Abstract:
The main objectives of this research were characterized by the properties and efficacy of Poly Aluminum Ferric Silicate Chloride (PAFSiC) in coagulation process. The quality water was compared to low turbidity and total dissolved solid, respectively. The water sampling was Hui Pet Reservoir, Lampang Province. The 3 commercial chemical coagulants were Alum, Poly Aluminum Chloride (PAC) Ferric chloride (FeCl3). Additional factors such as conductivity, sulphate and hardness were studied. The results showed that PAFSiC has the ability to reduce the above values without the need to add coagulant aid compared to the commercial chemical coagulants mentioned above. Some commercial chemicals require the addition of coagulant aid for higher efficiency. In this study, the response surface methodology (RSM) was used to optimize process condition in coagulant process. The experiment found that the low turbidity removal efficiency of the sample was 94.4%. Three factors were determined: pH, PAFSiC concentration, and anionic polymer concentration.