Plasma Oxidizer

Roxia Plasma Oxidizer™ is an effective non-thermal plasma technology for industrial water purification.
  • Effective plasma oxidation
  • Low energy consumption
  • Fully automatic
  • Low maintenance
  • Chemical-free

Powerful Water Purification Technology

Roxia Plasma Oxidizer™ is an effective non-thermal plasma technology for industrial water purification. Plasma generated oxidants effectively remove colour, odour and organic residues while disinfecting the water. Roxia Plasma Oxidizer (RPO) is the superb water purification system alternative to ozone, UV and chemical treatment.

Roxia Plasma Oxidizer is a superb alternative to ozone, UV and chemical water treatment.

Roxia Plasma Oxidizer Replaces Treatment Chemicals With Plasma

Roxia Plasma Oxidizer (RPO) is unique industrial water treatment technology as it uses non-thermal plasma in direct contact with water to destroy dissolved organic pollutants. Purified water can now be a result of completely chemical-free process. RPO is considered to be the paradigm shift in oxidative water treatment and industrial water purification. It eliminates the need for transportation, storage and handling of risky disinfection chemicals, thereby mitigating costs and environmental risks. Roxia Plasma Oxidizer is safer, more economical and environmentally friendlier solution.

Roxia Plasma Oxidizer is a superb alternative to ozone, UV and chemical water treatment.

What can Roxia Plasma Oxidizer do?

Disinfect water

Destroy organic pollutants

Remove colour and odour

Prevent membrane fouling

Purify plant cooling and process waters

Remove pharmaceutical residues

How does Roxia Plasma Oxidizer work?

Treated water runs through non-thermal plasma field

This creates strong oxidants from the treated water and surrounding air

The oxidants then destroy pollutants and disinfect the water with a lasting effect

Roxia Plasma Oxidizer (RPO) turns direct plasma oxidation into an industrial product.

Roxia Plasma Oxidizer is also suitable for other operations and processes. Want to know more?

Fill in the contact form and Roxia wastewater treatment professionals will advise you.

Gained value from RPO against conventional systems

Ozone systems

Your value from RPO:

  • Lower energy consumption
  • More powerful oxidation for the money

UV systems

Your value from RPO:

  • Robust design: only stainless steel is in contact with the water, no moving parts -> low maintenance
  • Insensitive towards turbidity
  • No UV lamps

Chemical treatment

Your value from RPO:

  • No chemical logistics, storage and use
  • No chlorinated byproducts
  • Only electricity is used
  • Reduced safety protocols

ProjectsScaling up the Roxia Plasma Oxidizer

The project objective is to design a 10-kW Roxia plasma Oxidizer (RPO). This serves to fill a technological gap on organics control in ZLD targets within mining water management, where the technology has been proven extremely efficient.

This activity was funded by the Start-up & SME Booster Programme from the EIT RawMaterials, funded by the EIT, a body of the European Union supported under the Horizon 2020 research and innovation program.

Water protection programme stamp. The City of Lappeenranta and the Centre for Economic Development, Transport and Environment.

ProjectsCleaner hospital wastewaters

Roxia Plasma Oxidizer™ aims to destroy 90-99 % pharmaceutical residues from the hospital wastewaters. With this installation, Roxia is the trailblazer on a global scale as this will be the first-of-a-kind on the planet!

The system will degrade pharmaceuticals before the hospital sewage enters the public sewer network and the concentrations are diluted. Installation to the local Central Hospital in Lappeenranta, Finland, was funded by the City of Lappeenranta and the Centre for Economic Development, Transport and Environment.

More information:

Interested in brochures, datasheets and articles?

ArticlePlasma Oxidizer Water Treatment Technology

Roxia Plasma Oxidizer™ (RPO) utilizes non-thermal plasma for water treatment. The system contains electrode stacks that generate special types of electric discharges to create an ambient-temperature plasma field inside a reactor.

Technical data

Roxia Plasma Oxidizer 3kW

Net weight ~1100 kg
Gross weight ~1800 kg
Volumetric capacity 65 m3/h
Input power ~6 kW
Nominal plasma power 3 kW
Voltage / frequency 400 V / 50 Hz 3 phase, other standards available
Water inlet R4” male thread
Water outlet R6” male thread
Water inlet R2” male thread
Gas outlet 1/2”
Gas inlet (optional O2 generator) 1/2”
Min. & max. ambient temp 1 °C to 30 °C
Min. & max. water temp. 1 °C to 35 °C
Inputs 24 V DC for remote operation
Outputs 230 VAC relays indicating system operation and alarms
Materials in contact with water AISI 316, PE

Let’s talk and find the best solution for your business!

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Contact us

If you have something on your mind, just let us know! We are more than happy to answer all your inquiries.


Kauko Tanninen

President Central Asia

+7 708 102 24 66

Sergey Petukhov

Technical Director Central Asia

+7 916 213 21 76

Retha Schoeman

Sales Engineer Sub Saharan Africa and South Africa

+27 83 825 6805

Dan Stenglein

Sales Director North America

+1 667 500-2591

Sebastian Alcaino

Regional Sales Director South and Central America


Ronald Gaspar

Area Sales Manager South and Central America

+51 9 7973 5424

Sun Lin

Area Sales Manager, General Manager China

+86 21 52679628

Roope Kupias

Customer Support Manager, Finland

+358 40 860 4720

Dirk Otto

Sales Director, Central Europe

+49 (0) 2102 420 707

Thorsten Zogalla

Area Sales Manager SFP Filters, Central Europe

+49 7307 92170 116

Klaus Göde

Service Engineer, Central Europe

+49 (0) 162 408 88 58

Kimmo Angeria

Head of Field Services, Industrial Automation

+358 400 104 977

Ian Mayhew

Filter Spares Sales and Service Manager North America

+1 667 668 0006

Markus Saloniemi

Director, Industrial Automation

+358 40 571 9520

Goran Metiljevic

Product Manager, Powerflo Solutions

+61 2 8005 2131

Petteri Taavitsainen

Sales Director, Scandinavia, Baltics, Turkey, Middle East, India, Japan, Australia & Oceania