What is the purpose of using polymers in water treatment?

The purpose of using polymers in water treatment is primarily to improve coagulation and clarify the water. Polymers act as coagulants and flocculants, helping to bind small particles together into larger aggregates that can be more easily removed during the filtration process. This is especially important in removing suspended solids, organic matter, and other impurities from water, which enhances its clarity and quality.

In water treatment, the coagulation process involves the destabilization of colloidal particles so that they can clump together. Polymers facilitate this process effectively, leading to improved removal of contaminants and clearer effluent. Their use can significantly optimize the treatment process, especially in systems where conventional methods may be insufficient.

In contrast, increasing water hardness does not relate to the function of polymers, as hardness refers to the presence of calcium and magnesium ions rather than particle removal. Creating chemical reactions for disinfection usually involves different agents like chlorine or ozone, not polymers. Similarly, while some flavors in drinking water can be influenced by treatment processes, adding flavor is not a function of polymers in water treatment.