▎ 摘　　要

NOVELTY - A composite water treatment material comprises 1-800 mass% tourmaline powder, 200-999 mass% acid-modified sepiolite fiber and 30-300 mass% graphene or oxidized graphene. USE - Composite water treatment material. ADVANTAGE - The material has high adsorption efficiency, small dosage, better antibacterial performance, environmental benefit and social benefit, improves activated sludge growth, and can be prepared in a simple, cost-effective and energy-saving manner. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for A method for preparing a composite water treatment material, which involves mixing meerschaum and tourmaline, heating and refluxing the obtained mixed material, adding oxidized graphite with water and ethanol solution, ultrasonically dispersing the solution to obtain an oxidized graphene suspension, adding the mixed material, the acid-modified sepiolite fiber and the tourmaline powder with the suspension, filtering the suspension, and drying and grinding the obtained filtrate to obtain a finished product.