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pH correction with lime milk

PH correction with lime milk

1. Why correct pH?

pH is a fundamental parameter in water treatment, influencing physico-chemical reactions, metal solubility, disinfection and network stability.

Water that is too acidic is aggressive for pipes, while water that is too basic can lead to deposits and disrupt subsequent treatment stages.

pH correction with milk of lime (Ca(OH)₂) is an effective, sustainable and economical solution for achieving optimum pH levels in both drinking water and wastewater.

2. Why use lime milk? 

  • Powerful natural alkaline reagent
  • Allows rapid, controlled pH rise
  • Stabilizes water alkalinity
  • Low operating costs
  • Compatible with discharge or potability standards

3. Fields of application

  • Drinking water treatment plants
  • Wastewater treatment plants (WWTP)
  • Industrial effluents (chemicals, food processing, etc.)
  • Acidic process waste to be neutralized
  • Acid dewatered sludge requiring stabilization

 

4. Sodimate solutions for pH correction

Sodimate offers complete lime dosing and solution systems for reliable, automated pH control:

 

5. Schematic diagram 

Schematic diagram

 

6. Advantages of the Sodimate solution

  • High mechanical reliability (no clogging)
  • The Sodimate mechanical silo arch breaker eliminates silo bridging
  • Adjustable dosage according to target pH
  • Robust, low-maintenance material
  • Compatible with all types of process
  • Optimized injection reduces reagent consumption
Lime storage silo
Mechanical bin activator and lime milk preparation under silo skirt
Lime milk pump skid
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