Therefore, the utilization of CaCO3 combination with coagulation method by PAC is efficient in removing HA because it is able to perform both as alkaline chemical and as a coagulant agent about the same time.
Therefore, theutilization of CaCO3 combination with coagulation method by PACis efficient in removing HA because it is able to perform both asalkaline chemical and as a coagulant agent about the same time.