▎ 摘　　要

NOVELTY - Heavy underground coal gasification polluted water metal ions purification involves preparing magnetic graphene composite material, mixing magnetic graphene composite material with target contaminated water, and recovering the magnetic graphene composite material. USE - Method for purifying heavy metal ions in underground coal gasification polluted water for preparing magnetic graphene composite (claimed). ADVANTAGE - The method purifies heavy metal ions in underground coal gasification polluted water in a simple, cost-effective and eco-friendly manner with effective purification of complicated heavy metal ions. DESCRIPTION OF DRAWING(S) - The drawing shows a schematic flowchart of the method for purifying heavy metal ions. (Drawing includes non-English language text).