Aeration is an important step in the process of water and wastewater treatment.

This process of adding air into wastewater allows aerobic biodegradation of the pollutant components. It is an integral part of most biological wastewater treatment systems. Unlike chemical treatment, biological treatment uses microorganisms that occur naturally in wastewater to degrade wastewater contaminants.

When is Aeration used?

  • Municipal and industrial wastewater treatment
  • Lagoon aeration
  • Fish Farm pond aeration
  • Lake aeration

Aeration Methods:

Fine bubble diffusers

Europelec & Aqua Turbo Systems fine bubble air diffusers are designed for aeration of activated sludge tanks in municipal and industrial wastewater treatment plants. Europelec & Aqua Turbo Systems air diffusers are designed to offer high oxygen transfer efficiency, low pressure drop and easy installation.

The Aquadisc a disc air diffusers

The Aquadisc 250-305 & 320 fine bubble disc diffusers are designed for aeration of activated sludge tanks and basins in municipal and industrial wastewater treatment plants. Equipped with an EPDM membrane that prevents water from entering the distribution pipework when the air is turned off. They can be used for retrofitting an existing installation or a new

Aquatube a tube air diffuser

The Aquatube 70 & 90 fine bubble diffusers are cylindrical in shape. It is covered with an EPDM membrane with evenly distributed micro-slots.

This product is quick to mount by means of a bracket. The aquatube can be used for both fixed and removable aeration systems.

Surface aerators

Surface aerators are available in both floating and fixed execution. Each of these aerators exists in high speed direct drive or low speed with gearbox execution.

Surface aeration, especially the high-speed aerators, have a high efficiency in real activated sludge conditions due to their favourable alpha factor, it is used mostly for the biological process of water purification and plant aeration.

This aeration system extracts water from the basin volume and utilizes air-water contact to transfer oxygen by means of a water spray on the surface. This is the ideal Aeration system for ponds and lakes.

Floating surface aerators:

Europelec’s Aquafen® is a high-speed floating aerator for aeration and mixing of industrial effluent and wastewater that prevents stagnation in lagoons.

Provides oxygen supply and distribution for wastewater treatment. Designed for simple installation and for location above the water surface without draining the lagoon.

With a high spec drive motor above ip56 for rigorous conditions

The AER-AS, is the high-speed direct drive surface aerator that can be used for small tanks to massive lagoons.

Floatable surface aerator generally consists of a top mounted electrical motor, which drives the unique AQUA TURBO® SCREWPELLER®. The electrical motor is mounted on a flange support, which at its turn is mounted on the stainless-steel float. A cone (possibly equipped with cross plates) is mounted below the float and enables an ideal flow into the volute and impeller.

This surface aerator is standard in floating execution but can also be designed as a fixed unit to be installed on a bridge or platform.

Low Speed surface aerators

Europelec’s TLF Aerator low speed surface aerator is used for mixing and aerating urban and industrial wastewater for various processes.

It can be supplied in a fixed bridge or floating design. The TLF Aerator is one of the most ecient aeration products on the marketplace with the ability to aerate most types of wastewater or industrial fluids.

The AER-GD is the low speed surface aerator. In standard execution, this unit is designed for fixed aerator mounting.

Low speed Surface Aerator for wastewater treatment generally consists of a heavy-duty Gearbox, driven by a top mounted Electrical Motor, fastened on a Mounting Plate, and an Impeller.

The low speed aerator can also be designed as a floating unit for installation in large lagoons or basins with fluctuating water level.

Submersible aerators:

Submersible aeration systems are mostly used for basins with a relatively small surface and higher water depth; it brings Air and oxygen on the bottom where it will improve the overall water quality.

As the bubbles rise, they carry the low oxygen water from the bottom towards the surface, where it mixes with the oxygen-rich surface water and atmosphere oxygen before sinking back to the bottom. The continuous vertical mixing helps to increase dissolved oxygen concentration throughout the entire waterbody.

Submersible bottom aerators:

The Aerospeed is a submersible degreasing aerator that produces micro-bubbles which in turn float the grease on the surface of the liquid.

Having a robust IP68 cast iron motor, epoxy coated and fitted with a temperature control sensor.

This self-contained, ready-to-use equipment with no accessories required is also designed for ease of use.

The AER-SB(/L), the high-speed, direct drive submersible bottom aerator that is ideal for deep tanks or tanks with a small surface.

This Submersible Fixed Bottom Aerator consists of a top mounted submersible electrical motor, which directly drives an impeller that is located inside a chamber with one air aspiration opening below, one liquid aspiration opening at the top, and a number of air/liquid diffusion channels.

The submersible AER-GS is a low speed submersible bottom aerator that consists of a heavy-duty submersible gearbox with a top mounted submersible electrical motor. This gearbox is mounted on a support structure that allows the unit to stand on the floor.

The AER-GS can also be designed with long shaft driving the impeller and the Geared motor installed on a bridge or platform.

The AER-SL submersible Aerator is a high-speed direct drive submersible aerator that is generally installed on a guide rail on the side of the basin. The AER-SL creates a directional Flow and.

It consists of a submersible Motor, which drives the unique AQUA TURBO® SCREWPELLER® that is partially located inside a Vacuum Chamber. It is generally mounted on a Sledge, which can slide along a Vertical Guiding Post and be positioned on the desired immersion depth and has an Air Inlet Pipe with a length that fits with the immersion depth of the unit.


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