An object of the present invention is to provide rush carbide, rush activated carbon, and a method for producing the same, which can be used for various purposes for the purpose of effectively using rush waste generated in the production of tatami mats and the like. It is in. In order to solve the above problems, an rush charcoal obtained by carbonizing rush at 200 to 400 ° C. is provided. Thereby, since the ratio (D / G) of the relative intensity of the G band and the D band in the Raman spectrum is increased, a high hardness and low conductivity rush carbide is provided. Furthermore, this rush carbide can also be used as a cesium adsorbent because the adsorption performance of cesium is enhanced. Further, the rush carbide obtained by activating the rush carbide can be used as an iodine adsorbent or a hydrogen sulfide adsorbent because the adsorption performance of iodine and hydrogen sulfide is enhanced. [Selection] Figure 2
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