▎ 摘　　要

NOVELTY - Removing and recycling hexavalent chromium in neutral water body based on sequence conversion of oxidation-reduction reaction of filter system in electrode comprises using sequential oxidation-reduction electrochemical method to realize reduction of hexavalent chromium in neutral sewage and in-situ precipitation of chromium(III), it reaches the effect of detecting the water without chromium ion, and adopting the sequential reduction-oxidation electrochemical method to realize the regeneration of the cathode and the concentration of the chromium pollutant and the recycling of the resource. USE - The method is useful for removing and recycling hexavalent chromium in neutral water body based on sequence conversion of oxidation-reduction reaction of filter system in electrode. ADVANTAGE - The method: does not utilize chemical agent; easily realizes automatic control and device; suitable for on-line treatment of medium-and small-scale neutral hexavalent chromium sewage, and in situ repair of drinking water source and underground water polluted by hexavalent chromium.