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Coal Mining Water Challenge

Coal mining operations generate significant volumes of water containing coal fines, rock particles, and potentially acidic drainage. Effective treatment enables coal recovery, water recycling, and compliance with environmental discharge requirements.

Coal Fines Recovery

Coal preparation plant tailings contain valuable coal fines that can be recovered using flotation and dewatering systems, adding output while reducing waste volumes.

Acid Mine Drainage

Exposure of sulphide minerals to air and water generates acidic drainage with elevated metals. Requires neutralisation, precipitation, and solids removal before discharge.

Wash Water Treatment

Coal washing and preparation generate water with high suspended solids. Clarification enables water reuse and reduces freshwater consumption.

Environmental Compliance

Discharge permits require treatment for suspended solids, pH, and potentially metals. Compliance systems protect receiving waters and maintain operating licenses.

Coal Mining Applications

Preparation Plants

Water treatment for coal washing, jigging, and heavy media separation circuits including fines recovery and thickener overflow clarification.

Tailings Thickening

High-rate thickening of fine coal refuse to recover water for reuse and produce high-density sludge for disposal or further dewatering.

Coal Fines Flotation

Dissolved air flotation for ultra-fine coal recovery from tailings streams, adding value while reducing waste volumes.

Acid Drainage Treatment

Passive and active treatment systems for acid mine drainage including limestone drains, wetlands, and chemical conditioning and treatment plants.

Underground Mine Water

Dewatering and treatment of mine water from underground operations including pH correction and solids removal.

Stormwater Runoff

Sediment control and treatment of stormwater from coal stockpiles, haul roads, and preparation plant areas.

5-Step Coal Water Treatment Process

1

Screening

Coarse screening removes large debris and protects downstream equipment from damage in high-solids coal water.

2

Grit Removal

Sand traps remove abrasive rock particles and grit that cause equipment wear in coal preparation water.

3

Clarification

LAMELLA separators achieve high-rate solids settling for tailings thickening and water recovery.

4

Fines Recovery

DAF flotation recovers fine coal particles from tailings, adding value and reducing waste.

5

Dewatering

Screw presses dewater recovered coal fines and thickened tailings for disposal or reuse.

Recommended Equipment

DAF Flotation

Dissolved air flotation for fine coal recovery from tailings streams, adding output while reducing waste volumes.

Resource Recovery

LAMELLA Separator

High-rate thickening for tailings clarification with 70% smaller footprint than conventional clarifiers.

Compact Design

Screw Press

Low-energy dewatering of recovered coal fines and tailings sludge for reduced disposal requirements.

Efficiency Improvement

Sand Traps

Remove abrasive grit and rock particles to protect pumps and downstream equipment from wear.

Equipment Protection

Self-Cleaning Filters

Final polishing filtration for clarified water before reuse or discharge with minimal maintenance.

Low Maintenance

Containerised Plants

Mobile treatment systems for temporary coal operations and remote mine sites with rapid deployment.

Rapid Deployment

Key Benefits & Efficiency Gains

Recover valuable coal fines for additional output
Reduce tailings disposal requirement by 60-70%
Recycle 80-90% of process water
Meet environmental discharge requirements
Treat acid mine drainage effectively
Compact footprint for limited site space
Low operating and maintenance requirements
Robust design for harsh coal environments

Related Mining Applications

Tailings Management

Efficient solid-liquid separation for tailings thickening and water recovery.

Explore Mining Tailings

Process Water Treatment

Clarification and filtration for coal preparation plant water circuits.

Explore Mining Process Water

Site Dewatering

High-capacity dewatering for open pit and underground coal mines.

Explore Mining Dewatering

Environmental Compliance

Meet discharge requirements for coal mining operations.

Explore Mining Environmental

Related Pages

Mining Acid Mine Drainage

Acid mine drainage treatment systems for mining operations.

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Mining Aggregate Quarry

Aggregate & quarry water treatment systems for wash water, storm events, settlement ponds and recycled concrete aggregate.

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Mining Aggregate

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 Copper

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

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Mining Cyanide Management

Cyanide detoxification systems for gold processing wastewater.

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Optimise Your Coal Mine Water Treatment

Contact our experts for customised solutions for your coal mining operation.

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