Desalination plants

Understanding the raw water feed treatment requirements is the key to efficient desalination using reverse osmosis.

Our approach to desalination is to ensure we understand all the specific project requirements so that our equipment will operate reliably. The water desalination process is site specific. The amount of salt and mineral content and level of contaminants can vary greatly and we provide solutions to meet these challenges through tailored design ensuring the entire system is optimised for our client’s particular source water and outcome .

Reverse Osmosis Membrane Systems

High quality water can be produced from brackish, seawater and contaminated sources reliably and on a scale ranging from a few thousand litres per day to many millions.

Improvements in membrane technology in recent years have seen costs reduce and efficiencies increase resulting in reverse osmosis desalination being widely accessible across a range of applications.

Aqueous have more than a decade’s experience installing RO systems, producing drinking water from natural resources such as bores, rivers and the sea as well as facilitating recycling and reuse of contaminated industrial and mining waste water.

Reverse Osmosis Membrane Systems

The Process

Design and build 

Aqueous use state-of-the-art 2D and 3D software to design our desalination systems. Process design is optimised using the latest computer aided simulation software. Optimised designs mean higher efficiency plants resulting in lower energy, consumable and operating costs.

Designs are reviewed using a hazard and operability study (HAZOP) process to ensure operator safety and compliance with all relevant Australian standards and industry regulations. We follow stringent in-house drafting and documentation standards.

Water quality and pilot testing

To help clients evaluate the operational and cost benefits of different treatment technologies, we can provide water quality testing and small-scale mobile pilot plants to optimise the process for the full scale plant.

RO Pretreatment

Each RO plant we build has a tailored pretreatment system to handle the feed water supply.
Our range of conventional and membrane pretreatment solutions include:

  • cartridge filtration
  • media filtration with coagulation (optional)
  • iron, manganese removal
  • microfiltration (MF), ultrafiltration (UF) and nanofiltration (NF)
  • pretreatment chlorination and dechlorination

RO Post-Treatment

Post-treatment processes prepare desalinated water for use or consumption. As part of this process, Aqueous can provide:

  • remineralisation and pH adjustment
  • post-treatment U.V and chlorine disinfection
  • Electro Dialysis Reversal (EDR) for ultra pure applications



Containerisation minimises onsite installation time and provides ease of transport. Aqueous can supply ultra filtration & reverse osmosis systems fully integrated inside a 20’ or 40’ shipping container, including pretreatment, chemical dosing, disinfection, post treatment remineralisation and pH adjustment.


Experience Matters

With years’ of experience with the desalination process, our knowledge is second to none and all of our water desalination equipment is engineered to perform reliably. As seen above, our water desalination options are many – if more information is needed, please contact us to talk about the desalination process in more detail. +613 9397 3066