▎ 摘　　要

NOVELTY - Composite material comprises 17-22 pts. wt. calcium lignosulfonate,20-24 pts. wt. graphene oxide, 5-11 pts. wt. ethylenediamine tetraacetic acid, 4-7 pts. wt. sodium silicate, 2-3 pts. wt. sodium chloride, 27-35 pts. wt. chitosan, 4-7 pts. wt. glutaraldehyde, 1-4 pts. wt. triphenylsilylamine, 5-8 pts. wt. manganese dioxide, 4-10 pts. wt. stearic acid, 6-10 pts. wt. silane coupling agent and 15-31 pts. wt. nano-magnetic diatomaceous earth powder. USE - The composite material is useful for treating heavy metal nickel waste water (claimed). ADVANTAGE - The composite material has strong adsorption ability and high efficient; and is environmentally friendly. DETAILED DESCRIPTION - Composite material comprises 17-22 pts. wt. calcium lignosulfonate,20-24 pts. wt. graphene oxide, 5-11 pts. wt. ethylenediamine tetraacetic acid, 4-7 pts. wt. sodium silicate, 2-3 pts. wt. sodium chloride, 27-35 pts. wt. chitosan, 4-7 pts. wt. glutaraldehyde, 1-4 pts. wt. triphenylsilylamine, 5-8 pts. wt. manganese dioxide, 4-10 pts. wt. stearic acid, 6-10 pts. wt. silane coupling agent and 15-31 pts. wt. nano-magnetic diatomaceous earth powder, nano-magnetic zeolite powder is ultrafine pulverized zeolite modified by an acid, loading the iron oxide particles, and resulting particle size is 300-500 mesh.