Oxytetracycline mushroom dreg biochar for selectively recovering uranium, method, adsorbent and application of oxytetracycline mushroom dreg biochar

The invention provides oxytetracycline fungus residue biochar for selectively recycling uranium, a method, an adsorbent and application, and relates to the technical field of uranium resource recycling, the method comprises the following steps: placing oxytetracycline fungus residues in a carbonization furnace, closing a furnace cover of the carbonization furnace, and continuously introducing protective gas into the carbonization furnace; the carbonization temperature of the carbonization furnace is adjusted to 100-300 DEG C, and the oxytetracycline mushroom dregs are carbonized for 0.5-3 h; and after the temperature is reduced, taking out the charcoal product, grinding, and sieving with a 100-mesh sieve. According to the method, the biochar with selective adsorption on uranium is prepared, a new way for recycling oxytetracycline mushroom dregs is developed, high-selectivity adsorption on uranium can be achieved under the coexistence of multiple metal ions, the content of radionuclides in a water body is redu