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Cooling water quality at Plastima

Poor cooling water is a creeping problem. Solid particles and biological growth settle in heat exchangers, mould channels and pipework; heat transfer deteriorates, pumps have to work harder and energy consumption rises. In practice, poor cooling water quality is the reason behind higher operating and maintenance costs at many companies — and in some cases behind lost production.

Removing the cause is more effective than continuing to dose. For this Plastima supplies ONI-AquaClean technology, which filters the water in the circuit and keeps it biologically clean instead of treating it chemically over and over.

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ONI-AquaClean

ONI-AquaClean water treatment unit in a cooling circuit

AquaClean is a patented combination of filtration technology and ozonisation. After treatment, solid particles are no longer detectable and the biological contamination in the cooling water falls from around 100,000 colony-forming units per ml to roughly 100 CFU/ml — a reduction of 99.9%. The process water then meets the requirements set for drinking water. A further effect of the ozonisation is that dissolved metals oxidise and are captured out of the circuit.

Technical features:

  • Patented filtration technology combined with ozonisation
  • Solid particles no longer detectable after treatment
  • Biological load reduced from approx. 100,000 to approx. 100 CFU/ml (99.9% reduction)
  • Process water at drinking water quality
  • Oxidation and capture of dissolved metals
  • Can be applied in existing cooling circuits

What it delivers

AspectEffect of clean cooling water
Energy consumptionClean heat exchangers and pipework transfer heat better, so less pump and cooling capacity is needed
Process reliabilityNo blocked mould channels or temperature control circuits, so a more stable product temperature
MaintenanceLess cleaning, fewer replacements and less unplanned downtime on the cooling system
Service lifeLess corrosion and scaling in the circuit and components
ChemicalsLess reliance on dosing biocides and inhibitors

Request a system proposal →

ONI AquaClean brochure

ONI AquaClean
Cover of the ONI AquaClean brochure

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