Rotary evaporation residue treatment method for copper nitrate wastewater

The rotary evaporation residue treatment method comprises the following steps: calcining rotary evaporation residues to obtain calcined residues; dissolving the calcined residues with water, and filtering to obtain waste residues and a first wastewater solution; adding the first wastewater solution into ion exchange resin for adsorption chromatography to obtain a second wastewater solution; adjusting the pH value of the second wastewater solution, and filtering the second wastewater solution to obtain a third wastewater solution; dissolving ferrous sulfate in the third wastewater solution, adding lime, reacting while stirring, and filtering the reacted third wastewater solution to obtain a fourth wastewater solution; through the mode, organic carbon in the rotary evaporation residues is converted into carbon dioxide through calcination to be directly removed, and organic phosphorus is converted into inorganic phosphorus; heavy metal ions and a small amount of inorganic phosphorus formed by conversion are remo