Air Jammer System
Areas of Use:
Lift Stations • Preaeration Systems • Aeration Basins • Effluent Aeration Cells
FOG Flotation Units • Aerobic Sludge Digesters • Lagoons • Replace Diffused Air
How circulation increases oxygen transfer:
- Oxygen depletion normally occurs at the bottom of the water. By deep circulating and bringing the oxygen depleted water from the bottom to the surface, the normal oxygen transfer can take place. If the circulation pattern is deep enough, the oxygenrich water is drawn back down to the bottom where it is most needed.
- EPA manuals for waste pond operation show that through pond circulation the oxygen producing zone can be drawn down from a typical 6 – 18 inches to about 4 feet, thereby increasing direct oxygen production by over 2.5 times.
- Typical surface scum and algae matting stops wave action and blocks photosynthesis. Circulation reduces surface encrustation and matting, thereby increasing oxygen transfer.
Air Jammer® systems have several advantages over other aeration systems:
- The Air Jammer® has an excellent oxygen transfer to water/wastewater. As water is pumped through the Air Jammer unit, at specified rates and pressure, a vacuum is created at the air induction ports on each side of the unit. The vacuum created is equal to approximately twice the atmospheric pressure that water and people are subjected to, 28 PSI. This pressure forces the atmospheric oxygen into the water. Once this occurs the oxygen can only be removed from the water by biological uptake from the waste stream or boiling of the water. As wastewater is pumped through the unit, organics that are in the waste stream are sheared into macroscopic size and thoroughly mixed with the oxygenated water. This shearing of organics into smaller particles allows bacteria to digest them easier.
- The oxygen transfer stated above for Air Jammer® units is equal to:
Model M-2 15 pounds per hour
Model M-3 27 pounds per hour
Model M-4 50 pounds per hour
Model M-6 101 pounds per hour
- The Air Jammer® system is a land-based system allowing ease of installation and increased safety for maintenance requirements.
- The Air Jammer® system pulling water or wastewater from the bottom or near bottom of a lagoon or tank gives mixing from bottom to top and circulation in clockwise or counterclockwise direction. This mixing and stirring greatly improves operation of any system and will stop temperature inversions and the odor problems caused by the changing of the seasons. The Air Jammer® will not create odors.
- The Air Jammer® will place more oxygen in the water for less electrical cost than any aeration system available today.
Comparison of Oxygen Transfer Capabilities by Aerator Types
|Transfer Rate Lbs. 02/Hp/HR|
|Venturi Air Jammer
Surface low-speed w/draft tube*
Surface downdraft turbine*
Submerged turbine w/sparger*
Submerged impeller (stirrer)*
Surface brush and blade*
|2.7 – 3.1
1.2 – 2.4
1.2 – 2.4
1.2 – 2.0
1.0 – 2.0
1.2 – 1.8
1.2 – 1.8
0.8 – 1.8
*Wastewater Engineering: Treatment, Disposal and Reuse, 3rd Edition.
Metcalf & Eddy, Inc. McGraw-Hill, NY, NY 1991
Surface aerators beat atmospheric oxygen into water that already has oxygen it it. Venturi aeration is configured to bring the most anoxic (oxygen-deficient) water into the venturi. This is where the venturi can achieve higher transfer rates of dissolved oxygen because there is less resistance at the air/liquid interface. Most aerators use the buoyancy transfer model for dissolved oxygen. The venturi (Air Jammer) uses the kinetic oxygen transfer model where in the liquid is converted into macro-droplets of water and is imploded with 2.2 volumes (twice the atmospheric pressure) of ambient air to one equivalent volume of liquid. Transfer takes place predominantly within the “mixing and oxidizing” zone of the Air Jammer.