▎ 摘　　要

NOVELTY - Magnetic nano adsorption material comprises 40-50 pts. wt. nano calcium carbonate, 20-35 pts. wt. nano ceramic powder, 5-10 pts. wt. nano silicon carbide, 10-18 pts. wt. boron carbide, 6-10 pts. wt. nano bentonite, 5-10 pts. wt. diatomaceous earth, 5-10 pts. wt. aluminum oxide, 1-5 pts. wt. quartz powder, 3-8 pts. wt. nano nickel oxide, 3-8 pts. wt. modified graphene oxide, 8-15 pts. wt. polytetrafluoroethylene, 6-12 pts. wt. polyurethane resin, 6-10 pts. wt. sodium carboxymethyl cellulose, 1-5 pts. wt. dibutyl phthalate, 1-5 pts. wt. phenyl hydroxybenzoate and 0.1-0.5 pt. wt. medical gypsum powder. USE - The magnetic nano adsorption material is used in wastewater pollution treatment (claimed). ADVANTAGE - The material has broad spectrum activity, high efficiency adsorption ability for heavy metal and organic pollutants, high polarity of organic matters and adsorbs organic substance from the water phase, and has high adsorption capacity to radionuclide. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing magnetic nano adsorption material involving (a) adding nano bentonite, diatomaceous earth and aluminum oxide to a high-speed mixer, heating at 65-80 degrees C, uniformly mixing for 10-15 minutes using an ultrasonic generator, adding nano calcium carbonate, nano ceramic powder, nano silicon carbide, boron carbide, quartz powder and nano nickel oxide and continuously mixing by an ultrasonic generator for 10-15 minutes to obtain a mixture (I), (b) adding the mixture (I) to a sand mill and grinding for 40-60 minutes to obtain a mixture (II), (c) mixing modified graphene oxide, polytetrafluoroethylene, polyurethane resin and sodium carboxymethyl cellulose to high-speed mixer, mixing for 10-15 minutes, adding the mixture (II), heating at 75-80 degrees C, carrying out heat preservation for 15-20 minutes, naturally cooling, adding dibutyl phthalate, phenyl hydroxybenzoate and medical gypsum powder after the temperature is reduced to 35-40 degrees C and continuously mixing for 20-25 minutes to obtain mixture (III) and (d) extruding the mixture (III) into pieces at 90-100 degrees C through an extruder, cooling and crushing, then adding the mixture into pulverizer and sieving the crushed powder particles using 180 mesh sieve to obtain the finished product.