Calcium deposit reduction on recycled water pipelines
A calcium deposit reduction was needed at a Czech concrete plant, where recycled water with a high lime content was clogging pipes and valves. The water ran through DN80 pipelines at 70 litres every four minutes, continuously during production. Build-up was affecting the mass scale that dosed the mix, so accuracy was drifting, and frequent cleaning and shutdowns were needed. Three HydroFLOW® i130 units were fitted to the recycled water pipelines. Calcium deposits fell by 75%, encrustation in the pipes and valves was cut, and dosing accuracy improved. Cleaning and shutdowns became less frequent.
The Challenges
- A calcium deposit reduction was needed with deposits clogging pipes and valves
- The recycled water had a high lime content
- Build-up was affecting the accuracy of the mass scale
- Dosing accuracy was drifting as encrustation grew
- Frequent cleaning and shutdowns were required
The Solution
- Units installed: three HydroFLOW® i130
- Installation point: recycled water pipelines
- Pipe size: DN80
- Water: recycled, high lime content, 70 litres every four minutes
The three units were fitted directly to the DN80 recycled water pipelines, on the loop the plant runs continuously during production. The signal disrupts the conditions that bond calcium to surfaces, cutting encrustation in pipes and valves and improving dosing accuracy. The calcium deposit reduction was measured at 75%.




