Selective adsorption of phenanthrene on activated carbons for surfactant reuse in soil washing process

摘要

Phenanthrene dissolved in Triton X-100 solution was separated by sorption with three GACs with different particle size (4～12, 12～20, and 20～40 mesh). The highest adsorption selectivity was obtained with the 20～40 mesh over a wide concentration range of phenanthrene and Triton X-100. The results demonstrate that the selective adsorption is potentially effective to reuse surfactants in a soil-washing process for the remediation of contaminated soils.