▎ 摘　　要

NOVELTY - A methylcellulose graphene flocculation auxiliary agent comprises 75-88 pts. wt. methylcellulose graphene microcapsule and 12-25 pts. wt. dispersant, where methylcellulose graphene microcapsule comprises core material and covering wall material at mass ratio of 0.3:1-1:1. The core material is graphene and wall material is cellulose. USE - Methylcellulose graphene flocculation auxiliary agent used for improving flocculation efficiency of flocculant in sewage treatment (claimed). ADVANTAGE - The flocculation auxiliary agent improves flocculation efficiency and purification of flocculant and reduces dosage of flocculant. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is included for preparation of the microcapsule comprising adding graphene in pure water and ultrasonically dispersing to obtain graphene dispersion; adding wall material and stirring at 40-60 degrees C at 800-1500 revolutions/minute (rpm) under inert gas pressure of 0.5-2 MPa for 30-60 minutes; and filtering, collecting solid product, freezing, and drying.