Lime is one of the most widely used chemicals in drinking water treatment, industrial water purification, and wastewater treatment.
The water industry specifically uses high-purity hydrated lime to remove impurities, neutralize acidity, and improve overall water quality.
It is safe, effective, widely available, and approved for use in water treatment plants.
Keywords covered: water purification lime, lime for water treatment, hydrated lime in water softening, Ca(OH)₂ water purification, water treatment chemicals.
The lime used in water purification is:
Used for:
When hydrated lime is added to water:
Finally, filtered water becomes safe for drinking or industrial use.
| Lime Type | Scientific Name | Used in Water? | Purpose |
|---|---|---|---|
| Hydrated Lime (Correct) | Ca(OH)₂ | ✔ Yes | pH adjustment, softening, impurity removal |
| Quick Lime | CaO | ✔ Limited | Used only in large plants (converted to Ca(OH)₂ on-site) |
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High-Calcium Hydrated Lime (Ca(OH)₂).
To increase pH, remove impurities, and soften water.
Yes — when it is high-purity, water-treatment-grade lime.
Only in large plants where it is converted into hydrated lime on-site.
Indirectly — by creating a pH environment that reduces bacterial growth.
Municipal water plants, textile, dairy, sugar, chemicals, steel, pharma, food processing.
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