▎ 摘　　要

NOVELTY - Removing nitrate nitrogen from water body with nano zero-valent iron/reduced graphene oxide composite material combined with oxidant comprises adding the nano-zero-valent iron/reduced graphene oxide composite material into water containing nitrate nitrogen, carrying out reduction and removal reaction to generate ammonia nitrogen, adding oxidant to react until ammonia nitrogen is oxidized to nitrogen, ultrasonically dispersing the nano-zero-valent iron/reduced graphene oxide composite material in a solution containing iron salt by graphene oxide powder, and adding reducing agent through the liquid phase reduction method to obtain nanometer zero-valent iron/reduced graphene oxide composite material. USE - The method is useful for removing nitrate nitrogen from water body with nano zero-valent iron/reduced graphene oxide composite material. ADVANTAGE - The method has efficient reduction performance for the removal of nitrate nitrogen, completely and harmlessly removes nitrate nitrogen in the water body, has simple removal process, easily controlled operation, stable property, is environmentally friendly, is potential multifunctional environmental pollution treatment system, and has broad application prospects.