Method for treating titanium-containing wastewater

The invention provides a method for treating titanium-containing wastewater. The method for treating the titanium-containing wastewater includes steps of firstly, adsorbing organic matters in the titanium-containing wastewater by the aid of high-polymer active adsorbents and removing the organic matters; secondly, carrying out acid adding temperature-control reduced pressure distillation on waste acid, distilling of hydrochloric acid and recycling distillate which is the hydrochloric acid; thirdly, separating solid from liquid in residues and feeding the liquid to a distillation system; fourthly, adding water and alkali into the solid and hydrolyzing the solid; fifthly, carrying out filtering to obtain filter liquid, carrying out electrodialysis desalination on the filter liquid to recycle the filter liquid and drying and firing the solid to obtain titanium dioxide powder. The method for treating the titanium-containing wastewater has the advantages that the titanium-containing wastewater can be effectively t