Mechanical Aeration

Surface aerators, jet aeration, and floating diffuser systems for lagoons, oxidation ditches, and biological treatment basins.

What is Mechanical Aeration?

Mechanical aeration transfers oxygen through physical agitation at the water surface or through high-velocity liquid jets. Self-contained and well-suited for lagoons, oxidation ditches, equalization basins, and applications where fixed diffuser maintenance access is limited. Mechanical aeration systems eliminate the need for below-surface diffuser cleaning and replacement while providing effective oxygen transfer and basin mixing.

Equipment We Represent

AquaTurbo - AER-AS High-Speed Floating Surface Aerator

Patented SCREWPELLER two-flight Archimedes-style impeller draws low-oxygen sludge from basin depths up to 8 meters
Discharged as an oxygen-rich radial spray for effective surface aeration
100% stainless steel construction, 0.75 to 200 kW
Direct-drive IP56 motors for reliable outdoor operation
Applications: activated sludge, oxidation ditches, lagoons, SBR, MBR, and aerobic digestion

AquaTurbo - AER-GD Low-Speed Surface Aerator

Designed specifically for oxidation ditches and extended aeration systems
Gearbox-driven four-blade impeller operating at 42–55 RPM
Produces both aeration and strong horizontal flow for oxidation ditch circulation
Available for bridge or float mounting with variable speed control
Power range: 1.1 to 110 kW

Fluidyne - Jet Aeration and Jet Aspiration

Jet aeration pumps liquid through double-nozzle assemblies that aspirate air for high oxygen transfer
Provides off-bottom solids suspension alongside aeration in a single system
Ideal for SBRs, oxidation ditches, extended aeration, and BNR applications
Jet aspiration provides a simpler, cost-effective option for moderate aeration needs

Entex Technologies - Octopus Floating Aeration System

Stainless steel floating pod with eight legs carrying fine or coarse bubble diffusers (up to 32 diffusers per unit)
Air supplied from shore-based blowers — no motors in the water
Leg-by-leg maintenance via quick disconnects in approximately 5 minutes per leg
Approximately 50% of the energy cost of splash surface aerators
Applications: lagoons, SBRs, extended aeration, and aerobic digesters

Landia — AirJet Aeration

AirJet venturi-style jet aeration driven by Landia chopper pumps
Combines mixing and oxygen transfer for basins, lagoons, and digesters
No in-basin moving parts — pump and blower mounted externally for easy maintenance

Literature & Resources

AER_GD_FR.pdf (276 KB) - AquaTurbo AER-GD Low-Speed Surface Aerator
AER_SB_FR.pdf (3.1 MB) - AquaTurbo AER-AS High-Speed Floating Surface Aerator
FRED_FR.pdf (2.0 MB) - AquaTurbo FRED Series

Applications

Lagoons & Ponds
Surface aerators and floating diffuser systems for facultative and aerated lagoons

Oxidation Ditches
Low-speed aerators providing both oxygen transfer and horizontal circulation velocity

SBR / Extended Aeration
Flexible aeration systems for intermittent and extended aeration treatment modes

Aerobic Digestion
Maintaining aerobic conditions in open digestion basins

Why Winschel Environmental?

Four complementary technologies — High-speed surface, low-speed surface, jet, and floating diffuser — we match the right technology to your basin geometry and process needs
Energy efficiency focus — Entex Octopus at ~50% of surface aerator energy; AquaTurbo's depth-drawing impeller maximizes oxygen utilization
Minimal in-water maintenance — AquaTurbo's stainless steel construction and Entex's quick-connect legs minimize underwater service requirements
Virginia coverage — Local support for aerator selection, startup, and ongoing equipment service