Magnetic Iron Exchange (MIEX)

Magnetic Iron Exchange (MIEX)

At our Mount Pleasant and Middle River Water Filtration Plants, we use Magnetic Iron Exchange (MIEX®) to treat the water.   Mount Pleasant was the first plant in the world to use this revolutionary process.

MIEX® – a specialised ion exchange resin which contains unique magnetic properties was developed after many years of research and teamwork by SA Water, Orica Watercare and the CSIRO Division of Molecular Science.

MIEX® resin is added to the raw water to remove dissolved organic carbon (DOC) prior to employing conventional water treatment processes. DOC is found in all natural water sources and is the result of the decomposition of

What does MIEX® do?

The MIEX® resin works like a magnet, attracting dissolved organic carbon (DOC) in the water. DOC is the main cause of colour in water, and it can affect both the taste and smell of drinking water.

Using this process has the side benefit of reducing the chlorine dose needed to disinfect the water.

Why is MIEX® innovative?

The resin can be regenerated and recycled through the plant again and again. It also reduces cost because it removes the need for large resin stocks. It's a continuous and flexible process, one that can adjust to wide variations in the quality of source water.

Magnetic Iron Exchange benefits include:

  • Cost-effective removal of dissolved organic carbon
  • Significant reductions in the creation of disinfection by-products
  • Lower volumes of chemicals needed (both coagulant and chlorine)
  • Lower volumes of sludge production
  • Reduction in water colour

  • Major faults

  • Underway

  • Multiple streets
  • Goolwa
  • 19/10/2017
  • Water Quality
  • SA Water customers in Goolwa and surrounding areas, including Goolwa Beach, Goolwa South, Goolwa North and Hindmarsh Island may currently be experiencing discoloured or milky water coming out of their taps.

    This water remains safe to drink.

    During recent planned maintenance in the area, some existing sediment in the local water supply network has been stirred up, resulting in the discoloured water.

    We are working hard to resolve the issue, and we are flushing out the discoloured water. Given the size of the water network in the area, this may take some time. At this stage, we are hoping water supply will return to normal by Friday afternoon.

    We will continue to monitor the situation, and provide updates on our website and Facebook page.

    For further information or any questions, please contact us on 1300 SA WATER.

  • See all major faults

  • Scheduled works

  • Underway
  • Thomas St
  • Croydon
  • 23/10/2017
  • Supply Interruption
  • Estimated start time (water off): 23/10/2017 09:00 AM
    Estimated restore time (water back on): 23/10/2017 03:00 PM

    We’re committed to improving your services and are undertaking maintenance work in Croydon. Water supply in the surrounding area may be impacted during the above times. Traffic restrictions may also apply.


  • See all scheduled works