How may coagulant aids be classified?

Coagulant aids can be classified into different categories based on their chemical characteristics and functions in the water treatment process. The correct classification includes oxidants, absorbents, and polymers.

Oxidants are substances that facilitate the removal of impurities by oxidizing them, thereby improving the coagulation process. Absorbents function by attracting and holding contaminants from the water, enhancing the aggregation of particles for more effective removal. Polymers, on the other hand, act as coagulants to help bind particles together and improve sedimentation.

Each of these categories plays a crucial role in the treatment of water, making it necessary to consider all three types to achieve optimal results in coagulant applications. By recognizing the contributions of oxidants, absorbents, and polymers, water treatment operators can better determine the appropriate coagulant aids for specific water quality challenges.