Calcium Carbonate
Environmental Solutions
Natural mineral chemistry for water treatment, flue gas cleaning, and soil restoration.
Calcium carbonate is nature's own neutralising agent. As an alkaline mineral it corrects acidity safely and economically — in drinking water remineralisation, in flue gas desulphurisation, in acid mine drainage treatment, and in agricultural soil conditioning.
For a mining economy like South Africa's, environmental mineral solutions are not a niche — they are infrastructure. Omya Idwala supplies high-purity grades with the consistency that municipal, industrial, and agricultural users depend on.
Where our environmental solutions grades work
Water Treatment
High-purity grades for drinking water remineralisation and pH correction. Safe handling, controlled dissolution, NSF-aligned purity standards.
Flue Gas Desulphurisation
Reactive limestone sorbents for wet and semi-dry FGD systems in power generation and industrial boilers. Consistent reactivity, reliable supply.
Acid Mine Drainage
Neutralising agents for treating acidic mine-impacted water — a critical application across the Witwatersrand basin and coal belts.
Agriculture & Soil
Agricultural lime for soil pH correction and calcium nutrition. Improved nutrient availability, better fertiliser efficiency, higher yields.
- CaCO₃ content
- ≥ 98.5%
- Particle size (d50)
- 3 – 800 µm
- Reactivity (t₉₀)
- Application-matched
- Heavy metals
- Certified low
- Supply format
- Bulk tanker / big bag / 25 kg
- Acid neutralising value
- ≥ 97% CCE
Grade-specific technical data sheets available on request.
Related industries
Formulating with environmental solutions?
Our technical team will match the right grade to your process window.