UV Photocatalytic Oxidation Equipment

UV Photocatalytic Oxidation Equipment(also known as UV Photo-Oxidation Equipment or UV PCO Air Purifiers)is a type of advanced oxidation technology(AOP)device,primarily used for industrial waste gas purification,odor control,and air/water disinfection.It efficiently decomposes volatile organic compounds(VOCs),odors,bacteria,and viruses by combining ultraviolet(UV)light and photocatalysts.

Core Working Principle

The equipment operates on three synergistic mechanisms:

High-Energy UV Photolysis

Special dual-wavelength UV lamps(185nm&254nm)emit high-energy ultraviolet light.

This light directly cracks the molecular bonds of organic pollutants and odor-causing molecules(e.g.,benzene,toluene,hydrogen sulfide,ammonia),breaking them into smaller fragments.

The 185nm UV light also splits oxygen molecules(O₂)in the air to form ozone(O₃),a powerful oxidizing agent.

Photocatalytic Oxidation(PCO)

The UV light irradiates a photocatalyst(typically titanium dioxide,TiO₂)coated on a porous plate or mesh.

This excitation generates electron-hole pairs on the catalyst surface,which react with water vapor and oxygen to produce highly reactive hydroxyl radicals(·OH)and superoxide ions(·O₂⁻).

These free radicals non-selectively oxidize the pollutant fragments,completely mineralizing them into harmless CO₂and H₂O.

Ozone Synergy

Ozone generated by the UV light works in tandem with the photocatalytic process to enhance the oxidation and disinfection effect,ensuring thorough deodorization and sterilization.

Main Components

UV Lamp Module:Specialized low-pressure mercury lamps or UV-LEDs providing 185nm/254nm light.

Photocatalyst Module:Plates coated with nano-TiO₂catalyst.

Reaction Chamber:A sealed stainless-steel cavity where the photochemical reaction occurs.

Pretreatment Filter:A primary filter to remove large dust particles,protecting the lamps and catalyst.

Control System:Manages operation,lamp status,and safety features.

Key Advantages

High Efficiency:Effectively decomposes 90%-90%of VOCs and odors.

Broad Spectrum:Treats a wide range of organic compounds,bacteria,viruses,and fungi.

Low Operating Cost:Only consumes electricity;no need for chemical reagents,minimal maintenance.

Environmental Friendly:The final products are only CO₂and H₂O,no secondary pollution.

Compact&Stable:Small footprint,can run continuously 24/7.

Typical Applications

Industrial Waste Gas Treatment:Printing,painting,plastics,pharmaceuticals,chemical,and rubber industries.

Odor Control:Sewage treatment plants,waste transfer stations,slaughterhouses,and food processing plants.

Air Purification:Removing VOCs and odors in commercial kitchens,hospitals,and indoor environments.

Water Treatment:Degrading refractory organic pollutants in industrial wastewater.

Technical Specifications(Common)

UV Lamp Power:150W per tube

Wavelength:185nm(ozone-generating)+254nm(germicidal)

Lamp Lifespan:≥13,000 hours

Material:Stainless Steel(SS304/SS201)

Air Volume:1,000–100,000 m³/h(customizable)

Voltage:220V/380V,50/60Hz