Method for treating tungsten-containing liquid and apparatus for treating tungsten-containing liquid

Abstract

In processing tungsten-containing liquid to recover tungsten as a valuable resource, the iron concentration in the recovered sludge is reduced, and the tungsten concentration is increased, thereby efficiently recovering the tungsten-containing sludge as a valuable resource and enhancing its value. [Solution] A method for treating a tungsten-containing liquid, comprising a flocculation step of flocculating a tungsten-containing liquid with an inorganic flocculant, a solid-liquid separation step of separating the flocculated sludge obtained in the flocculation step into solid and liquid, and a dewatering step of dewatering the separated sludge obtained in the solid-liquid separation step to obtain dewatered sludge, wherein the method further comprises a sludge treatment step of treating the separated sludge and / or dewatered sludge with an acidic solution. How to process it.

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