Pulverized fuel ash/chitosan composite adsorption material

The invention belongs to the technical field of composite adsorption materials and discloses a pulverized fuel ash/chitosan composite adsorption material. Pretreated pulverized fuel ash is added into an acetic acid solution of chitosan; then, the ash is added into the crylic acid solution containing a cross-linking agent and an initiator, and the pulverized fuel ash/chitosan composite adsorption material is synthesized in a hydrophilic environment. The water, salt and dye absorption properties of the prepared composite material are tested. The pulverized fuel ash of a coal-fired power plant is used as a raw material, the pulverized fuel ash or the pulverized fuel ash treated (acidized, alkalized, organized and the like) is introduced into a chitosan/polyacrylic acid compounding system to obtain the chitosan grafted polyacrylic acid/pulverized fuel ash composite material. The composite material is a functional adsorption material and can be used for printing and dyeing wastewater treatment. 本发明属于复合吸附材料技术领域，公开了