Increase oxygen transfer. Reduce blower energy. Optimize the biological process.

Hydra-Fusion™ combines high-efficiency fine-bubble aeration with Hydra-Bubble™ hydraulic mixing to create a fully integrated process solution that independently optimizes oxygen transfer and basin mixing.

Unlike conventional aeration systems that must simultaneously provide oxygen and circulation, Hydra-Fusion allows each process to do exactly what it was designed to do.

The result is improved process control, lower operating costs, more uniform basin conditions, and increased treatment performance.

In field applications, Hydra-Fusion has demonstrated:

• 20–30% improvement in oxygen transfer efficiency
• Improved dissolved oxygen distribution 
• Continuous solids suspension 
• Reduced dead zones and short-circuiting 
• Lower blower energy usage by eliminating unnecessary airflow for mixing 
• Greater process stability during changing operating conditions 

Most treatment plants increase blower airflow whenever additional mixing is required; even if oxygen demand is not needed.

That means operators often spend energy moving water when the objective is not to add oxygen.

Hydra-Fusion changes that.

Fine-bubble diffusers remain dedicated to maximizing oxygen transfer, while Hydra-Bubble™ provides powerful hydraulic circulation using low-pressure macro bubbles. This allows mixing to be achieved far more efficiently than increasing aeration airflow alone.

Based on comparative hydraulic performance, Hydra-Bubble delivers approximately 9.3× greater hydraulic mixing effectiveness than fine-bubble diffusers, allowing equivalent mixing with up to 89% less energy than increasing blower capacity solely to achieve basin circulation.

Each system can operate independently or together, enabling operators to precisely match energy consumption to actual process requirements.

Rather than forcing one system to perform two separate functions, Hydra-Fusion optimizes oxygen transfer and hydraulic mixing independently, maximizing process performance while minimizing operating costs.

Hydra-Bubble generates large-scale hydraulic circulation using low-pressure, large-volume macro bubbles. These bubbles rapidly rise through the basin, moving tremendous volumes of water while contributing minimal oxygen transfer.

Fine-bubble diffusers remain focused on what they do best; efficient oxygen transfer.

Together, the two technologies work in synergy:

• Oxygen-rich water is continuously redistributed throughout the basin rather than just rising to the surface. 
• Dead zones are minimized. 
• Dissolved oxygen remains more uniform. 
• Biomass stays suspended. 
• Oxygen is delivered where microorganisms need it most. 

The result is a more stable biological process with improved treatment efficiency and greater operational flexibility.

If desired, ENG Designs can provide complete engineered Hydra-Fusion systems, including:

• Fine-bubble diffuser systems 
• Aeration piping and header networks 
• Blower systems 
• Hydra-Bubble mixing equipment 
• Process instrumentation 
• PLC and SCADA integration 
• Electrical controls 
• Startup and commissioning support 

Whether you need a complete turnkey solution or specialized engineering support, ENG Designs partners with your team from concept through commissioning to ensure the system is optimized for performance, reliability, and long-term success. 

Hydra-Fusion is ideal for:

• Activated sludge basins 
• Sequencing Batch Reactors (SBRs) 
• Equalization basins 
• Aerobic digesters 
• Lagoons 
• Oxidation ditches 
• Industrial wastewater treatment 
• Food and beverage processing 
• Municipal wastewater treatment 

Hydra-Fusion™ gives treatment facilities the freedom to independently optimize hydraulic mixing and oxygen transfer while benefiting from a fully integrated, engineered process solution designed specifically for their plant.