Patent ID: 7998439

Claim:
A separation and recycling method, for recycling uranium and fluoride from a waste liquid, comprising: a uranium-recycling process, comprising the steps of: adding an alkaline metal compound or monovalent cations into the waste liquid to promote a precipitation of the uranium in the waste liquid; adding and uniformly mixing a first coagulant aid into the waste liquid to obtain a uranium-containing precipitate in the waste liquid; and separating the uranium-containing precipitate to obtain a U-removed waste liquid; and a fluoride-recycling process, comprising: adding an alkaline earth metal compound and a strong acid into the uranium-removed waste liquid to promote a precipitation of the fluoride in the uranium-removed waste liquid; adding and uniformly mixing a second coagulant aid in the uranium-removed waste liquid to obtain a fluoride-containing precipitate; and separating the fluoride-containing precipitate to obtain a uranium-removed and fluoride-removed waste liquid.