Coagulation neutralises the charge holding fine solids in suspension; flocculation then binds those destabilised particles into a floc heavy enough to settle or be filtered.
The pair only works in the right pH band, which is why alkalinity adjustment usually sits alongside the coagulant dose rather than being treated as a separate step.
What we supply
Cationic Reagent PTAC 69%, Sodium Hexametaphosphate, Sodium Carbonate Anhydrous and Magnesium Sulphate.
What we supply
Cationic Reagent PTAC 69%Sodium HexametaphosphateSodium Carbonate AnhydrousMagnesium Sulphate
Charge neutralisation Suspended particles carry like charges and stay apart. A cationic reagent neutralises that charge so they can approach each other and aggregate.
Cationic Reagent PTAC A quaternary ammonium reagent used to build cationic polymers and to modify starch — the same chemistry that gives a flocculant its charge density.
Conditioning the water Soda ash adjusts alkalinity so the coagulant works in its effective pH band; magnesium sulphate assists floc formation in specific waters.