Aqueous Solutions is a Melbourne design, manufacturing and servicing company providing practical and innovative desalination equipment (reverse osmosis) and wastewater treatment solutions. Our company has a proud history of solving water desalination and wastewater problems for our customers and can provide expertise in the following areas - Water Desalination. Equipment. Reverse Osmosis. Waste Water Treatment. Our success is based on - close liaison with customers to ensure that their needs are met; experienced chemical engineers who understand water; and a strong manufacturing base ensuring robust and economical solutions.