litracy

__The__ __Sewage system__

In Melbourne a long time ago people used to dump there waste in the Yarra river. That was the only river they could get access to so people were getting sick from it. Because of this the government decided to build treatment plants. Today we have a good system because the bacteria do all the work. The system today is the rain falls on the roof and pushes its way through the gutters and into the tanks or tank. And so when you flush the toilet the Tank water gets flushed down the sewage pipes and down to the treatment plant. The rain that’s on the ground evaporates up into the clouds and then when it gets cold it rains again. So when you flush the toilet the waste gets pushed through the pipes and out into the treatment plant it goes to Brooklyn and hoppers crossing. Sewage is transported to Melbourne’s treatment plants a system of pipes and pumping stations. It can take as long as 8 hours for sewage to reach the treatment plant. That waste goes through the sewage pipes and gets pushed through them by gravity, gravity pushes the waste to a big building and this is where it comes into the bacteria part. There is a big sheet of bacteria and when the waste reaches it that bacteria eats most of the stuff that can break down. When the waste reaches the ponds there are these machines that make the bacteria and flouts out to all the other ponds and the sewage sinks to the bottom and evaporates. The bacteria eat the waste and farts out this gas that they trap under water. Then the bacteria are so environmentally friendly that it just burns away in the sun. So that leaves fresh drinking water that we could nearly drink. It travels to Lake Borrie and gets treated and turns into class C and class A so then it’s released out to port fillip bay. So the next times you flush the toilet remember that what type of journey it will travel on.

Published and written by: Caitlin Grant