▎ 摘　　要

NOVELTY - Removing total phosphorus and trivalent chromium ions in reverse osmosis concentrated water comprises (i) introducing reverse osmosis concentrated water into coagulation stirring sedimentation tank, the front part of the coagulation stirring sedimentation tank is coagulation stirring area, the mechanical stirring speed is 55-75 revolutions/minute, the hydraulic retention time is 150-350 seconds, and the rear part of the coagulation stirring sedimentation tank is sedimentation area, the residence time is 23-37 minutes, and (ii) after passing through the coagulation and stirring sedimentation tank, introducing reverse osmosis concentrated water into capacitive deionization device with voltage of 1.4-1.6 V and residence time of 8-32 minutes, after treatment, the total phosphorus in the reverse osmosis concentrated water is 0.01-0.06 mg/l, the chromium(III) is 0.01-0.07 mg/l, and the reverse osmosis concentrated water is discharged up to standard. USE - The method is useful for removing total phosphorus and trivalent chromium ions in reverse osmosis concentrated water. ADVANTAGE - The method: realizes effective removal of pollutants; is environmentally friendly; and has good social and environmental benefits. DETAILED DESCRIPTION - An INDEPENDENT CLAIM is also included for treatment system used in removing total phosphorus and trivalent chromium ions in reverse osmosis concentrated water, comprising water inlet pump, coagulation stirring sedimentation tank, lifting pump, capacitor deionization device and drain pump, a mixed modified attapulgite dephosphorization agent is placed in the coagulation stirring sedimentation tank.