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Wastewater Treatment Systems

Confused about Wastewater Treatment Systems?

Need a wastewater treatment plant for your home? If you are living in an area that is not connected to a council sewer, you need to treat the wastewater on-site. This can be achieved by using a septic tank, sewage treatment system or a septic tank with a sand filter.

Express wastewater provides installation, repairs and maintenance of these three types of wastewater treatment systems. We know that wastewater treatment plants can be confusing and expensive. That's why we want to make it easy for you by walking you through the process every step of the way. From design to installation, we will be there with you every step of the way. And our expert technicians will make sure that your plant is perfect for your property. Call us today for a free 30-minute wastewater treatment phone consultation.

Book a Wastewater Treatment specialist

Types of Wastewater Treatment Systems

If your property is not connected to the municipal sewage system, the treatment and disposal of the wastewater must occur on your property.

There are 3 main types of wastewater treatment systems:

Septic Tanks

The wastewater that we collect from our houses is carried through pipes to the underground septic tanks. It must be ensured that these tanks are maintained properly so as to ensure proper functioning. Once the tank is filled up, sewage water comes out from it and enters the absorption trench or leach field system.

A Septic tank is the most well-known component of a septic system. The process a septic tank utilises is quite simple - some of the matter (ie. grease and fats) float to the top of the tank and form a scum layer, whilst the rest of the broken down solids (sludge) sinks to the bottom of the tank.


  • Septic tanks are suitable for sandy or rocky areas
  • They are not suitable for blocks smaller than 8000 sq metres
  • The tank needs to be desludged every 3-5 years

Find out more about septic systems - How Does A Septic Tank Work?

Septic Tanks with Sand Filters

Treat your wastewater to a higher standard with the help of a septic sand system. The sand acts as an excellent filtering agent and it is used as a secondary treatment process.

The sand septic system works like a conventional septic system. Once the water is treated in the septic tank, the effluent is distributed evenly throughout the sand bed. The effluent seeps down into the gravel and sand. Here, the effluent is treated further by microbes and sand.

Microbes in the soil absorb some of the nutrients present in the wastewater and the sand filters out the solids. The treated water is of better quality and can be reused and recycled.


  • Sewage treatment systems are suitable for sandy, rocky or steep areas
  • The quality of treated effluent is excellent
  • Treated effluent can be used for surface or subsurface drip irrigation
  • Allowed in environmentally sensitive areas
  • The system would need to be serviced annually
  • The tank needs to be desludged every 3-5 years

Find out more about septic sand systems - How Do Septic System Sand Filters Work?

Sewage Treatment Systems

A sewage treatment plant treats water by both primary and secondary treatment methods. They utilise secondary treatment methods including aeration, clarification and disinfection to treat the water to a higher standard. The treated water can be used on gardens and lawns.


  • Sewage treatment systems are suitable for sandy, rocky or steep areas
  • The quality of treated effluent is excellent
  • Treated effluent can be used for surface or subsurface drip irrigation
  • Allowed in environmentally sensitive areas or areas with a high water table
  • Allowed in commercial properties
  • The system would need to be serviced quarterly
  • The tank needs to be desludged every 3-5 years

Find out more about septic sand systems - How does a Home Sewage Treatment Plant work?

Design & Installation of Wastewater Treatment Plants

When it comes to wastewater treatment plants, there's no best system only the system that works best for you and your property. Our expert technicians will assess your property and make recommendations that suit your wastewater requirements and budget. A detailed quote will be prepared for your project and once you are satisfied we will design the system. The wastewater design will be submitted to the local council for approval and once received the wastewater treatment plant installation project will get underway.

Find out more about our wastewater design services - Wastewater Design and wastewater treatment costs.

Wastewater Treatment Systems - Maintenance and Repairs

Does your wastewater system need repairs? We know that wastewater systems can be a headache to deal with, which is why we offer repairs and maintenance for our clients. No job is too big or too small for us - we'll take care of everything for you.

You deserve the best service possible, and that's what we aim to provide. Our expert technicians are available 24/7 to help you with whatever you need. We want to make sure your wastewater system is running smoothly - so you can focus on the things that matter most to you. Contact us today for a free consultation!

Reliable Home Wastewater Treatment Specialists South East Queensland

For more information on home wastewater treatment systems, contact us today on 1300 770 594. Alternatively, complete our online booking form and we will be happy to help. We look forward to hearing from you.


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For more in depth wastewater treatment information visit our Wastewater treatment Information page

Why Use Express Wastewater Solutions?


    Because we are not a manufacturer and not tied to one particular system we can always offer the best solution for your wastewater needs.


    Because we do this every day we have developed a close knit expert team for every step of the process – from plans and council paperwork to excavations, electrical and plumbing. We handle it all to make the whole process as stress free and quick as possible.


    Most people have never installed a home sewerage treatment plant and don’t know the next step, that is why we offer a free 30 minute phone consult with one of our experts to point you in the right direction.


    We handle your wastewater installation from start to finish we can deal with all the trades, council everything so you don’t have to worry about a thing.


    Have peace of mind knowing that Express are licensed, insured professionals that will do your job right the first time.


    Not sure what system is right for you, or want to know if your system is working properly? Just give one of our friendly wastewater experts a call and they will be more than happy to help.


    We will always look to repair your system rather than replace it if it does not need to be, which will generally save large amounts of money sometimes up to and over $10,000.