OCS-OZW 250

A dual-tank (2×125 L) industrial fruit and vegetable washing system that measures dissolved ozone concentration in ppm via a venturi + static mixer, managed through PLC control.

The OCS-OZW 250 is a dual-tank (2×125 L, 250 L total) ozone-assisted washing system designed for industrial fruit and vegetable washing lines. It does not lead with the amount of ozone gas produced (g/h), but with the actual dissolved ozone concentration (ppm) in the wash water — since this is what determines disinfection and residue-reduction performance.

A venturi injector combined with a static mixer increases the gas-liquid contact area, improving transfer efficiency. An online dissolved ozone sensor and PLC control panel keep the target ppm value stable throughout the process. For higher capacity, oxygen-fed operation and dual ozone measurement, see our OCS-OZW 250 PRO model.

Note: Under appropriate process conditions, ozone contributes to the reduction of certain pesticide residues; the removal rate varies depending on the pesticide's chemical structure, ozone concentration, and contact time.

  • 2 × 125 L Tanks: Independent circulation pump for each tank.
  • Venturi + Static Mixer: High gas-liquid contact efficiency.
  • Online Dissolved Ozone Measurement (ppm): Monitors actual ozone concentration in the wash water.
  • PLC Control: Adjustable wash time and parameter management.
  • Coarse Filter + Bag Filter: Removes suspended solids and soil.
  • Catalytic Ozone Destructor: Off-gas is safely neutralised.
  • Ambient Ozone Sensor + Interlock: OHS-compliant safety system.
ParameterValue
Tanks2 × 125 L
Total volume250 L
Ozone production capacity5 g/h
Feed gasDry air
Gas-liquid contact methodVenturi + static mixer
Ozone measurementOnline dissolved ozone (ppm)
ControlPLC
Off-gas managementCatalytic ozone destructor
Body materialAISI 304 (316L optional)
FiltrationCoarse filter + bag filter

Note: The target dissolved ozone concentration is determined based on product type and process validation; it is not provided as a universal guaranteed value.

catalog

1. Which products can the system be used for?
It can be used for lettuce, leafy vegetables, tomatoes, peppers, apples, citrus, and other fruit/vegetable groups.

2. Why is ppm measurement emphasised over g/h?
The amount of ozone the generator produces (g/h) is an input parameter; what determines disinfection performance is the amount of ozone actually dissolved in the water (ppm). The OCS-OZW 250 measures this value online.

3. Does the system completely remove pesticide residues?
No. Under appropriate process conditions, ozone contributes to the reduction of certain pesticide residues; the removal rate depends on the pesticide's structure and ozonation conditions.

4. What is the difference from the OCS-OZW 250 PRO?
The PRO model offers an oxygen-fed generator, a catalytic off-gas destructor, dual ozone measurement in both liquid and ambient air, and full PLC automation.