Benefits of Aeration equipment for Conventional Aerobic Digester Systems

Truly Non-Clogging

Enviroquip’s MS and TransMAX® air diffusers are accepted by engineers and operators as truly non-clogging diffusers. Clogging is eliminated by separating the air metering orifice from the diffuser and locating the orifice above the liquid level in the basin. Thus, no liquids or solids are ever in contact with orifice restriction, the point at which other diffusers most frequently clog. Enviroquip was the first in the industry to provide this unique patented feature*.

Advantages of Enviroquip's above-water orifice:

• No solids contact with the orifice
• Airflow uninhibited through complete length of the pipe
• No moving parts
• No swivel joints required to service the orifice
• Full access to orifice system assembly above the water surface
• Non-clogging orifice eliminates need for redundant diffusers
• Ability to cycle air on and off without fouling or plugging the diffusers
• Blowers operate at the same discharge pressure over the life of the equipment, ensuring uniform air distribution

* PATENT #4,720,360

Deep Basin Aeration

Enviroquip uses shear tubes, draft tubes, and Multi-Educator Draft Tubes® *(MEDT) to efficiently and economically aerate deep basins of side water depths 20 to 50 feet. Diffusers are mounted within an open-ended cylindrical tube at a submergence of only 12-16 feet. The extender above and below the air discharge point operates as a submerged airlift pump. The result is exceptional mixing and improved oxygen transfer at a reduced horsepower requirement.

Advantages of deep basin aeration using Enviroquip’s shear and draft tubes systems:

• Economically converts anaerobic digesters and Imholf tanks to aerobic digesters
• Reduces land usage
• Smaller surface area reduces heat loss in cold weather, and is less expensive to cover
• Reduces blower discharge pressure, 8 psig or less with many systems

*Patent # 5,779,890

Exceptional Mixing

The Enviroquip systems can be used to achieve exceptional mixing in all wastewater applications. Even polymer-thickened sludges are mixed by our shear and draft tube systems by accelerating the sludge to 4 to 6 fps velocity.

Advantages of exceptional mixing:

• Lengthens contact time between air and liquid resulting in a higher alpha value.
• Breaks polymer bonds to reduce viscosity and facilitate sludge handling operations.
• Enables sludges with concentrations of up to 8% to be handled in holding basins and aerobic digesters.
• Reduces odor problems caused by accumulations of settled solids.
• Eliminates dead zones.

Zero In-Basin Maintenance

Advantages of Enviroquip’s diffuser systems:

• A truly non-clogging diffuser
  • No replacement of units
  • No swivel joints
  • No gas cleaning
• Fabricated from ABS plastic, a non-corrosive and UV resistant material, and stainless steel drop pipes
• A maintenance free aeration system
  • No lubrication
  • No icing and spray in cold climates
  • No parts replacement due to mechanical wear