Aeration systems increase the supply of oxygen, as well as providing mixing, in the biological treatment processes commonly used to treat municipal wastewater and industrial effluents. Read More

They are typically installed in mixing tanks, activated sludge tanks, equalisation basins, sequencing batch reactors (SBRs) and aerated lagoons.

Fine bubble aerators are installed on the floor of a treatment tank, usually in a grid format. Millions of air bubbles rise from the diffusers, sustaining the aerobic processes. Disc, tube, plate and dome are all types of fine bubble aerator.

Mechanical aerators use an impeller, brush or rotor to agitate the wastewater, increasing oxygen transfer from the atmosphere. They are usually fixed to a side wall or overhead bridge, but can also be installed as floating units.

With submerged models, air or oxygen is delivered through a hose to the aerator and distributed by the rotation of the impeller.

Aerating fountains destratify water in ponds and lakes, helping improve improve overall water quality. 

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Aerators - helping you find the best solution for your project.

  • ELIQUO HYDROK: Newham WwTW Nereda installation awarded to ELIQUO HYDROK
    Newham WwTW Nereda installation awarded to ELIQUO HYDROK
    ELIQUO HYDROK
    As a sub-contractor to Balfour Beatty, ELIQUO HYDROK has been awarded the installation of the internal pipework for the new Nereda® system for South West Water at the Newham WwTW works in Truro, Cornwall, which serves 27,000...
  • Corgin: Spiral aerators at a domestic wastewater treatment works
    Spiral aerators at a domestic wastewater treatment works
    Corgin
    In times of rising energy bills and global financial instability, energy savings are both welcome and needed. Plants that may have had acceptable energy costs at design stage 25 years ago are now finding a greater and...
  • Corgin: Rotex brush aerator for wastewater treatment
    Rotex brush aerator for wastewater treatment
    Corgin
    Rotex brush aerators are horizontal-shaft surface rotors used for oxygen transfer and directional mixing in wastewater treatment. Aerators are commonly custom-designed for installation in existing oxidation ditches or to...
  • ELIQUO HYDROK: Aquaconsult AEROSTRIP® fine bubble aeration diffusers
    Aquaconsult AEROSTRIP® fine bubble aeration diffusers
    ELIQUO HYDROK
    Aquaconsult AEROSTRIP® fine bubble diffusers are used for the aeration of effluent in wastewater treatment. The diffusers generate very fine bubbles for higher oxygen transfer in biological processes (3-5kg O2/kWh). This...
  • ARM Ltd: Forced Bed Aeration™ for wetland wastewater treatment
    Forced Bed Aeration™ for wetland wastewater treatment
    ARM Ltd
    Forced Bed Aeration™ (FBA™) is a technology designed to enhance the performance of wetlands for the treatment of high-strength wastewaters. The FBA™ system blows air through the wetland system. The increased presence of...
  • Corgin: Spiral aerators installed at a re-activated sludge plant
    Spiral aerators installed at a re-activated sludge plant
    Corgin
    Oxygen starvation was a frequent problem at a small wastewater treatment works run by a UK water company, especially when loads increased and temperatures rose in the summer tourist season. The existing two 18.5 kW venturi...
  • Corgin: Floating aerator hire for multiple Scottish Water sites
    Floating aerator hire for multiple Scottish Water sites
    Corgin
    Hot and dry weather can often pose a challenge to wastewater treatment works. Corgin received urgent calls from several remote treatment works in Scotland that were struggling to maintain consent levels due to lack of...
  • Corgin: Vertex surface aerator for dairy
    Vertex surface aerator for dairy
    Corgin
    A dairy in the south west of England was looking to upgrade to its wastewater treatment assets which were literally falling to bits. The customer’s selection process resulted in a contract to supply, install and the...
  • Corgin: FlexAir T-Series Tube Diffusers
    FlexAir T-Series Tube Diffusers
    Corgin
    FlexAir T-Series Tube Diffusers from Corgin are generally chosen in applications with high airflow requirements, and/or in harsh wastewater environments, in removable or fixed grid configurations. The diffusers are...
  • Corgin: Replacement aerators for wastewater treatment plant
    Replacement aerators for wastewater treatment plant
    Corgin
    When two aerators broke down and had to be removed from a wastewater treatment plant in Ayrshire, the operators turned to Corgin to investigate a replacement solutions. The aerators were two of four original rotor aerators...
  • Corgin: Spiral aerators for domestic wastewater treatment works
    Spiral aerators for domestic wastewater treatment works
    Corgin
    Corgin's spiral aerators are used widely by UK wastewater utilities because of their reliability and effectiveness at improving performance and meeting compliance objectives. One of the company's existing clients, which...
  • Corgin: Emergency brush rotor replacement
    Emergency brush rotor replacement
    Corgin
    Corgin learned of a failure in equipment that was about to impact a small sewage works with a population equivalent of 2500 in the Lake District. Due to its proximity to nearby conservation areas it had a tight consent...
  • Corgin: Spiral aerators for landfill leachate lagoons
    Spiral aerators for landfill leachate lagoons
    Corgin
    Renewi plc (formerly Shanks Waste Management) needed to replace the submerged venturi aerators for three sites in Argyll and Bute, Scotland. The company selected spiral aerators from Corgin, and installed eight aerators in...
  • Corgin: Spiral aerators for Scottish Water sewage works
    Spiral aerators for Scottish Water sewage works
    Corgin
    A sewage works situated upstream on the River Forth in Scotland was used to coping with high volumes of water. The failure of one of the brush rotors created a major problem. With DO and ammonia levels likely to go haywire...
  • Sulzer: Disc diffuser system type ABS
    Disc diffuser system type ABS
    Sulzer
    The ABS disc diffuser system (Nopon) is a highly reliable fine bubble aeration system for municipal and industrial wastewater. Five alternative diffuser models are available, all of which are fast and easy to install and...
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Aerators- helping you find the best companies for your project.