| abstract |
The invention belongs to a recycling method and a device, and in particular relates to a reverse osmosis recycling method and device for uranium mine hydrochloric acid well washing waste liquid. It includes: step 1: pH adjustment; the pH value of the waste liquid needs to be controlled within the range of 6.5-8; step 2: coagulation and precipitation; coagulation and precipitation of the waste liquid with a flocculant; Quartz sand, activated carbon and ion exchange resin are filtered; step 4: security filtration; filter waste liquid through filter element; step 5: reverse osmosis; reverse osmosis of waste liquid with reverse osmosis membrane. The remarkable effect of the invention is: in the reverse osmosis stage, U is removed, Ca 2+ , Mg 2+ , SO 4 2- , Cl- , Fe, and electrical conductivity have obvious effects, and the concentration of chlorine radicals is basically controlled at 0.37g/L below, while reducing the turbidity. |