treated mine water suitable for irrigation, environmental flows and other community uses Capacity: 7,000 m3/d

> SASOL EDR Brine SOUTH AFRICA

Desalination and reuse of mine water Design, supply, installation and commissioning of crystallizers and of the largest FC evaporator in Africa Capacity: 3,240 m3/d EDR brine feed Evaporation capacity: 134 tonnes/h

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PYROMETALLURGY

HYDROMETALLURGY

Pregnant ponds

H2SO4

SX plant(solvent extraction) EW plant

(electrowinning)

Open-pit mine

Undergroundmine

•Infiltration•Rain, snow•Run-off

ore

Crushing&

Grinding

EXTRACTION

MANUFACTURING

FrothFlotation

Leaching(heap, in-situ,tank)

Treatment

MINE DRAINAGEFor active or closed mines

Treatment

Rain

Treatment

Safe discharge intothe environment

Reuse

Wastewater

Process Water

Wastewater

TAILINGS PONDS

Brackish orsea water

Groundwater

Safe discharge intothe environment

Desalinationplant

Metal Recovery& Water Reuse

Treatment

Leachfiltration

AMDRO™, latest patented process Acid Mine Drainage recovery system Produces high quality water with reduced pre-treatment costs

Actiflo® Clarification Contaminated water treatment High turbidity water treatment for process use Compact, high-rate wastewater clarification process

Membrane filtration (Micro-, ultra- and nano-filtration, Reverse Osmosis (RO))

Dense Sludge™ process maximizes sludge density to minimize sludge production

Ion Exchange Production of ultra-pure water for process requirements Removal of particular ions, heavy metals or recovery of valuable metals

PICAGOLD: A unique technology for high recovery of precious metals such as gold, due to Activated Carbon.

Veolia Water Solutions & Technologies (VWS) specializes in potable water, process water and wastewater treatment solutions for all types of mining sites (such as gold, copper, nickel, uranium, coal, potash).

Discfilters produce effluent with low turbidity and low suspended solids Hydrex™ water treatment chemicals Membrane protection Sanitary safety Ultra low level metals removal AnoxKaldnes™ MBBR Pre-treatment of overloaded activated sludge Suitable for high BOD / COD wastewaters Nitrification / De-nitrification & biological cyanide removal Evaporation and Crystallization for Zero Liquid Discharge, liquid waste reduction, recovery of condensate from spent liquors Skids & Containerized Systems: Mobile RO and microfiltration units for production of potable water Auto-Jet® premium self-cleaning pressure leaf filter Mobile Services for temporary or emergency water needs: Aquamove™

For all applications, VWS offers solutions that treat and efficiently remove all contaminants(heavy metals, arsenic, suspended solids, organics, iron, manganese, specific ions): Tailings pond water reuse Zero Liquid Discharge (ZLD) Gold / Silver cyanide solution treatment Merrill Crowe clarification filters Treatment of contaminated pit and underground mine water Groundwater reclamation Mine Pool Control / Dewatering & Treatment Reuse of mine water for irrigation Heavy Metals removal Metal recovery Nitrification / De-nitrification Brackish and sea water desalination Effluent treatment Sulfate reduction Potable water and sanitary systems (mining camp)

> Meeting your Needs

> Specialized expertise

To improve productivity by treating water for production process requirements To manage environmental risks by treating contaminated water to achieve water quality suitable for reuse or for safe discharge into the environment To add value to the bottom line by treating sludge streams to recover suspended and dissolved constituents To secure high quality drinking water, even at remote mining sites To have robust and reliable equipment requiring no unplanned maintenance To cope with production peaks while complying with stringent regulations To guarantee long-term efficiency and costs through operations services

> Our Solutions: a large portfolio of proven technologies

Dedicated experts at your service

Applications forthe Mining Industry

We provide specialized water systems, thanks to our understandingof the unique requirements of mine operations and our worldwide

expertise in mine water issues.Focusing on system performance, compliance with

process and environmental requirements and long-term cost-effectiveness, we are able to

meet the most demanding reliability, safety and quality standards of the mining industry.

Creating Water Solutionsfor the Mining Industry

Water treatment in the mining industry