Non-point source pollution adsorbent as well as preparation method and application thereof

• Main Authors: WANG DONG, ZENG RUI, LEE YOO-WON, LI XI, HU ZHIXIN
• Format: Patent
• Language: Chinese; English
• Published: 26.08.2022
• Subjects: CHEMICAL OR PHYSICAL PROCESSES, e.g. CATALYSIS OR COLLOIDCHEMISTRY; DISPOSAL OF SOLID WASTE; PERFORMING OPERATIONS; PHYSICAL OR CHEMICAL PROCESSES OR APPARATUS IN GENERAL; RECLAMATION OF CONTAMINATED SOIL; RECLAMATION OF CONTAMINED SOIL SOIL; THEIR RELEVANT APPARATUS; TRANSPORTING

The invention discloses a non-point source pollution adsorbent as well as a preparation method and application thereof, and relates to the technical field of heavy metal pollution treatment. The non-point source pollution adsorbent is prepared from the following raw materials: 100 parts of carbon nitride, 4-7 parts of calcium salt, 3-5 parts of phosphate, 15-20 parts of ferric salt, 5-10 parts of ferrite and 1-5 parts of graphene oxide. The oxygen content of the graphene oxide is 25%-30%. According to the invention, hydroxyapatite is prepared from calcium salt and phosphate; and through matching of hydroxyapatite and carbon nitride, the adsorption effect of the carbon nitride material is improved. Ferroferric oxide particles are finally formed through the ferric salt and the ferrous salt, the ferroferric oxide particles have magnetism, and after the non-point source pollution adsorbent is treated, the adsorbent can be effectively separated, so that heavy metal elements are separated from the non-point source