| 摘要 |
<p>Disclosed is a method for purifying contaminated water containing heavy metal impurities, comprising the steps of directing a flow of the contaminated water through a first electrolytic oxidation chamber (26), comprising a plurality of electrodes arranged parallel with the direction of the flow, wherein the electrodes include at least one cathode, at least one sacrificial iron anode, and at least one sacrificial magnesium anode, and wherein the water passes over and around the electrodes, applying a voltage to the electrodes to electrolytically generate oxidized iron and magnesium irons from the anodes, and to oxidize the heavy metal impurities in the water, rendering the impurities insoluble, wherein the magnesium irons constitute flocculating moieties, permitting a floc to form in water exiting the chamber (100), separating the floc from the water to generate purified water and sludge (110), and directing the sludge into a rotary vacuum filter (118) to generate a sludge cake. The method may also comprise the step of combining the sludge cake with a cementaceous material (120) to form a nonleachable solid. A corresponding apparatus is also disclosed.</p> |
