Physical chemical complex flocculant and preparation method thereof

The invention discloses a physical chemical complex flocculant and a preparation method thereof. The physical chemical complex flocculant comprises the following raw materials in parts by weight: 4-8parts of modified polyacrylamide, 16-32 parts of alum and 6-12 parts of modified adsorption resin. The preparation method includes the following steps: the modified polyacrylamide and the modified adsorption resin are respectively placed in a drying machine for drying, and the alum, the dried modified polyacrylamide and the modified adsorption resin are weighed according to the proportion, placedin a mixer for evenly mixing, and packed to obtain the physical chemical complex flocculant, wherein the temperature of the mixer is set to 20-40DEG C, the spindle speed of the mixer is 29-51 r/min. The physical chemical complex flocculant uses a physical and chemical matching manner to synergistically flocculate, has the advantages of reasonable formula, small amount of use, good flocculation effect, small residual amount