Process of filtration river water into drinking water?

1. Pretreatment

The first step in the filtration process is pretreatment. This involves removing large particles and debris from the river water, such as leaves, twigs, and sediment. This can be done using a variety of methods, such as screening, sedimentation, or floatation.

2. Coagulation and Flocculation

Coagulation and flocculation are two processes that are used to remove smaller particles from the water. Coagulation involves adding chemicals to the water that cause the particles to stick together and form larger flocs. Flocculation then follows by mixing the water to encourage the flocs to collide with each other and grow even larger.

3. Sedimentation

Sedimentation is the process of allowing the flocs to settle to the bottom of the tank. This can be done in a variety of ways, such as using gravity settling or lamella settlers.

4. Filtration

Filtration is the process of passing the water through a filter to remove any remaining particles. The type of filter used will depend on the quality of the water and the desired level of treatment. Some common types of filters include sand filters, activated carbon filters, and membrane filters.

5. Disinfection

Disinfection is the final step in the filtration process and is used to kill any remaining bacteria or microorganisms. This is typically done by adding chlorine or other disinfectants to the water.

6. Storage and Distribution

The filtered and disinfected water is stored in a reservoir or tank before being distributed to homes and businesses.