Last Thursday, I went to the Water Treatment Plant Field Trip to see how dirty water is purified. There are 6 stages in total to purify water.Firstly, there is a big iron window bar to percolate a big pieces of garbage and they (The water treatment guiders) clean it every hour to make the water cleaner.
Then, the second stage is, "Adding mineral and oxygenate" to get water aeration.
In the next stage, a chemical called 'Alum' is added in the water and surprisingly because of it, the dirt gathers and make a big dirt floc and we call this step coagulation.
But then in a stage 4, big flocs change into small flocs and the flocs will sediment to the bottom of the water which is a step called, sedimentation.
Then finally, there is a step called filtration which is a very important stage. In filtration, the clorn is added and it is used as a disinfection and it makes water really clear.
For the last stage, they check the purified water if it's safe or not.
I was pretty surprised that it was this complicated to purify water and I got a better knowledge about water.
1 comment:
I agree with your last comment especially, Youngwoo. There are several steps, and in total it can look pretty complicated. I hope you notice some similarities in the process when you visit the Bintaro Lama kampung.
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