The diagram illustrates how to recycle stormwater in an Australian city.
Overall, it can be easily seen that the process comprises five steps, beginning with collecting rainwater and ending at the distribution stage.
In the first stage, water is collected from the drain which was beneath the house, then flows through the tube to water recycling plants where the following four stages will be conducted. At the plant, some object waste such as plastic and rubbish are filtered out first and then small particles also be eliminated to ensure that water is purified and doesn’t have any bacteria and viruses. Finally, the plants get rid of unwanted molecules and salt. What is left over is treated with chlorine 4mg/l and put into safe water storage before pumping to households, ready to be used.
- The internet has transformed the way information is shared and consumed but it has also created problems that did not exist before What are the most serious problems associated with the internet and what solutions can you suggest 89
- The table below gives information about the problems faced by children in two primary schools in 2005 and 2015 67
- It is predicted that robots are going to become increasingly important in our lives How could robots be used in the future Will this development be a positive or a negative development 78
- Watching a live performance such as a play concert or sporting event is more enjoyable than watching the same event on television To what extent do you agree or disagree with this statement 61
- The diagram below shows one way of manufacturing ceramic pots