Ozone Systems

ozone-systems

Mit Water supplies ozone generation and dosing systems for water and wastewater oxidation and disinfection. Ozone (O3) is one of the most powerful oxidising agents available for water treatment, with an oxidation potential of 2.07 V. It reacts rapidly with organic compounds, microorganisms, iron, manganese and colour-causing substances, decomposing back to oxygen without leaving persistent chemical residuals.

Working Principle

Ozone is generated on-site by passing dry, oxygen-rich feed gas through a corona discharge cell where a high-voltage electric field splits oxygen molecules into atomic oxygen that recombines to form ozone. The ozone-enriched gas is then injected into the water stream through venturi injectors or fine-bubble diffusers in a contact tank.

System Components

A complete ozone system includes an ozone generator, oxygen concentrator or liquid oxygen supply, ozone contact tank, venturi injection system, off-gas destruct unit, ambient ozone detector, and a PLC-based control panel. All wetted materials are ozone-resistant and the system is skid-mounted and factory-tested before delivery.

Ozone systems serve multiple roles across water and wastewater treatment:

  • Drinking water disinfection and taste/odour control
  • Bottled water and beverage production sanitisation
  • Industrial wastewater COD and colour reduction
  • Pharmaceutical ultrapure water system sanitisation
  • Aquaculture and fish farming water treatment
  • Swimming pool water treatment (reduced chlorine demand)
  • Cooling tower biocide treatment

Technical Parameters

Ozone Output5 to 5,000 g/h per generator
Ozone Concentration2 to 12 wt% (oxygen feed); 1 to 3 wt% (air feed)
Feed GasCompressed air or oxygen (PSA concentrator or liquid oxygen)
Cooling MethodAir-cooled or water-cooled
Contact Time4 to 15 minutes (application dependent)
Power Supply380V / 50Hz / 3-phase
Off-gas TreatmentThermal or catalytic ozone destructor
Control SystemPLC with HMI, ozone concentration and ambient monitoring