Last Updated: August 2026 | Reading Time: 10 minutes
Market Overview
South Africa’s mining sector (gold, coal, platinum) faces significant water treatment challenges, particularly acid mine drainage (AMD) in Witwatersrand and Mpumalanga coal fields. Tailings dewatering and heavy metal removal are critical.
Key Wastewater Challenges
| Parameter | Typical | Discharge Limit |
|---|---|---|
| COD | 500-5,000 mg/L | < 300 mg/L |
| TSS | 200-2,000 mg/L | < 50 mg/L |
| pH | 4-10 | 6-9 |
Recommended Treatment Chemicals
| Chemical | Role | Dosage | Removal |
|---|---|---|---|
| APAM | Flocculant | 20-100 g/t | TSS 95%+ |
| PFS | Coagulant | 30-200 mg/L | 40-60% COD |
| Activated Carbon | Adsorbent | CIP gold recovery | Gold 99%+ |
Treatment Process Flow
- Equalization & pH adjustment
- Coagulation (PAC + PAM)
- Sedimentation/DAF
- Biological treatment
- Polishing & disinfection
- Sludge dewatering
Regulatory Compliance
South Africa: DWS standards, AMD pH 6-9, heavy metals < 0.5 mg/L
Why Source from HydroChemix
- Factory-direct pricing with 30+ country export experience
- ISO 9001 quality with COA for every batch
- Free samples for jar testing
- 24-hour quote response
- Technical support and dosage optimization