Aerofloat provides unique sewage treatment plants (STPs) using technology incorporated into over 500 plants around Australia. Aerofloat’s STPs provide a low-maintenance, cost-effective solution which can be easily relocated if required.

Aerofloat’s proprietary technology has taken proven sewage treatment processes and applied a more mechanically simple design, to provide a superior effluent quality. The simpler design means less mechanically componentry, improving the reliability of the plant and minimising maintenance requirements.

Aerofloat’s sewage treatment plant uses a hybrid MBBR (Moving Bed Biofilm Reactor) and SBR (Sequencing Batch Reactor) design. The combination of the two technologies ensures the system is suitable for developments where the load is variable.

Key features of the Aerofloat technology include:

High Flow Capability

Unique hybrid MBBR + SBR combination ensures the system copes well with high variable flow rates.

Turnkey Installation

For remote locations, most mechanical components arrive in a container fully assembled, pre-wired and ready to go. Lightweight HDPE tanks are delivered to site. Simply connect the pipework from the containerised components to the tanks for simple installation.

Low Maintenance

Removable lances in the MBBR allow cleaning to take place without the need to drain the tank or stop the process. The air locked syphon decanter is a fixed weir at bottom water level and has no moving parts. There is also no regular cleaning or membrane replacement required.

Cost Effective

The tanks used are standard sizes and are made of HDPE rather than stainless steel or painted carbon steel, making them a more cost-effective solution.


The STP components can fit into a shipping container and the lightweight cylindrical HDPE tanks filled with biomedia allow for the relocation to alternative sites if the development has a short life expectancy.

Scalable & Modular

The STPs are a modular design and are suitable for populations between 100 and 5000 persons.


The STPs have a fully automated system for process control and the capability to remotely monitor the plant.

Aerofloat has a number of other key offerings to complement sewage treatment plant design, including:

Download Aerofloat Packaged Sewage Treatment Plants Brochure