The diagram illustrates the process of reusing storm water in an Australian metropolis.
Overall, this is a linear and man-made process consisting of five major stages, commencing with collecting water from rain and concluding with utilizing filtered water.
In the first stage, storm water is collected from drains after large downpours. Next, collected water is transferred to a water recycling plant through a huge funnel for the process of purification. The water recycling plant consists of four removal steps, including removal of plastic/ rubbish, small particles, bacteria/ viruses and molecules, salt. As the first step of the filteration, plastic and rubbish, biggest particles remained in the water, are removed. Then, in the second stage, ensure that all the small particles are eliminated before destroying bacteria and viruses. This continuous till removing tiny molecules and unnecessary salt.
Following the filteration, approximately 4mg of chlorine is added to the filtered water for further purification. Once the water has been purified to a certain safe level, it is stored in a water tank before being sent back to Australian household purposes and reused on sunny days.