▎ 摘　　要

NOVELTY - Preparing graphene oxide chemical oxygen demand (COD) adsorption fixing agent comprises (i) mixing attapulgite and attapulgite/graphene oxide (GO) according to the metering ratio, mixing in the sealed mixer to obtain the composite attapulgite mixed material, where the attapulgite/GO is composite material obtained by compositing graphene oxide and attapulgite, (ii) adding polymeric aluminum chloride (PAC) in the composite attapulgite mixed material obtained in the step (i), mixing uniformly, mixing the composite attapulgite mixed material obtained in the step (i) with PAC after metering in the mixer with stirring device, mixing uniformly to obtain the mixture, (iii) grinding and sieving the mixture obtained in step (ii), returning further grinding without sieving. USE - The graphene oxide COD adsorption fixing agent is useful for purifying water (claimed). DETAILED DESCRIPTION - INDEPENDENT CLAIMs are also included for: (1) preparing graphene oxide COD adsorption fixing agent, by above method; and (2) use of graphene oxide COD adsorption fixing agent comprising mixing with sewage for water purification.