Water treatment holds a lot of importance in everyday life as it is responsible for water supply. At first, the water is collected at a place after installing pumping station in klargester, so that it can be treated. The water usually comes from local water bodies or ground water sources.
The following is a complete process of water treatment-
1)Screening: After collection, the water collected in the tanks goes through this process. Under this, all the large solid impurities are taken out of the tank using a metal screen called bars. This makes water free from any large physical material.
2)Chemical cleaners: After screening, chemical cleaners like anionic polymers, sodium aluminates etc.are added to water. These are called coagulants and are responsible for flocking in small impurities together to form bigger presence and settle down in water. They should be properly mixed with water for better results.
3)Sedimentation : Now the water is allowed to rest in a clean pit so that all the small and large impurities that have a solid form can settle down. A wiper type instrument cleans the floor pit at regular intervals and the water stats becoming clearer and more transparent. This is done so that no solid impurity can damage the filter.
4)Filtration and disinfection : Now, the water is transported to the top of a filter system, from where it enters the system and by using gravity, flows down to the bottom while getting filtered. Now that the water is filtered, disinfectants are added to the water to make it free from any harmful bacteria and infective viruses.