▎ 摘　　要

NOVELTY - The wastewater treatment agent comprises 50-100 pts. wt. graphene adsorbent, 25-35 pts. wt. activated carbon, 0-3 pts. wt. surfactant and 15-25 pts. wt. corncob, where graphene adsorbent includes carboxylated graphene oxide and carbonyl iron oxide graphene composite. USE - Agent used for treating wastewater (claimed). ADVANTAGE - The wastewater treatment agent modify graphene, compound activated carbon, corn cob and appropriate amount of active agent to reduce the self-aggregation phenomenon, improve the flocculation of heavy metals in complex wastewater, printing and dyeing fertilizers, and improve the removal effect. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a preparation of wastewater treatment agent, which involves (1) weighing activated carbon and corn cob according to the weight of the wastewater treatment agent, and mixing and crushing them through a 200-mesh sieve, (2) mixing carboxylated graphene oxide and carbonyl iron graphene oxide compound, surfactant and water, adding the crushed activated carbon and corncob, stirring for 0.5-1 hour at 65-75 degrees C, and drying.