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Dirty water
Water that leaves your house when you take a bath, wash the dishes or flush the toilet is called wastewater. This water ends up in the sewer along with rainwater. We then treat this wastewater to make it safe enough to re-enter the sea or rivers.
Remember the 3 Ps…
Poo, pee and paper are the only things you should put down the toilet.
How we treat wastewater…
1 We pass the wastewater through screens which removes rags, plastic and any other large objects.
2 The wastewater is put into a primary settlement tank where big scrapers remove fine solid matter (called sludge).
3 Bacteria is added to the water to digest the remaining impurities.
4 The water is put into a final settlement tank to remove the last of the sludge and the water is now clean enough to be returned to the rivers or sea.
Click here to watch a short film showing how we treat wastewater
Click here to see where our wastewater treatment works are
