Effect of solution pH and synthetic method on coagulation behavior of polytitanium-silicate-chloride was firstly studied.
Turbidity and DOM removal of PTSC were better than those of PTC, especially at low pH.
Flocks size of PTSC was larger compared with PTC, especially PTSCc.
Flock strength and recovery ability were slightly enhanced formed by PTSC.
Under acidic condition, PTSC flocks were ompact, while under neutral and alkaline conditions PTSC flocks were loose.