[en] This article focuses on the efficient removal of iodate by pomelo peel, a low-cost biosorbent. The Langmuir and Pseudo-first-order model are the best fit models. The response surface methodology (RSM) was also used to find the optimal experimental factors and their correlations. The maximum adsorption capacity can reach 6.91 mg g^-1 under the optimal factors. The dominant mechanism is physical adsorption and the oxygen-containing groups of pomelo peel play a decisive role in adsorption. Pomelo peel could be an efficient, economical and eco-friendly iodate adsorbent and RSM is valuable in the research of radioactive waste treatment. (author)