A method for co-producing polysilicon aluminum ferric sulfate and waste water treatment powder by utilizing pac residue

The invention relates to a method for co-producing polysilicon aluminum ferric sulfate and waste water treatment powder by using PAC residue, comprising the following steps: mixing PAC residue, catalyst and NaOH solution, filtering to obtain alkali-soluble filtrate and filter residue; preparing polysilicone by using alkali-soluble filtrate Aluminum ferric silicosulfate; use filter residue to prepare waste water treatment powder.The beneficial effects of the present invention are: using PAC waste residues to co-produce water purification products and waste water treatment powders can not only provide raw materials for the production of water purifier products, but also avoid the treatment cost of PAC residues, which belongs to waste treatment by waste and solid waste resources Chemical utilization; the product polysilicon aluminum ferric sulfate is used for sewage treatment, with rapid flocculation, large and solid flocs, fast sedimentation, wide application range, wide pH range for trial use, suitable for low temperature and low turbidity water, and has good decolorization and algae removal Effect: The product wastewater treatment powder has a certain adsorption performance on suspended organic pollutants in wastewater, and has good decolorization and COD removal effects on dye wastewater.