Hi I went to a field trip to the Water Treatment in Jakarta last week on Thursday the 5th.It was fun and this is what we saw and learned.

In Stage 1 we saw a very big machine which used to separate the big trash from the dirty water. The trash is like black plastic bags, plastic water bottle, branches and etc.

In Stage 2 after they separate the garbage and dirty water, they add

minerals and they oxygenate the water. Before they put the minerals the water color is brown after that it became a little cleaner.

In Stage 3 they put Alum to make a floc for the small bits of dirt and it combines together like a magnet.

In Stage 4 the filtration of water treatment. They put 1 meter of sand into the dirty water in the pond. And

the sand settles down and it becomes a sediment.

In Stage 5 after they do the filtration

they also do the disinfection which the water has no bacteria and clean and it's gong to be brought to the lab and tested it.

This is the process of how dirty water becomes clean water. And the water that we use everyday. It is a lot of fun learning about it and you can see the process of it. It's amazing!