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Underground Mining Water Challenge

Underground mines face unique water management challenges including groundwater inflow, acid mine drainage, and water quality issues at depth. Effective dewatering and treatment are essential for safe operations, regulatory compliance, and sustainable water use.

Mine Dewatering

Continuous groundwater inflow must be pumped from multiple mine levels to maintain dry working conditions and prevent flooding of shafts and workings.

Acid Mine Drainage

Exposure of sulphide minerals to air and water generates acidic drainage with elevated metals requiring neutralisation and treatment before discharge.

High Temperature

Deep mine water often has elevated temperatures and may contain dissolved gases, requiring specialised handling and cooling before treatment.

Water Reuse

Treated mine water can be reused for dust suppression, drilling, and process applications reducing freshwater consumption and discharge volumes.

Underground Mining Applications

Shaft Dewatering

High-lift pumping systems for removing water from deep shafts with multi-stage pumping and treatment at surface facilities.

Level Sump Systems

Sump pumping and collection systems at each mine level to intercept groundwater and convey to main shaft for hoisting.

Acid Drainage Treatment

Active and passive treatment systems for acidic mine water including limestone drains, wetlands, and chemical conditioning and treatment plants.

Dust Suppression

Treated mine water reuse for roadway dust suppression, drill water, and other underground applications.

Development Water

Management and treatment of water from development headings and exploration drifts including drilling fluids and cuttings.

Discharge Compliance

Treatment to meet discharge permit requirements for pH, suspended solids, and metals before environmental release.

5-Step Underground Mine Water Treatment Process

1

Collection

Sump pumping systems collect mine water from multiple levels for conveyance to surface treatment facilities.

2

Screening

Coarse screening removes debris, rock fragments, and rubbish from mine water before treatment.

3

pH Correction

Neutralisation of acidic mine water using limestone or chemical dosing to achieve pH 6-9 for discharge or reuse.

4

Solids Removal

Clarification removes precipitated metals and suspended solids from neutralised mine water.

5

Reuse/Discharge

Treated water is reused for dust suppression and process applications or discharged under environmental permit.

Recommended Equipment

Mine Screens

Robust screening for removing debris and rock fragments from high-solids mine water before treatment.

Debris Removal

Grit Separators

Remove abrasive sand and gravel to protect pumps and treatment equipment from premature wear.

Equipment Protection

LAMELLA Separator

High-rate clarification for metals precipitation and suspended solids removal from mine water.

Metals Removal

Chemical Dosing

Automated pH adjustment and coagulant dosing for consistent neutralisation and metals precipitation.

Automated Control

Sludge Dewatering

Mechanical dewatering of metal-laden sludge for secure disposal or metals recovery.

Volume Reduction

Containerised Plants

Mobile treatment systems for remote mine sites and temporary underground operations.

Rapid Deployment

Key Benefits & Efficiency Gains

Maintain safe, dry working conditions
Treat acid mine drainage effectively
Meet discharge permit requirements
Reuse water for dust suppression
Reduce freshwater consumption
Protect surface water quality
Robust design for harsh conditions
Automated operation reduces labour

Related Mining Applications

Site Dewatering

High-capacity dewatering solutions for mining operations.

Explore Mining Dewatering

Environmental Compliance

Meet discharge requirements for mining operations.

Explore Mining Environmental

Open Pit Operations

Water management for surface mining operations.

Explore Mining Open Pit

Metal Ore Processing

Water treatment for base and precious metal mining.

Explore Mining Metal Ore

Related Pages

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Acid mine drainage treatment systems for mining operations.

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Treat aggregate wash water for sand, gravel and quarry operations.

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Mining Coal Preparation

Coal preparation plant water treatment: coal fines recovery, closed-loop water systems, pyritic sulphur removal, DAF flotation.

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Mining Coal

Coal mine wastewater treatment including acid mine drainage, tailings water and coal fines recovery.

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Mining Copper

Copper mining water treatment for dissolved copper, molybdenum, flotation reagents, TSS and electro-winning bleed.

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Optimise Your Underground Mine Water Management

Contact our experts for customised solutions for your mining operation.

Industries We Serve

Our expertise spans multiple industries with sector-specific water treatment solutions.