Wassertec: Pioneering Ozone Technology in South Africa and Beyond

Founded in Cape Town in 2002, Wassertec has grown into a leading specialist in ozone generation systems for both water and air treatment across Southern Africa.

Over the years, the company has invested in in‑house design, manufacturing, and stringent quality control to deliver reliable ozone systems tailored to industrial, commercial, and light domestic applications.

What Is Ozone & Why Use It?

Ozone (O₃), a molecule composed of three oxygen atoms, is a powerful oxidant and disinfectant. Because it is inherently unstable, it must be generated on site and used immediately.

Ozone offers several advantages in water and air treatment, including:

• Rapid microbial inactivation, including bacteria, viruses, algae, and protozoa
• No chemical residue or added contaminants (after reaction, ozone reverts to oxygen)
• Effective oxidation of metals (e.g. iron, manganese) and organics, as well as removal of taste, odor, and color
• No need for chemical dosing (chlorine, etc.) in many cases

However, ozone also has limitations and safety considerations:

• It is toxic to breathe at elevated concentrations, so systems must include ozone‑leak detection and exhaust destruction components.
• It does not provide a residual disinfectant effect in distribution systems (unlike chlorine), so in many water applications some post‑treatment (e.g. chlorination) may still be required
• Some organic byproducts (aldehydes, ketones, carboxylic acids) can form, depending on water quality
• Ozone is relatively insoluble in water, so effective mixing and contact design are critical
• Proper system design—including gas feed preparation, ozone contactors, off‑gas destruction, and monitoring—is essential to safe, efficient operation.

Wassertec Product Lines & Technologies

Wassertec offers a broad portfolio of ozone solutions suited to different scales and applications, including:

Bright Blue / Bright Blue CCS (Commercial / Bottling)

The Bright Blue line is designed for high-demand industrial applications, especially in the bottled water, beverage, dairy, and wine bottling industries.

The Bright Blue CCS system is a fully automated ozone treatment solution built to Coca-Cola specifications, offering remote control, safety features, and robust control logic.

These systems typically aim for defined ozone contact times and residual ozone levels (e.g. 0.5 ppm residual after a few minutes) to achieve high log reductions in microbial load.

Indigo & Azure (Domestic / Light Commercial)

For smaller or continuous water treatment applications, Wassertec offers the Indigo and Azure ozone generators.

Azure is built for domestic and light commercial use, with modular ozone modules (1, 2, 4 modules) and durable materials suited for indoor or sheltered outdoor installation.

Depending on feed gas (ambient air, dry air, or oxygen), the ozone output scales (e.g. up to ~7 g/h using 95 % oxygen).

Combined systems include pumps, venturi injectors, ozone‑resistant components (stainless steel, Teflon, sintered alumina), and control interfaces.

UVO (Air / Odour Treatment)

For air and odour sanitization, Wassertec offers the UVO (Ultra Violet Ozone) generators.

These are intended for indoor environments to eliminate odors, airborne pathogens, and chemical residues:

Available in portable, wall‑mounted, or commercial formats (e.g. 200 mg/hr up to 1000 mg/hr)
wassertec-ozone.com

UV‑based ozone generation is better suited for air treatment compared to corona discharge which is more efficient for water treatment

Applications include hotel rooms, cold storage, smoking areas, hospitality settings, and other enclosed spaces where odor removal is required

Oxygen Generation & Supporting Systems

Since ozone is generated from oxygen (or ambient air), Wassertec also developed their own OX5 oxygen generator, launched in 2005.

The OX5 can deliver ~5 L/min of high-purity oxygen (> 93 %) from compressed air using molecular sieves, supporting higher ozone yields in ozone systems.

This integration ensures that Wassertec’s ozone systems are optimized end to end—from oxygen feed to ozone generation to delivery and safety systems.

Applications & Use Cases

Wassertec’s ozone technology supports a broad range of applications:

• Bottled water and beverage bottling: Disinfection of water and bottle surfaces, ensuring microbiological control in packaged products.
• Dairy & wine bottling: Ensuring sterility of containers and process water to maintain product quality and shelf life.
• Domestic & light commercial water disinfection: Ozone systems for tanks, rainwater, or mains water in homes, lodges, small businesses.
• Odour and air sanitisation: Indoor air disinfection in hospitality, hotels, smoking rooms, cold storage, and other enclosed areas using UVO systems.
• Rainwater harvesting & green systems: Circulating ozone in water storage systems (e.g. JoJo tanks) for disinfection.

Quality, Safety & Support

Wassertec places strong emphasis on modular design, component availability, and safety.

Our “Any Given Day” rule ensures that critical parts are stocked in South Africa to reduce downtime.

All industrial systems incorporate ambient ozone leak detectors, automated shutdowns, and exhaust destruction modules to prevent operator exposure hazards.

When properly maintained, many systems can deliver 20+ years of useful service.

Conclusion

Wassertec stands out in the ozone equipment space through our integrated engineering, manufacturing capability, and end‑to‑end focus on safety, performance, and reliability. From large‑scale bottling plants to domestic water treatment and air sanitation, our versatile product lines (Bright Blue, Indigo, Azure, UVO) address real needs in water quality, hygiene, and odour control.

For companies or individuals seeking ozone-based solutions with local support, spare parts availability, and custom configurations in Southern Africa, Wassertec presents a compelling and proven option.

 

Click here for more information – Wassertec – Specialists in ozone systems and ozone technology.