▎ 摘　　要

NOVELTY - Heavy metal polluted soil repairing agent based on graphene oxide, comprises 35-65 pts. wt. graphene oxide/cellulose composite material, 8-18 pts. wt. hydrotalcite loaded with elemental sulfur, 5-12 pts. wt. peanut bran, 2-6 pts. wt. pH regulator and 20-30 pts. wt. chitosan graft polyvinyl alcohol emulsion. USE - The heavy metal polluted soil repairing agent based on graphene oxide is useful in repairing heavy metal cadmium (Cd) polluted soil (claimed). ADVANTAGE - The heavy metal polluted soil repairing agent based on graphene oxide increase the variable negative charge of soil surface, promotes soil colloid to absorb the efficient cadmium, reduces the availability of heavy metal cadmium in soil, thus shortening the repairing period, improves repairing efficiency and fertility of soil, excellent soil repairing comprehensive effect, simple production process, low production cost and has excellent environmental effect in soil. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing heavy metal polluted soil repairing agent based on graphene oxide, comprising (i) according to pts. wt. weighing each raw material, and (ii) adding graphene oxide/cellulose composite material, hydrotalcite loaded with elemental sulfur, peanut bran and pH regulator into chitosan graft polyvinyl alcohol emulsion, ball milling and mixing, vacuum drying to obtain final product.