▎ 摘　　要

NOVELTY - A rapid coagulation water treatment agent comprises 2-10 pts. wt. acrylamide oligomer/graphene oxide/iron oxide composite, 5-40 pts. wt. polyacrylamide, 20-40 pts. wt. polysilicate aluminum ferric, 3-25 pts. wt. poly diallyl dimethyl ammonium chloride and 1-5 pts. wt. sodium bicarbonate. USE - Rapid coagulation water treatment agent. ADVANTAGE - The method is low-cost. DETAILED DESCRIPTION - INDEPENDENT CLAIMS are included for: (1) preparation of rapid coagulation water treatment agent comprising taking graphene oxide, adding 1-10 mg/mL sodium hydroxide and monochloroacetic acid aqueous solution, mixing for 1-10 hours, separating, washing to carboxylated graphene oxide, taking trivalent iron salt, sodium acrylate, ethylene glycol and anhydrous sodium acetate, reacting at 200 degrees C, cooling with ethanol, washing with deionized water to obtain carboxylated iron oxide, taking carboxylated graphene oxide, carboxylated iron oxide and acrylamide oligomer, adding dimethyl sulfoxide, mixing, adding 1-ethyl-3-(3-dimethylaminopropyl)carbodiimide, reacting at 45 degrees C, separating, washing to obtain acrylamide oligomer/graphene oxide/iron oxide composite, adding polyacrylamide and poly diallyl dimethyl ammonium chloride, mixing, cooling, adding remaining raw materials, and mixing; and (2) process of water treatment method comprising inducing raw water into mixing pool, adding rapid coagulation water treatment according agent, mixing, carrying out first preliminary flocculation via magnetic separation, taking upper layer, adding rapid coagulation water treatment agent, carrying out secondary flocculation via magnetic separation, taking aqueous layer, and filtering.