If suspended matter in the water..><

First the presence of suspended matter in drinking water is objectionable, so it is removed for aesthetic reasons. Second, the presence of suspended particles interferes with the disinfection process. The suspended solids interfere in two specific manners. First, they create a shield for the microorganisms, thus inhibiting the ability of the disinfectant to destroy the microorganisms. Second, the suspended solids chemically interact with the disinfectant and may reduce its lethality towards the microorganisms. All of these factors dictate the need to remove the suspended solids.