Are Aerated Wastewater Treatment Systems Expensive to Operate?


Aerated wastewater treatment systems are commonly used to treat domestic and industrial wastewater. These systems use a combination of physical, biological, and chemical processes to remove pollutants from wastewater before it is discharged into the environment. One common concern about these systems is whether they are expensive to run. In this blog post, we will explore the costs associated with aerated wastewater treatment systems and whether they are a cost-effective solution for wastewater treatment.

The Costs of Aerated Wastewater Treatment Systems

There are several costs associated with operating an aerated wastewater treatment system. These include:

  • Energy costs: Aerated wastewater treatment systems require energy to operate. This energy is used to power the blowers or diffusers that provide oxygen to the bacteria that break down the pollutants in the wastewater. The amount of energy required depends on the size of the system and the amount of wastewater that needs to be treated.
  • Maintenance costs: Like any other type of equipment, aerated wastewater treatment systems require regular maintenance to ensure they are working properly. This includes things like replacing worn-out parts, cleaning filters, and inspecting the system for any signs of damage or wear and tear.
  • Chemical costs: Some aerated wastewater treatment systems may require the use of chemicals to enhance the treatment process. These chemicals can include things like coagulants, flocculants, or pH adjusters. The cost of these chemicals will depend on the type of system being used and the amount of wastewater being treated.
  • Disposal costs: Once the wastewater has been treated, it must be disposed of properly. This can involve additional costs for transport and disposal, depending on the regulations in your area.

When you add up all of these costs, it’s easy to see why some people might think that aerated wastewater treatment systems are expensive to run. However, it’s important to keep in mind that the costs will vary depending on the specific system being used, the size of the system, and the amount of wastewater being treated.

  • Efficient treatment: Aerated wastewater treatment systems are very efficient at removing pollutants from wastewater. This means that they can treat a large volume of wastewater in a relatively short amount of time, which can help to reduce costs.
  • Low maintenance: While aerated wastewater treatment systems do require some maintenance, they generally require less maintenance than other types of treatment systems. This means that the long-term maintenance costs are typically lower.
  • Regenerate response

    Healthy Departments, The Environmental Protection Authority, Water Catchment Authorities and/or Council require AWTS to be serviced every 3 months/4 times per year. Pricing does vary due to the size/type and location of the system.

    An annual contract/4services for a standard domestic system is between \$340.00-\$550.00. It is now quite common to have a commercial size system on a property due to dual occupancies being connected to a single system or larger homes being built. Annual servicing charges for a commercial system may be higher.

    Your service technician is to check on the following at every service:

    Wastewater Treatment Plants

        • Air Pump/Water Pump (filter/pressure)
        • Replenish the supply of Chlorine tablets.
        • Free Chlorine
        • PH levels
        • Water clarity
        • The condition of internal pipes/components
        • Electrical

    Other working items in a AWTS are pumps and aerations blowers and these may be required to be replaced at some time.

    Eco-Septic is a Sydney-based manufacturer and specialises in commercial wastewater systems of various shapes and designs. We can provide fast and free quotes relevant to your commercial wastewater needs, all while keeping in mind individual spending capabilities.

    Contact us today for a fast quote at 1800 808 135 or visit us at

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