▎ 摘　　要

NOVELTY - A repair agent comprises 10-18 pts. wt. nano-alumina, 10-25 pts. wt. chitosan-graphene composite material, 6-12 pts. wt. ammonium polyphosphate, 6-15 pts. wt. Schiff base, 10-35 pts. wt. roselle, 5-11 pts. wt. cashew nut shell oil, 4-8 pts. wt. furan fructose, 3-5 pts. wt. sodium polyacrylate, 3-5 pts. wt. copper rosinate, 3-6 pts. wt. sodium bentonite, 4-7 pts. wt. sunflower low ester pectin, 5-8 pts. wt. gum Arabic, 1-3 pts. wt. Span (RTM: Sorbitan fatty acid ester), 1-3 pts. wt. wood flour and 1-5 pts. wt. calcium carbonate. USE - Repair agent for repairing cadmium-contaminated soil or water bodies. ADVANTAGE - The repair agent ensures enhanced contaminated soil or water body repairing effect by simple and economical process. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation method of repair agent for repairing cadmium-contaminated soil or water bodies, which involves (1) mixing nano-alumina, chitosan-graphene composite material, sodium bentonite, wood flour and sunflower low ester pectin, adding Schiff base, ammonium polyphosphate and calcium carbonate, stirring for 10-15 minutes, adding roselle, stirring for 20-30 minutes to obtain mixture (A), transferring the mixture to reaction kettle, heating at 100-120 degrees C for 1-2 hours and cooling to room temperature, (2) adding cashew nut shell oil, furan fructose, copper rosinate and gum Arabic, mixing for 5-15 minutes at 3000-6000 rpm, adding sodium polyacrylate, stirring for 5-10 minutes at 200-1000 rpm, drying and ultrasonically dispersing for 5-10 minutes.