Recent data show increased perchlorate concentrations in groundwater, milk, fruits and vegetables. Toxicological evidence suggests that even ppb levels of perchlorate can induce thyroid hormone disruption. Widespread perchlorate contamination of aquifers and drinking-water supplies around the U.S. have led to stringent regulations in several states to reduce perchlorate concentrations to acceptable levels for humans consumption (e.g., < 20 ppb). Several abiotic perchlorate treatment technologies exist, but the majority of them are unable to chemically reduce perchlorate to chloride. We propose the use of a novel sorbent for perchlorate, and present results from preliminary adsorption/desorption studies. Perchlorate sorption isotherms (23 C) showed that a significant amount of perchlorate was removed (65%) at the lowest initial perchlorate concentration (10 mg/L) after only 2-h of contact time. Increasing the contact time to 24-h resulted in an increased perchlorate removal (65 to 76%) at the lowest initial perchlorate concentration. Desorbed perchlorate (with de-ionized water) was less 2% of the sorbed amount, regardless of desorption time or amount of sorbed perchlorate. There was a significant (p < 0.001) linear correlation (r² > 0.95) between the amount of removed perchlorate with chloride that evolved in the solution after reaction for 24- to 96-h, suggesting perchlorate degradation after initial sorption onto the adsorbing surface, and its subsequent chemical reduction to relatively innocuous chloride.