WATER TREATMENT PLANT

WATER TREATMENT PLANT

On November the 12th we went to the water treatment plant, (aetra) with our class and the other classes who has math the same time as us.

STATION 1: Remove garbage through coarse an fine filters.

First, you remove the garbage from the water in a coarse filter. Our class was lucky because we got to see the process of the coarse filtering. Then the garbage that werent taken from the coarse filter were processed through a fine filter. We saw some small animals pass through the fine filters. What happened to those small animals?

STATION 2: Add in chemicals and stir to create floc.

In this step they added chemicals into the water which made the garbage clump together in this vomit looking thing. (but they recycle the floc and make them into bricks.)

STATION 3: Allow sediment and floc to settle at the bottom.

In this station the sediment and floc settle at the bottom so the water doesnt get dirty.

STATION 4: Water is filtered through one meter of sand.

In this step particles of water that you cant see are filtered. The sand gets changed every hour so that the sand is clean. They dont use normal sand they use special sand for the filtering.

STATION 5: Disinfectants are added to the water.

Now, they add disinfectants to the water so that they kill all the bacteria and germs inside the water, and after the water is filtered through the sand it goes to the disinfection part.

STATION 6: Testing is done to make sure water is clean and safe to drink.

Here they test the water in chemicals to make sure the water is potable. There are two ways to make sure water is safe to drink. It looks so much different! when they show it to you.

That is all the steps and process for cleaning water! Now you know that is hard to clean water. My favorite part of the trip was the last step when they showed us the water compared.