▎ 摘　　要

NOVELTY - Preparing multi-group chelating magnetic mycelium water purifying agent comprises preparing and cultivation of mycelia graphene oxide composite precursor to obtain fungal mycelium pellets, inactivating, washing and crushing the mycelium pellets, dissolving according to the mass concentration of mycelium 100-200 g/l to obtain mycelium suspension liquid under constant temperature stirring conditions, homogeneous graft reduction and magnetic separation under constant temperature stirring conditions, adding acidified ferrous ion aqueous solution to the resulting suspension of spiny-chain mycelia graphene oxide composite precursor, stabilizing the homogeneous reaction, dropping dilute reduction dropwise aqueous solution until there is no phase change in the mixed solution, the intermediate product is finally obtained by magnetic field separation, and oxidation, drying, and magnetization, washing intermediate product with deionized water, after constant temperature oxidation drying. USE - The method I useful for preparing multi-group chelating magnetic mycelium water purifying agent. ADVANTAGE - The method has strong heavy metal matching performance and adsorption bridging co-precipitation effect. DETAILED DESCRIPTION - Preparing multi-group chelating magnetic mycelium water purifying agent comprises (i) preparing and cultivation of mycelia graphene oxide composite precursor to obtain fungal mycelium pellets, inactivating, washing and crushing the mycelium pellets, dissolving according to the mass concentration of mycelium 100-200 g/l to obtain mycelium suspension liquid under constant temperature stirring conditions, slowly adding graphene oxide activation solution to the resulting mycelial suspension to obtain a spiny chain mycelium oxide composite precursor suspension, (ii) homogeneous graft reduction and magnetic separation under constant temperature stirring conditions, adding acidified ferrous ion aqueous solution to the resulting suspension of spiny-chain mycelia graphene oxide composite precursor, stabilizing the homogeneous reaction, dropping dilute reduction dropwise aqueous solution until there is no phase change in the mixed solution, the intermediate product is finally obtained by magnetic field separation, and (iii) oxidation, drying, and magnetization, washing intermediate product with deionized water, after constant temperature oxidation drying. INDEPENDENT CLAIMS are also included for: (1) multi-group chelating magnetic mycelium water purifying agent; and (2) use of purifying agent in treating complex heavy metal wastewater, comprising (i) performing heavy metal concentration detection on complex heavy metal wastewater, when the total mass concentration of heavy metals is greater than 2 g/l, when the total mass concentration of heavy metals is less than 2 g/l, (ii) adding alkaline solution to the wastewater, and adding polyacrylamide or polyaluminum sulfate, and adjusting the pH to between 9 and 12, stirring, filtering and separate to obtain the supernatant one, adding to the resulting supernatant one by adding purifying agent, stirring, separating the residue and the supernatant by a magnetic field, treating the resulting supernatant with an activated carbon filler layer after reaching the standard emission, and (iii) adding the multi-group chelating magnetic mycelium water purifier to the heavy metal wastewater, stirring, separating the magnetic field to obtain the residue and the supernatant three, discharging the clear liquid 3 reaching the standard after being treated with the activated carbon filler layer.