Hurricane® Submersible Mixer
The Hurricane submersible aerator/mixer combines thorough and reliable wide-area aeration with unmatched ruggedness, quality, and serviceability.
The Hurricane submersible aerator/mixer’s 360-degree radial mixing system incorporates new, unique air diffusers for high oxygenating efficiency and thorough mixing over a wide area. The Hurricane offers unmatched ruggedness, quality, and serviceability.
Learn more about RWL Water’s full line of aerators and aeration equipment.
The Hurricane air diffuser’s updated design simplifies assembly with fewer parts, and increases performance life with only one moving mechanism. The system is totally self-contained for inexpensive installation and requires no additional pumps, mounting platforms, or compressors. Its unique self-aspirating design also eliminates the need for an external blower in most applications. Instead, the rotating impeller draws atmospheric air into the inlet piping, where it is combined and mixed with the water and expelled at high velocity.
Self-aspirating down to 24 feet below the surface, the Hurricane aerator delivers high oxygen transfer rates and considerable energy savings. The Hurricane operates at greater depths with blower assist. Specially designed impellers allow operation as either a mixer or an aerator/mixer simply by valving-off the air inlet pipe or by changing the water depth in the basin — perfect for sequence batch reactor applications.
Features of the Hurricane Submersible Aerator/Mixer
RWL Water manufactures the entire impeller and stator from one piece of 17-4 stainless steel hardened to Rockwell 45 HRC. This gives the non-fouling, high-efficiency impeller and stator greater abrasion resistance. Positioned within the stator, the impeller is balanced for minimal vibration and maximum chopping action to crush solids. The stator can be switched out without having to replace the entire aerator assembly, making upgrades simple.
With 14 model sizes ranging from 5 to 100 hp (3.75-75 kw), the Hurricane aerator/mixer fits multiple applications. You can also choose fixed or removable mounting options. The aerator base features large, extended legs for stable, wide-radius support. These adjustable legs make it easy to level the equipment on most basin floors, and their vibration-dampening feet help prevent “walking.”
In addition, the Hurricane aerator/mixer features:
- Corrosion- and UV-resistant stainless steel construction throughout
- Stainless steel air inlet piping
- Factory testing for quality assurance
- One moving part
- No additional pumps, mounting platforms, or compressors required
- 14 model sizes; tubes adapt to rectangular or circular basins and provide uniform air distribution for full-floor coverage
- Interchangeable components that allow you to change horsepower (kw) within specified ranges by simply changing the motor and impeller
- Unit allows operation as mixer or aerator/mixer simply by valving-off the air inlet pipe or by changing the water depth in the basin
- Customized air diffuser tubes for most efficient aeration mixing
- Adaptability for rectangular or circular basins
- Diffuser tubes adapt to rectangular or circular basins and provide uniform air distribution for full-floor coverage
How Does the Hurricane Aerator Work?
The Hurricane aerator is designed with a minimum of moving parts for reliable oxygen transfer and basin mixing. Deployed at the bottom of a tank or basin, the integrated submersible electric motor rotates a solid 17-4 stainless steel impeller to generate a low-pressure zone around the impeller blade tips.
The pressure differential created between this low-pressure zone at the bottom of the tank and the air at the wastewater’s surface forces air down a stainless steel inlet tube into the Hurricane aerator’s central stator assembly. The close tolerance of the impeller and stator assembly is used to macerate grit and other solids in the wastewater, making the Hurricane aerator ideal in environments high in solids.
In the stator, surface air and water are thoroughly mixed through the rotation of the impeller and the turbulence it creates. High oxygen transfer also occurs in the stator assembly due to the break-up of air into very small bubbles. The high surface area-to-volume ratio of these small bubbles promotes high oxygen transfer into the wastewater, which is further enhanced by the high distortion of bubble surfaces by the turbulence of the stator.
The oxygen-enriched combination of air and water is expelled at a high velocity from the central stator assembly through radial diffuser tubes to deliver oxygen throughout the basin floor. As the air bubbles rise from the bottom of the tank, further oxygen transfer takes place until the bubble release pattern in the tank thoroughly mixes the tank with intense agitation.
The completely submerged operation of the Hurricane aerator eliminates splashing, minimizes the generation of hazardous aerosols, and promotes stable biological treatment even in the coldest climates.
How Is the Hurricane Used?
The Hurricane aerator/mixer is ideal for applications including:
- Aerobic digesters
- Sludge holding tanks
- Activated sludge
- Flow equalization tanks
- Post aeration systems
- Sequencing batch reactors (SBR)
- Municipal wastewater treatment
- Wine and beverage manufacturing
- Dairy production
- Food and meat processing plants
Hurricane Submersible Aerator Case Studies
- Submersible Hurricane aerators replaced fixed-mounted, low-speed aerators in the aeration basin of the Jacksonville Naval Air Station Wastewater Treatment Plant, which treats flows up to 3 million gallons per day. Learn more about this case study.
- The 40 hp Hurricane aerator was chosen by the City of Murfreesboro, Tennessee, to be installed in a 19-foot-deep post-aeration basin. Learn more about this case study.