Effect of ammonia as a complexing agent on electrokinetic remediation of copper-contaminated soil

摘要: Abstract Ammonium acetate was used as anolytes in the electrokinetic removal of copper from soil. The experiments were conducted using a rectangular reactor 7.5 cm width, 10 cm height, and 11 cm length. Granular graphite electrode material. All under constant current conditions (10 mA). results show that high concentration ammonium (>0.1 M) needed to sustain electroosmotic flow. apparent electrical conductivity system dominated by thin layer soil (1 cm) close cathode. When less than 0.1 M, this decreased 0.001 S/m caused large voltage loss. increased sustained at 1 × 10 −4  cm 2 /V-s acetate, whereas it −6 when low. efficiency with reaching 36% after 1 wk treatment. Most un-removed concentrated For 0.5 M experiment, volume containing 10% original Therefore, remediation strategy can be developed first treat contaminated electrokinetics then, focus on removing