A wastewater recycling solution provided by Osmoflo at Origin Energy’s Darling Downs Power Station is enabling the electricity generator to reduce its reliance on bores located some 20km away and is solving a wastewater disposal problem. Prior to the Osmoflo installation, much of the wastewater produced on site needed to be trucked away for disposal, a requirement that is now much reduced.
Commissioned in July 2010, the Osmoflo plant includes pre-treatment by multi-media filtration followed by reverse osmosis desalination. Feed water consists of suitable wastewater streams at the site, supplemented by bore water as required. Capacity of the plant is in excess of one megalitre per day (ML/d) with treated water being equivalent to potable standard. To further minimise waste, a microfiltration system treats backwash water enabling its reuse without further treatment.
An Osmoflo rental desalination plant was located at the site to deal with immediate water needs prior to the commissioning of the permanent plant.