What process follows coagulation in water treatment?

Coagulation is a crucial step in the water treatment process where chemicals are added to the water to bind with impurities, forming larger particles known as floc. Following coagulation, the next process is flocculation. During flocculation, the water is gently mixed to encourage the formation of these larger particles, allowing them to clump together and settle more easily. This step is vital for effectively removing suspended solids and colloidal matter from the water, improving its clarity and quality before it moves on to further treatment steps.

Filtration, disinfection, and chlorination are subsequent processes that take place after flocculation. Filtration typically follows flocculation to remove the larger particles, while disinfection is focused on eliminating pathogens in the water. Chlorination is a specific method of disinfection that involves adding chlorine to the water, but it is also performed after the flocculation and filtration processes. Thus, flocculation directly comes after coagulation, making it the correct answer.