
Water and wastewater operators need an understanding of chemistry to properly carry out the chemical phases of treatment, including coagulation, sedimentation, softening, and disinfection.Knowledge of basic chemistry is also required to pass operator certification examinations...

Water and wastewater operators need an understanding of chemistry to properly carry out the chemical phases of treatment, including coagulation, sedimentation, softening, and disinfection. Knowledge of basic chemistry is also required to pass operator certification examinations...