Unfortunately, sewage smells. However we do our very best to minimise odour at our sewage treatment plants (STPs).
We routinely implement a number of measures to lower the impact of odour on the community. These include:
- sealing the sewer
- regular cleaning
- addition of chemicals to prevent odours being emitted
- biological and chemical treatment of odour.
Odour emissions and intensity are affected by a number of variables such as the age of the sewage, wind direction, rain and temperature.
If you have any concerns regarding our sewage treatment plants, or if you notice any damage or faults, please contact us.
Sewage goes through a multi-stage process of treatment at our plants. These processes clean and filter the sewage to remove:
- bad bacteria
- non-organic matter (plastics, wet wipes etc)
- organic solid matter
At some sewage treatment plants, we add Magnesium Hydroxide Liquid (MHL), also known as Milk of Magnesia, to raw sewage. This is an important product that helps reduce odour and protect underground assets against corrosion.
Find out more by downloading our batching plant process diagram (PDF 1.53MB)
Take a virtual video tour of a sewage treatment plant
We own 17 sewage treatment plants (STPs).
They are located in the following areas:
- Bribie Island
- Burpengary East
- Murrumba Downs
- South Caboolture
You can view STP locations on a map of our region.
We are aware of residents' concerns about odour around our Maroochydore sewage treatment plant.
The roof on a sludge digester (a piece of equipment at the plant) broke unexpectedly which has caused odour from the plant to be stronger than usual. We have a dedicated team of experienced staff and specialists working to resolve this issue as soon as possible. Fortunately, odour is intermittent and depends on weather conditions.
We acknowledge residents' frustration and are treating this issue with the highest priority. We are committed to resolving this as soon as possible and sincerely apologise to residents for the inconvenience caused.