Question

What are the various step involved in water purification system explain

Answer 1

Answer:

adding chlorine,filteration, store water in copper vessel

Answer 2

Answer:

1. ION EXCHANGE AND COAGULATION

This is the first step of the purification process. The water from the city councils is contaminated with unwanted minerals and this step aids in removing the minerals that form hard water. Some heavy metals like iron are also separated through this procedure. Alum and other chemicals are added to the water and flocs are formed. The dirt particles are then attracted to the flocs which then compel them to go down and settle at the bottom of the tank.

2. SEDIMENTATION

After the first step, the floc and the water go through the sedimentation process. When the water settles, floc moves to the bottom and settles there. There are also sediment filters that trap dirt particles. This helps to prevent the equipment from being polluted.

3. FILTRATION AND GRANULAR ACTIVATED CARBON

Here, water is filtered and passed through layers of sand, charcoal, and the rest. The particles that were left after sedimentation are then removed. A carbon filtration process is also involved, and herbicides, chlorine, and other pollutants are eliminated.

 

4. DISINFECTION

In this step, water is moved into a closed tank that has ultraviolet lights that is a sterilizing agent. If it is underground water, this step is enough to sufficiently clean the water because all the microorganisms will be killed. After disinfecting the water, it flows through the pipes where it is processed using reverse osmosis.

5. CARBON FILTERS

The filter captures the impurities in the water. The RO machine is also protected because contaminants are eliminated thus only clean water goes up in the system.

6. REVERSE OSMOSIS

When the water reaches the homes, it has to undergo another purification process called reverse osmosis. Here, a semi-permeable membrane is used to remove any impurities present in the water. All the dissolved contaminants that might have been missed in the previous stages are removed here. In addition to this, a sweet taste is added to the water in this stage.

 

7. STORE PURIFIED WATER

Clean water is finally stored in the tanks after the above processes.