Research Article

Preparation and Coagulation Behavior of a Novel Multiple Flocculant Based on Cationic Polymer, Hydroxy Aluminum, and Clay Minerals

Table 15

Coagulation behaviors of CMHa versus PAC for coal-washing wastewater treatment (original wastewater 1200 NTU).

Dosage of flocculants (mg/L)CPAM (mg/L)Settling time (s)Residual turbidity (NTU)Coagulation behaviors

SPAC (50)52019Larger alum floc
CMHa (30)5159.4Larger alum floc
CMHa (20)51517Larger alum floc

SPAC (80)15040Smaller alum floc
CMHa (50)6014Larger alum floc
CMHa (40)8022Larger alum floc