Patent Number: 
Section: claims

1. A solidification method of radioactive waste, comprising:preparing an inorganic adsorbent absorbed with a radionuclide;kneading a binder and the inorganic adsorbent absorbed with the radionuclide to obtain a kneaded object;extruding the kneaded object to obtain an extruded material object;cutting the extruded material object to obtain at least one extruded material block; andfiring the at least one extruded material block to solidify the at least one extruded material block. 2. The solidification method of radioactive waste according to claim 1, wherein the binder contains clayey mineral. 3. The solidification method of radioactive waste according to claim 2, wherein the clayey mineral is composed primarily of bentonite or kaolin. 4. The solidification method of radioactive waste according to claim 1, wherein the binder is added to the inorganic adsorbent in an amount of 4%˜60% of the inorganic adsorbent. 5. The solidification method of radioactive waste according to claim 1, wherein the inorganic adsorbent includes chabazite or crystalline silico titanate. 6. The solidification method of radioactive waste according to claim 1, wherein the at least one extruded material block is fired during the firing at temperature set in a range of 700-900 degrees Celsius in an ambient atmosphere.