▎ 摘　　要

NOVELTY - Method for preparing sewage filtering material involves crushing quartz sand, anthracite particles, graphene, and limestone into powder, sieving the powder, mixing into mixture (A), uniformly mixing sodium allyl sulfonate, distearoyl diethylene triamine, and titanium oxide, then stirring, allowing to stand to obtain mixture (B), uniformly mixing the mixture (A) with the mixture (B), performing ultrasonic vibration treatment, drying, granulating, using the cotton and linen fiber fabric as the bottom layer material, evenly layering the particles on the cotton and linen fiber fabric, and evenly layering the ion exchange resin on the fiber fabric. USE - The method for is useful preparing sewage filtering material for filtering impurities and chemical components in industrial wastewater. ADVANTAGE - The method prepares filtering material which changes water quality of industrial wastewater and has good filtering effect, strong function, and improved efficiency. DETAILED DESCRIPTION - Method for preparing sewage filtering material involves (a) weighing 10-12 wt.% cotton and linen fiber fabric, 3-7 wt.% graphene, 35-45 wt.% quartz sand, 30-45 wt.% limestone, 24-32 wt.% cotton and linen fiber fabric, 40-55 wt.% anthracite particles, 10-15 wt.% porous ceramic matrix, 6-11 wt.% nano modified activated carbon, 1-3 wt.% sodium allyl sulfonate, 5-9 wt.% distearoyl diethylene triamine and 4-11 wt.% titanium oxide, (b) crushing quartz sand, anthracite particles, graphene, and limestone into powder, sieving the powder through a 100-mesh sieve, and mixing into mixture (A), (b) uniformly mixing sodium allyl sulfonate, distearoyl diethylene triamine, and titanium oxide, then stirring at medium and low speed, and allowing to stand to obtain mixture (B), (d) uniformly mixing the mixture (A) with the mixture (B), performing ultrasonic vibration treatment, drying and granulating and (e) using the cotton and linen fiber fabric as the bottom layer material, evenly layering the particles obtained in step (d) on the cotton and linen fiber fabric, and evenly layering the ion exchange resin on the fiber fabric.