Harvesting rainwater, treating waste water and making it all available for reuse
The company removes any reusable resources from the waste before treating it to meet environmental and trade waste requirements and disposing what is left.
As part of completing their City West Water water management action plan
(or WaterMAP), Veolia identified and is now reusing its wastewater combined with rainwater collected from the company’s roofs. It is then treated through a sand filter and provides good quality water that can be reused in the company’s own waste treatment processes.
This water is collected and stored in dedicated 50,000 litre tanks. The majority of the water is used in Veolia’s filter press which requires clean water for back washing processes. When excess water is produced and cannot be used by Veolia, they plan to make it available to local councils for irrigation of parks and gardens.
Veolia approached us for assistance with purchasing the sand filter, four 50,000 litre water tanks, a tank filling station and all associated pipes, pumps and fittings, at a total cost of $52,000. We were able to assist with a 50% contribution of $26,000 towards the project.
The project has seen Veolia reduce their drinking water use by up to 20%. It has been so successful, Veolia is now investigating installing additional tanks to capture and store more rainwater, as well as establishing partnerships with companies that have relatively clean waste streams to enable more water to be treated for reuse.