Question

List and explain the steps of purification of water in water treatment plants.

Answer 1

The processes involved in the purification of water help provide you with clean, safe water

1. Screening: The first water treatment step is screening, which is when water from lakes, rivers, or the ground passes through a screen to filter out waste.
2. Coagulation and Flocculation: During this phase of the drinking water treatment process, positively charged chemicals are added to the water, which causes negatively charged particles like dirt to bind together into larger particles to make them settle down.
3. Filtration: Filtration is also crucial for water treatment and purification because it helps eliminate potentially harmful pathogens like parasites, bacteria, and viruses from the water supply.
4. Disinfectant: After filtration is complete, disinfectants like chlorine are added to the water supply to kill any remaining microorganisms or bacteria and help keep the water clean until distribution.
5. pH scale: treatment plants adjust the pH of the water so that it neither corrodes nor deposits too much scale in pipes, which helps plumbing work its best and prevents damage and lead and copper poisoning.