Engineered Oxygen Generation Systems for Water & Wastewater Infrastructure

AirSep VPSA Plants designed by EHL Group Across Australia & New Zealand

As an authorised AirSep distributor for Oceania, EHL Group provides advanced Vacuum Pressure Swing Adsorption (VPSA) and oxygen generation systems purpose-designed for water and wastewater treatment across Australia and New Zealand. These systems offer secure, efficient, and fully automated oxygen supply that supports biological treatment, odour management, and oxidation processes without reliance on delivered gas.

Advanced Oxygen Generation for Wastewater Treatment

AirSep VPSA systems, supplied, integrated, and supported by EHL Group, are engineered to deliver oxygen directly where it’s needed — enhancing microbial growth and pollutant breakdown in biological treatment zones, as well as preventing odour formation in sewer networks or lagoons.

These systems are ideally suited to processes such as UNOX and OASIS wastewater treatment, where pure oxygen improves decomposition performance and plant efficiency. Each VPSA plant is scalable, capable of serving small decentralised treatment lagoons through to large metropolitan wastewater facilities.

Technical Superiority: Precision, Reliability, and Ease of Control

AirSep’s VPSA technology separates oxygen directly from the atmosphere, producing 93% purity oxygen with exceptionally low energy consumption and online efficiency exceeding 99%.

Each plant integrates a fully automated control system designed in accordance with both Australian / New Zealand (AS/NZS) and international standards (IEC / ISO).

Key system features:

User-friendly SCADA integration: Real-time graphical display of operating data with trend analysis and diagnostics.
Data logging at 250 ms intervals: Provides continuous visibility for process optimisation.
Remote monitoring and control: Multi-level secured access, web-enabled supervision, and automatic email alerts.
Automatic turndown: Intelligent process control that aligns oxygen flow with demand, minimising energy use.
Flexible configuration: Metric or imperial units and multi-language display options for regional or global projects.

VPSA plants are delivered as modular, skid-mounted systems, allowing rapid deployment and simplified site integration. Once installed, start-up is immediate — operators can begin oxygen production with a single touchscreen command.

Designed, Integrated, and Supported by EHL Group

EHL Group’s engineering and project delivery teams in Australia and New Zealand bring comprehensive experience across the full lifecycle of oxygen generation projects.

EHL capabilities include:

System specification and design alignment with process and site-specific parameters
Mechanical and electrical integration into new or existing plant infrastructure
Fabrication and assembly of skid or containerised systems for compact installation
Commissioning and operator training, ensuring correct start-up and process performance
Ongoing maintenance and remote monitoring through regional service support hubs

EHL’s understanding of wastewater process control and automation allows seamless integration of AirSep VPSA systems into existing aeration, ozonation, or odour mitigation processes—maximising value for plant engineers and asset managers.

Performance and Efficiency

Compared to traditional cryogenic systems, AirSep VPSA oxygen plants can offer:

Up to 40% lower energy consumption per unit of oxygen produced
Automated load matching for variable process conditions
Minimal maintenance requirements due to robust mechanical design and simplified operation
Long equipment life cycles supported by globally proven AirSep component reliability

These systems are ideal replacements for aging PSA or cryogenic units and are widely adopted as a cost-effective, safe, and reliable oxygen source for:

Biological wastewater treatment (UNOX, OASIS, and aerobic oxidation systems)
Ozone feed gas generation for advanced oxidation and water reuse processes
Odour control through direct oxygen injection into collection networks or tanks

For smaller or decentralised facilities, AirSep Topaz Series or Standard Oxygen Generators, also distributed by EHL Group, deliver compact and efficient oxygen supply solutions tailored to modest treatment volumes.

Proven Global Technology, Supported Locally

AirSep VPSA systems are in operation worldwide in municipal, industrial, and utility applications—demonstrating unmatched uptime, energy efficiency, and reliability. Through its partnership with EHL Group, AirSep’s technology is now fully supported across Australia, New Zealand, and the Pacific Islands, with local engineering and service expertise ensuring every system performs to specification from commissioning through to long-term operation.

Conclusion

For water and wastewater treatment engineers seeking greater energy efficiency, operational independence, and enhanced biological process control, EHL Group’s AirSep VPSA oxygen systems deliver proven performance backed by regional technical depth.

With integrated design, local fabrication, and end-to-end lifecycle support, EHL enables utilities and infrastructure operators across Oceania to achieve oxygen self-reliance — safely, efficiently, and sustainably.