REMOVAL OF Cr(III) FROM CLAY SOILS BY ELECTROKINETICS

摘要: The clay soil was taken from a depth of 0.7‐1.5 m at location on the campus I-Shou University, Kaohsiung, Taiwan. properties are as follows: average particle size 27.8 µm, organic matter content 1.79%, pH 7.0, pHzpc 2.3, BET-N2 specific surface area 29.6 2 g −1 . EK experiments were conducted using Pyrex glass cylindrical cells (4.2 cm φ) consisting three compartments: anode reservoir (5 cm-L), cell (12 and cathode cm-L). Each contained approximately 305 artificially Cr(III)-contaminated (1950 mg kg ) with moisture 45 ± 3%. A fibreglass filter paper (0.45 Gelman Sci.) used to separate processing fluid each end cell. Two sets graphite rod electrodes installed side reservoirs. constant electric gradient 2.5 V applied induce movement electrolyte solution within for 7 days. Total