▎ 摘　　要

NOVELTY - Flocculating aid comprises 70-85 pts. wt. maltodextrin graphene microcapsules and 15-30 pts. wt. dispersant, where the maltodextrin graphene microcapsule comprises a core material and a wall material covering the core material, the mass ratio of the wall material and the core material is 0.5:1-2:1, and the core material is graphene and the wall material is maltodextrin. USE - As flocculating aid. ADVANTAGE - The flocculating aid can improve flocculation efficiency and purification rate of unit flocculant, and maintain or reduce the dosage of flocculant. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for a method for preparing the flocculating aid, which involves (a) preparing maltodextrin graphene microcapsules and (b) mixing maltodextrin graphene microcapsules and dispersant.