▎ 摘　　要

NOVELTY - An alkaline low-phosphorus reverse osmosis membrane scale inhibitor comprises 15-50 wt.% ethylene diamine tetra methylene alendronate, 10-40 wt.% phosphonoacetic acid with molecule weight of 1800-2200, 5-20 wt.% dimethyl fumarate, 2-8 wt.% aqueous dispersion of graphene oxide with concentration of 0.5-2 mg/ml, and 20-50 wt.% pH regulator. USE - Alkaline low-phosphorus reverse osmosis membrane scale inhibitor. ADVANTAGE - The scale inhibitor has synergistic effect of physical adsorption and chemical adsorption of pollutant, good corrosion inhibition effect, anti-mildew effect, better sterilization effect, and is simple to prepare. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for a method for preparing an alkaline low-phosphorus reverse osmosis membrane scale inhibitor.