Water Filtration for Mining Water/Wastewater Treatment

1.Metal Ore Leachate Treatment (Gold/Copper Leachate)

Purpose: Remove suspended particles (<10 µm) and heavy metal ions (e.g., As, Hg) from cyanide leachate.

Products: Plate & Frame Filter Press: For filtration precision of 1–5 µm, made from polypropylene (corrosion-resistant, pH 2–12).

Activated Carbon Adsorption Tower: Adsorbs residual cyanide (adsorption rate ≥99%).

Simplified Process:

Leachate → Pre-sedimentation (pH adjustment) → Plate & Frame Filtration → Activated Carbon Adsorption → Reuse/Discharge.

Key Parameters:

Treatment capacity: 50–200 m³/h.

Cake moisture content: ≤18%.

2.Coal Washing Wastewater Treatment

Purpose: Separate coal slurry (>50 µm) and recover clean water (SS ≤50 mg/L).

Products:

Hydrocyclone: For coarse particle separation (>200 µm).

Belt Filter Press: For dewatering coal slurry (moisture content ≤25%).

Disc Filter: For fine filtration (10 µm precision).

Simplified Process:

Coal washing wastewater → Hydrocyclone → Sedimentation → Belt Filtration → Disc Filtration → Clean water recovery.

Industry Standard: Meets "Coal Industry Pollutant Discharge Standards" (GB 20426-2006).

3.Tailings Water Recycling

Purpose: Recover fine particles (<5 µm) and desalinate tailings water (TDS ≤500 ppm).

Products:

Ceramic Membrane Filter: Pore size of 0.1–0.5 µm, pressure tolerance up to 1.0 MPa (resistant to high turbidity shock).

Reverse Osmosis (RO) System: Desalination rate ≥98%.

Simplified Process:

Tailings water → Flocculation & Sedimentation → Ceramic Membrane Filtration → RO Desalination → Industrial reuse.

Energy Efficiency: Ceramic membrane flux ≥100 LMH (L/m²·h).

4.Flotation Reagent Purification

Purpose: Remove impurities such as oils and colloids from flotation agents.

Products:

Bag Filter: For primary filtration (25–100 µm).

Ultrafiltration (UF) System: For fine filtration (0.01 µm precision, 10 kDa molecular weight cutoff).

Simplified Process:

Flotation reagent → Bag Filtration → Ultrafiltration Purification → Storage → Flotation production line.

Advantages:

Reagent recovery rate ≥95%.

Reduces new reagent procurement costs by 30%.

5.Acid Mine Drainage (AMD) Treatment

Purpose: Neutralize acidic water (pH 2 → 7) and remove Fe/Mn heavy metals (concentration ≤0.1 ppm).

Products:

Limestone Neutralization Reactor: For pH adjustment (automated dosing system).

Deep Bed Filter: Multi-layer medium (quartz sand + manganese sand) for filtration.

Ion Exchange Resins: For heavy metal removal.

Simplified Process:

Acidic water → Neutralization → Deep Bed Filtration → Ion Exchange → Discharge (meets standards).

Compliance: Meets "Integrated Wastewater Discharge Standards" (GB 8978-1996).

Additional Mining Filtration Products and Applications

Clarification & Separation for Slurry Treatment:

Decanter Centrifuge: For separation of solids from slurries in mineral processing.

Pressure Leaf Filter: For clarifying and separating liquids from slurries, commonly used in concentrate filtration.

Dust and Airborne Contaminant Filtration:

 Electrostatic Precipitator (ESP): For removing fine dust and particulate matter from exhaust gases in mining operations.

Water Softening Systems for Mine Water Treatment:

 Water Softener Units: Used to remove calcium and magnesium ions to prevent scaling in equipment and improve water quality.