Students are set the challenge of building a waste water treatment works that will enable a tank full of waste water to be discharged into a local river. They are given a large set of components – such as tanks, pipes, gutters, pumps, sand, filters – and set the task of arranging these components in such a way as to allow the water to be cleaned. This is more of an exercise in trial-and-error rather than careful design. What they will effectively be creating is their own waste treatment works, albeit without the biological digestion reactors. A sense of jeopardy is added by using mocked up foul water, and the provision of a mocked-up clean river into which they must ultimately discharge this water.
Aimed AtKey Stage 4 and 5
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