The diagram illustrates the process of reusing rainwater for use by residents in an Australian metropolis. Overall, there are nine steps in the process, starting with collecting water and ending with pumping it for the utilisation of Australian people.
At the first step, stormwater is gathered in sewers and then sent via a tube that leads to a water recycling facility. The facility uses a four-stage purification process to clean up storm water. The first stage starts with the removal of plastic and trash. The third step of recycling then involves filtering out germs and viruses once the removal of tiny particles has been completed. The final step involves the removal of salt and unneeded molecules.
After the process of recycling, chlorine, at a concentration level of 4 mg/l, is added for water disinfection after which the water is stored in a water tank. The process concludes with the water being pumped to Australian end-users for consumption.