▎ 摘　　要

NOVELTY - Hydrogel-coated adsorbent material, is claimed. The hydrogel-coated adsorbent material is spherical, and is prepared from raw materials including hydrogel and adsorbent. USE - The hydrogel-coated adsorbent material is useful in sewage treatment (claimed). ADVANTAGE - The material: is spherical; has prolong service life; and is easy to recycle and reuse. The method: utilizes hydrogel, which has extremely hydrophilic three-dimensional network structure gel, and can diffuse or penetrate freely water-soluble pollutants of sewage in hydrogel, and is conducive to improve the efficiency of sewage treatment; reduces the scraping and abrasion between materials; and is suitable for large-scale sewage treatment in multiple scenarios. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for preparing hydrogel-coated adsorbent material, comprising taking hydrogel, then adding water until dissolve, and heating at 50-100 degrees C to form hydrogel precursor, adding adsorbent into hydrogel precursor, and mixing uniformly to obtain mixed suspension, absorbing the mixed suspension, and then adding into oil phase to form spherical hydrogel-coated adsorbent material.